feat(docs): add README.md button opening shared doc drawer

Reuses the existing API.md drawer for README; switching between
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README.md via /api/docs/readme-md.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

docs/superpowers/plans/2026-03-24-control-engine.md

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+# 控制引擎实现计划
+
+> **适用于代理执行：** 必须使用 superpowers:subagent-driven-development（推荐）或 superpowers:executing-plans 逐任务执行。步骤使用复选框（`- [ ]`）语法跟踪进度。
+
+**目标：** 实现投煤器 / 布料机单元的自动控制引擎，包括状态机、故障/通信保护、运行时 API 及前端控制面板。
+
+**架构：** 引擎为每个已启用的单元各启动一个异步任务（由10秒扫描器监督）。每个任务通过 `tokio::time::sleep_until` 控制阶段计时，通过 `tokio::sync::Notify` 在外部状态变化时（自动启停、故障确认）立即唤醒。状态保存在 `ControlRuntimeStore`（内存中，不持久化）。前端通过 `WsMessage::UnitRuntimeChanged` 实时接收更新——**仅在状态转换时推送**，不做周期性推送。
+
+**技术栈：** Rust/Axum 后端、sqlx/PostgreSQL、tokio 异步、Vanilla JS ES 模块前端。
+
+---
+
+## 文件清单
+
+| 文件 | 操作 | 职责 |
+|------|------|------|
+| `src/control/runtime.rs` | ✅ 已完成 | `UnitRuntime` 结构体 + `ControlRuntimeStore`（含 `Notify`） |
+| `src/control/command.rs` | ✅ 已完成 | 共享 `send_pulse_command()` 和 `simulate_run_feedback()` |
+| `src/control/engine.rs` | ✅ 已完成 | 监督器 + 单元异步任务 + `wait_phase` |
+| `src/control/validator.rs` | ✅ 已完成 | 故障/通信锁定时阻断手动指令 |
+| `src/control/mod.rs` | ✅ 已完成 | 导出 `command`、`engine`、`runtime`、`validator` |
+| `src/event.rs` | ✅ 已完成 | 7个 `AppEvent` 变体；`UnitStateChanged` 触发但**不持久化到数据库** |
+| `src/websocket.rs` | ✅ 已完成 | `WsMessage::UnitRuntimeChanged` |
+| `src/service/control.rs` | ✅ 已完成 | `get_all_enabled_units`、`get_equipment_by_unit_id` |
+| `src/handler/control.rs` | ✅ 已完成 | `start_auto`、`stop_auto`、`batch_start_auto`、`batch_stop_auto`、`ack_fault`、`get_unit_runtime`；每次状态变更后调用 `notify_unit` |
+| `src/main.rs` | ✅ 已完成 | 上述端点的路由注册 |
+| `web/js/state.js` | ✅ 已完成 | `runtimes: new Map()` |
+| `web/js/units.js` | ✅ 已完成 | 运行时状态徽章、Auto Start/Stop、Ack Fault；显示 `display_acc_sec` |
+| `web/js/ops.js` | ✅ 已完成 | 运维面板单元卡片显示运行时徽章与 `display_acc_sec` |
+| `web/js/app.js` | ✅ 已完成 | 处理 `UnitRuntimeChanged` WS 消息 |
+| `web/styles.css` | ✅ 已完成 | `.event-card { flex-shrink: 0 }` 防止 flex 列表中文字重叠 |
+
+---
+
+## UnitRuntime 结构体（当前）
+
+```rust
+// src/control/runtime.rs
+#[derive(Debug, Clone, serde::Serialize, serde::Deserialize)]
+pub struct UnitRuntime {
+    pub unit_id: Uuid,
+    pub state: UnitRuntimeState,
+    pub auto_enabled: bool,
+    pub accumulated_run_sec: i64,   // 内部累加器（毫秒），不直接用于显示
+    pub display_acc_sec: i64,       // 状态转换时的快照，前端展示用此字段
+    pub fault_locked: bool,
+    pub flt_active: bool,
+    pub comm_locked: bool,
+    pub manual_ack_required: bool,
+}
+// 注意：elapsed 字段（current_run_elapsed_sec、current_stop_elapsed_sec、
+//       distributor_run_elapsed_sec、last_tick_at）已在事件驱动重构中移除。
+//       计时完全由单元任务内部的 tokio::time::sleep_until 管理，请勿重新添加。
+```
+
+`ControlRuntimeStore` 额外包含：
+
+```rust
+notifiers: Arc<RwLock<HashMap<Uuid, Arc<Notify>>>>,
+
+// 方法：
+pub async fn get_or_create_notify(&self, unit_id: Uuid) -> Arc<Notify>
+pub async fn notify_unit(&self, unit_id: Uuid)  // 每次状态变更后调用
+```
+
+---
+
+## 引擎架构（事件驱动，2026-03-26）
+
+```
+start()
+ └─ supervise()          —— 10秒间隔，为每个启用单元启动 unit_task
+
+unit_task(unit_id)
+ ├─ load_equipment_maps  —— 任务启动时加载一次（缓存至任务生命周期结束）
+ ├─ fault_tick           —— 500ms 间隔，在 wait_phase 内部使用
+ └─ loop:
+     ├─ 重新加载单元配置（检查是否仍启用）
+     ├─ check_fault_comm → 有变化则推送 WS
+     ├─ 若 !auto || fault || comm → select!(fault_tick | notify)，continue
+     └─ 按状态分支：
+         Stopped            → wait_phase(stop_time_sec) → 启动给煤机 → 状态=Running → 推送 WS
+         Running            → wait_phase(run_time_sec)  → 停止给煤机 → acc += run_time_sec
+                              → 若 acc >= acc_time_sec：启动布料机，状态=DistributorRunning
+                              → 否则：状态=Stopped → 推送 WS
+         DistributorRunning → wait_phase(bl_time_sec)   → 停止布料机 → acc=0 → 状态=Stopped → 推送 WS
+         FaultLocked|CommLocked → select!(fault_tick | notify)
+
+wait_phase(secs):
+  deadline = now + secs
+  loop:
+    select! { sleep_until(deadline)  => 返回 true（阶段正常完成）
+              fault_tick.tick()      => 重新检查故障/通信；若中断返回 false
+              notify.notified()      => 重新检查故障/通信；若中断返回 false }
+```
+
+**关键不变量：**
+- `accumulated_run_sec` 每个完成周期**精确**增加 `run_time_sec * 1000`（无 delta 漂移）。
+- `display_acc_sec` 仅在 Running→Stopped 或 Running→DistributorRunning 转换时从 `accumulated_run_sec` 复制快照，前端始终读取 `display_acc_sec`。
+- WS **仅在状态变化时**推送，无周期性推送。
+- `unit.state_changed` 事件仅用于日志记录，**不写入**数据库事件表（频率过高）。
+
+---
+
+## 任务一：扩展 UnitRuntime ✅ 已完成
+
+**文件：** `src/control/runtime.rs`
+
+字段如上方"UnitRuntime 结构体"所示。`ControlRuntimeStore` 包含 `notifiers` 映射，提供 `get_or_create_notify` 和 `notify_unit` 方法。
+
+---
+
+## 任务二：创建共享脉冲指令辅助函数 ✅ 已完成
+
+**文件：** `src/control/command.rs`、`src/control/mod.rs`、`src/handler/control.rs`
+
+`send_pulse_command(connection_manager, point_id, value_type, pulse_ms)` 写入高→延迟→低电平序列。
+
+`simulate_run_feedback(state, eq_id, running)` 在模拟模式下写入虚拟运行反馈值（用于无真实 OPC UA 设备时的调试）。
+
+---
+
+## 任务三：在 validator.rs 添加运行时状态检查 ✅ 已完成
+
+**文件：** `src/control/validator.rs`
+
+在 `validate_manual_control` 的现有 REM/FLT/quality 检查之后添加：
+
+```rust
+if let Some(unit_id) = equipment.unit_id {
+    if let Some(runtime) = state.control_runtime.get(unit_id).await {
+        if runtime.auto_enabled {
+            return Err(ApiErr::Forbidden("自动控制已激活，请先停止自动控制", ...));
+        }
+        if runtime.comm_locked {
+            return Err(ApiErr::Forbidden("单元通信已锁定", ...));
+        }
+        if runtime.fault_locked {
+            return Err(ApiErr::Forbidden("单元处于故障锁定状态", ...));
+        }
+    }
+}
+```
+
+---
+
+## 任务四：扩展 AppEvent 业务事件 ✅ 已完成
+
+**文件：** `src/event.rs`
+
+新增 7 个变体：
+
+```rust
+AutoControlStarted { unit_id: Uuid },
+AutoControlStopped { unit_id: Uuid },
+FaultLocked { unit_id: Uuid, equipment_id: Uuid },
+FaultAcked { unit_id: Uuid },
+CommLocked { unit_id: Uuid },
+CommRecovered { unit_id: Uuid },
+UnitStateChanged { unit_id: Uuid, from_state: String, to_state: String },
+```
+
+**`persist_event_if_needed` 映射：**
+
+| 变体 | 写库？ | event_type |
+|------|--------|-----------|
+| `AutoControlStarted` | ✅ | `unit.auto_control_started` |
+| `AutoControlStopped` | ✅ | `unit.auto_control_stopped` |
+| `FaultLocked` | ✅ | `unit.fault_locked`（level: error）|
+| `FaultAcked` | ✅ | `unit.fault_acked` |
+| `CommLocked` | ✅ | `unit.comm_locked`（level: warn）|
+| `CommRecovered` | ✅ | `unit.comm_recovered` |
+| `UnitStateChanged` | ❌ | —（频率过高，每周期触发）|
+
+---
+
+## 任务五：添加 WsMessage::UnitRuntimeChanged ✅ 已完成
+
+**文件：** `src/websocket.rs`
+
+```rust
+UnitRuntimeChanged(crate::control::runtime::UnitRuntime),
+```
+
+---
+
+## 任务六：添加 service 辅助函数 ✅ 已完成
+
+**文件：** `src/service/control.rs`
+
+```rust
+pub async fn get_all_enabled_units(pool: &PgPool) -> Result<Vec<ControlUnit>, sqlx::Error>
+pub async fn get_equipment_by_unit_id(pool: &PgPool, unit_id: Uuid) -> Result<Vec<Equipment>, sqlx::Error>
+```
+
+---
+
+## 任务七：实现 control/engine.rs ✅ 已完成（事件驱动，2026-03-26）
+
+**文件：** `src/control/engine.rs`
+
+完整设计参见上方"引擎架构"章节。
+
+**后续修改的关键规则：**
+- 除状态转换或故障/通信变化外，不得推送 `WsMessage::UnitRuntimeChanged`。
+- `wait_phase` 必须使用 `sleep_until(deadline)` 而非 `sleep(duration)`——deadline 在阶段开始时固定，故障 tick 重检不会重置计时器。
+- 在 `wait_phase` 内处理 `notify.notified()` 时，必须从 store 重新读取运行时（handler 可能已修改 `auto_enabled`）。
+- 设备映射在每次任务调用时加载一次；若设备配置变更，监督器将在下次扫描（≤10秒）时重启该任务。
+
+---
+
+## 任务八：新增 API 端点 ✅ 已完成
+
+**文件：** `src/handler/control.rs`、`src/main.rs`
+
+| 方法 | 路径 | Handler |
+|------|------|---------|
+| POST | `/api/unit/:id/start-auto` | `start_auto_unit` |
+| POST | `/api/unit/:id/stop-auto` | `stop_auto_unit` |
+| POST | `/api/unit/:id/ack-fault` | `ack_fault_unit` |
+| POST | `/api/unit/batch-start-auto` | `batch_start_auto` |
+| POST | `/api/unit/batch-stop-auto` | `batch_stop_auto` |
+| GET | `/api/unit/:id/runtime` | `get_unit_runtime` |
+
+**Notify 规约：** 每个修改 `auto_enabled` 或 `fault_locked` 的 handler，在 upsert 运行时后**必须**调用 `state.control_runtime.notify_unit(unit_id).await`，以立即唤醒休眠中的单元任务。
+
+```rust
+// 每个 auto/fault handler 必须遵循此模式：
+state.control_runtime.upsert(runtime).await;
+state.control_runtime.notify_unit(unit_id).await;  // ← 不可省略
+let _ = state.event_manager.send(AppEvent::...);
+```
+
+---
+
+## 任务九：前端运行时集成 ✅ 已完成
+
+**文件：** `web/js/state.js`、`web/js/units.js`、`web/js/ops.js`、`web/js/app.js`
+
+**app.js 中的 WS 处理器：**
+```js
+case "UnitRuntimeChanged":
+    state.runtimes.set(payload.data.unit_id, payload.data);
+    renderUnits();       // 重新渲染单元卡片（更新徽章和按钮）
+    renderOpsUnits();    // 更新运维视图单元列表
+    syncEquipmentButtonsForUnit(runtime.unit_id, runtime.auto_enabled);
+    break;
+```
+
+**显示规则：** 前端始终使用 `runtime.display_acc_sec` 显示累计时间，不使用 `runtime.accumulated_run_sec`。
+
+```js
+// ✅ 正确
+`Acc ${Math.floor(runtime.display_acc_sec / 1000)}s`
+
+// ❌ 错误——会显示周期中途的抖动值
+`Acc ${Math.floor(runtime.accumulated_run_sec / 1000)}s`
+```
+
+**事件列表 CSS：** `.event-card` 必须设置 `flex-shrink: 0`（在 `web/styles.css` 中），防止 flex 列高度压缩导致文字重叠。
+
+---
+
+## 任务十：将引擎接入 AppState ✅ 已完成
+
+**文件：** `src/main.rs`
+
+```rust
+let control_runtime = Arc::new(control::runtime::ControlRuntimeStore::new());
+// ... 构建 AppState ...
+control::engine::start(state.clone(), control_runtime);
+```

docs/superpowers/plans/2026-03-25-dual-view-web.md

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+# 双视图 Web UI 实现计划
+
+> **适用于代理执行：** 必须使用 superpowers:subagent-driven-development（推荐）或 superpowers:executing-plans 逐任务执行。步骤使用复选框（`- [ ]`）语法跟踪进度。
+
+**目标：** 在顶部添加 **运维视图** 和 **配置视图** 两个标签页切换。运维视图以设备为核心，展示实时信号点状态（彩色信号点）及底部系统事件面板；配置视图在原有布局基础上，将底部中间面板替换为实时 SSE 日志流。
+
+**架构：** `<main>` 元素通过 CSS 类名（`grid-ops` / `grid-config`）控制面板显示。新建 `ops.js` 模块负责运维视图：加载所有单元的设备详情并渲染设备卡片，每张卡片包含 REM/RUN/FLT 三个信号点（彩色小圆点），卡片中的 DOM 元素注册到 `state.opsPointEls`（`Map<point_id, { dotEl }>`），WebSocket 处理器通过 `sigDotClass()` 实时更新信号点颜色。SSE 日志流（`/api/logs/stream`）仅在配置视图中启动，切换标签时启停。
+
+**技术栈：** Vanilla JS ES 模块、CSS Grid、SSE（`EventSource`）、现有 WebSocket 基础设施、`/api/unit/{id}/detail` 端点。
+
+---
+
+## 当前布局（参考）
+
+```
+grid（3列 × 2行）：
+  左上    → equipment-panel.html      （第1列，第1行）
+  右上    → points-panel.html         （第2-3列，第1行）
+  左下    → source-panel.html         （第1列，第2行）—— 单元 + 数据源
+  中下    → logs-panel.html           （第2列，第2行）—— 系统事件
+  右下    → chart-panel.html          （第3列，第2行）
+```
+
+## 目标布局
+
+```
+grid-config（与原布局一致）：
+  左上    → equipment-panel           （第1列，第1行）
+  右上    → points-panel              （第2-3列，第1行）
+  左下    → source-panel              （第1列，第2行）
+  中下    → log-stream-panel【新建】   （第2列，第2行）—— SSE 日志
+  右下    → chart-panel               （第3列，第2行）
+
+grid-ops（新布局）：
+  上方    → ops-panel【新建】          （第1-2列，第1行）—— 单元侧栏 + 设备卡片
+  下方    → logs-panel                （第1-2列，第2行）—— 系统事件（全宽）
+```
+
+## 文件清单
+
+| 文件 | 操作 | 用途 |
+|---|---|---|
+| `web/html/topbar.html` | 修改 | 添加 `#tabOps` / `#tabConfig` 标签按钮及批量自动按钮 |
+| `web/html/ops-panel.html` | **新建** | 运维视图：`#opsUnitList` 侧栏 + `#opsEquipmentArea` 设备卡片区 |
+| `web/html/log-stream-panel.html` | **新建** | 配置视图底部中间：SSE 日志流（`#logView`）|
+| `web/index.html` | 修改 | 引入新 partial、更新版本号 |
+| `web/js/ops.js` | **新建** | 加载设备详情、渲染设备卡片、`sigDotClass()`、`syncEquipmentButtonsForUnit()` |
+| `web/js/state.js` | 修改 | 添加 `activeView`、`opsPointEls`、`logSource`、`selectedOpsUnitId` |
+| `web/js/dom.js` | 修改 | 添加引用：`tabOps`、`tabConfig`、`batchStartAutoBtn`、`batchStopAutoBtn`、`opsUnitList`、`opsEquipmentArea`、`logView` |
+| `web/js/logs.js` | 修改 | 添加 `startLogs` / `stopLogs`；在 WS 处理器中更新 `opsPointEls` 信号点 |
+| `web/js/app.js` | 修改 | 标签切换逻辑、监听 `units-loaded` 事件、启动 ops 视图 |
+| `web/styles.css` | 修改 | 标签样式、`grid-ops`、`grid-config`、设备卡片与信号点样式 |
+
+---
+
+## 任务一：标签脚手架 + CSS 布局切换 ✅ 已完成
+
+**涉及文件：**
+- 修改：`web/html/topbar.html`
+- 修改：`web/index.html`
+- 修改：`web/js/state.js`
+- 修改：`web/js/dom.js`
+- 修改：`web/js/app.js`
+- 修改：`web/styles.css`
+
+- [x] **步骤 1：在顶栏添加标签按钮**
+
+`web/html/topbar.html` 中添加 `.tab-bar`（含 `#tabOps` / `#tabConfig`）及批量自动控制按钮（`#batchStartAutoBtn` / `#batchStopAutoBtn`）。
+
+- [x] **步骤 2：向 `web/styles.css` 添加标签与网格 CSS**
+
+添加 `.tab-bar`、`.tab-btn`、`.tab-btn.active` 样式；将原有 `.grid` 替换为 `.grid-ops` 和 `.grid-config`，分别定义列、行及面板 `grid-column/row` 赋值。
+
+- [x] **步骤 3：向 `web/js/state.js` 添加新字段**
+
+```js
+activeView: "ops",           // "ops" | "config"
+opsPointEls: new Map(),      // point_id -> { dotEl }
+logSource: null,
+selectedOpsUnitId: null,
+```
+
+- [x] **步骤 4：向 `web/js/dom.js` 添加 DOM 引用**
+
+```js
+tabOps: byId("tabOps"),
+tabConfig: byId("tabConfig"),
+batchStartAutoBtn: byId("batchStartAutoBtn"),
+batchStopAutoBtn: byId("batchStopAutoBtn"),
+opsUnitList: byId("opsUnitList"),
+opsEquipmentArea: byId("opsEquipmentArea"),
+logView: byId("logView"),
+```
+
+- [x] **步骤 5：在 `web/js/app.js` 中添加 `switchView` 函数并绑定事件**
+
+```js
+function switchView(view) {
+  state.activeView = view;
+  const main = document.querySelector("main");
+  main.className = view === "ops" ? "grid-ops" : "grid-config";
+  dom.tabOps.classList.toggle("active", view === "ops");
+  dom.tabConfig.classList.toggle("active", view === "config");
+  // 显示/隐藏配置视图专属面板（top-left/top-right/bottom-left/bottom-right/bottom-mid）
+  // 显示/隐藏运维视图专属面板（ops-main/ops-bottom）
+  if (view === "config") startLogs(); else stopLogs();
+}
+```
+
+`bindEvents` 中添加：
+```js
+dom.tabOps.addEventListener("click", () => switchView("ops"));
+dom.tabConfig.addEventListener("click", () => switchView("config"));
+```
+
+`bootstrap` 中调用：
+```js
+switchView("ops");   // 默认进入运维视图
+```
+
+- [x] **步骤 6：更新 `web/index.html`**
+
+`<main class="grid-ops">` 中引入所有 partial（含新建的 ops-panel.html、log-stream-panel.html），并更新 CSS/JS 版本号。
+
+---
+
+## 任务二：运维面板 HTML + CSS 骨架 ✅ 已完成
+
+**涉及文件：**
+- 新建：`web/html/ops-panel.html`
+- 修改：`web/styles.css`
+
+- [x] **步骤 1：新建 `web/html/ops-panel.html`**
+
+```html
+<section class="panel ops-main">
+  <div class="ops-layout">
+    <aside class="ops-unit-sidebar">
+      <div class="panel-head"><h2>控制单元</h2></div>
+      <div class="list ops-unit-list" id="opsUnitList"></div>
+    </aside>
+    <div class="ops-equipment-area" id="opsEquipmentArea">
+      <div class="muted ops-placeholder">← 选择控制单元</div>
+    </div>
+  </div>
+</section>
+```
+
+`web/html/logs-panel.html` 增加 `ops-bottom` class，使其在运维视图中作为底部全宽面板。
+
+- [x] **步骤 2：向 `web/styles.css` 添加运维视图 CSS**
+
+`.ops-layout`（flex 横向）、`.ops-unit-sidebar`（固定宽度）、`.ops-unit-list`（可滚动）、`.ops-equipment-area`（flex-wrap 卡片区）。
+
+设备卡片相关类：`.ops-eq-card`、`.ops-eq-card-head`、`.ops-signal-rows`、`.ops-signal-row`、`.ops-signal-label`、`.ops-eq-card-actions`。
+
+单元列表项相关类：`.ops-unit-item`、`.ops-unit-item-name`、`.ops-unit-item-meta`、`.ops-unit-item-actions`。
+
+信号点相关类：`.sig-dot`（灰色默认）、`.sig-dot.sig-on`（绿色）、`.sig-dot.sig-fault`（红色）、`.sig-dot.sig-warn`（黄色）。
+
+---
+
+## 任务三：ops.js —— 单元列表 + 设备卡片渲染 ✅ 已完成
+
+**涉及文件：**
+- 新建：`web/js/ops.js`
+- 修改：`web/js/app.js`、`web/js/units.js`
+
+### 实际实现说明
+
+运维视图在**初始加载时一次性加载所有单元的所有设备卡片**（`loadAllEquipmentCards`），而非等待点击单元后再加载。点击某个单元会过滤只展示该单元的设备；再次点击同一单元则取消过滤并恢复全部展示。
+
+信号点使用**彩色小圆点**（`sig-dot` 类）而非文字值+质量徽章。
+
+#### 核心函数
+
+**`sigDotClass(role, quality, valueText) → string`**（导出）
+
+根据信号质量与值计算 CSS 类名：
+- `quality !== "good"` → `"sig-dot sig-warn"`（黄色）
+- 值为 `"1"` / `"true"` / `"on"`：
+  - `role === "flt"` → `"sig-dot sig-fault"`（红色）
+  - 其他 → `"sig-dot sig-on"`（绿色）
+- 其他 → `"sig-dot"`（灰色）
+
+**`renderOpsUnits()`**（导出）
+
+遍历 `state.units`，为每个单元渲染列表项，包含：
+- 运行状态徽章（`runtimeBadge`）、启用/禁用徽章、累计时间
+- "Start Auto" / "Stop Auto" 按钮（调用 `/api/control/unit/:id/start-auto` 或 `stop-auto`）
+- 若 `runtime.manual_ack_required` 为真，显示 "Ack Fault" 按钮
+
+**`loadAllEquipmentCards()`**（导出）
+
+并发请求所有单元的 `/api/unit/{id}/detail`，将全部设备合并后调用 `renderOpsEquipments()`。
+
+**`selectOpsUnit(unitId)`**（私有）
+
+切换 `state.selectedOpsUnitId`。若取消选择，调用 `loadAllEquipmentCards()` 恢复全部展示；若选中某单元，加载该单元详情并渲染其设备。
+
+**`renderOpsEquipments(equipments)`**（私有）
+
+为每台设备渲染一张卡片，包含：
+- 卡片头：设备编码 + 类型徽章
+- 信号行：REM / RUN / FLT 三个角色，每行一个 `<span class="sig-dot ...">` 元素（`data-ops-dot` + `data-ops-role` 属性）
+- 控制按钮（仅 `coal_feeder` / `distributor`）：Start / Stop，`auto_enabled` 时禁用
+- 注册 DOM 元素：`state.opsPointEls.set(pointId, { dotEl })`
+- 若缓存中有 `point.point_monitor`，立即根据缓存值初始化信号点颜色
+
+**`startOps()`**（导出）
+
+```js
+export function startOps() {
+  renderOpsUnits();
+  loadAllEquipmentCards();
+  dom.batchStartAutoBtn?.addEventListener("click", () => {
+    apiFetch("/api/control/unit/batch-start-auto", { method: "POST" }).then(() => loadUnits()).catch(() => {});
+  });
+  dom.batchStopAutoBtn?.addEventListener("click", () => {
+    apiFetch("/api/control/unit/batch-stop-auto", { method: "POST" }).then(() => loadUnits()).catch(() => {});
+  });
+}
+```
+
+**`syncEquipmentButtonsForUnit(unitId, autoEnabled)`**（导出）
+
+WS 收到 `UnitRuntimeChanged` 时调用，同步设备卡片中 Start/Stop 按钮的 `disabled` 状态（避免重新渲染整个卡片区）：
+
+```js
+export function syncEquipmentButtonsForUnit(unitId, autoEnabled) {
+  dom.opsEquipmentArea
+    .querySelectorAll(`.ops-eq-card-actions[data-unit-id="${unitId}"]`)
+    .forEach((actions) => {
+      actions.querySelectorAll("button").forEach((btn) => {
+        btn.disabled = autoEnabled;
+        btn.title = autoEnabled ? "自动控制运行中，请先停止自动" : "";
+      });
+    });
+}
+```
+
+#### app.js 接入
+
+```js
+import { startOps, renderOpsUnits, loadAllEquipmentCards } from "./ops.js";
+
+// bootstrap 中：
+await withStatus(loadUnits());
+startOps();
+
+// 事件监听：
+document.addEventListener("equipments-updated", () => {
+  renderUnits();
+  renderOpsUnits();
+});
+document.addEventListener("units-loaded", () => {
+  renderOpsUnits();
+  if (!state.selectedOpsUnitId) loadAllEquipmentCards();
+});
+```
+
+---
+
+## 任务四：运维卡片信号点实时更新 ✅ 已完成
+
+**涉及文件：**
+- 修改：`web/js/logs.js`
+
+在 `startPointSocket` 的 WebSocket `PointNewValue` 分支中，添加运维视图信号点更新逻辑：
+
+```js
+// 运维视图信号点
+const opsEntry = state.opsPointEls.get(data.point_id);
+if (opsEntry) {
+  const { dotEl } = opsEntry;
+  const role = dotEl.dataset.opsRole;
+  import("./ops.js").then(({ sigDotClass }) => {
+    dotEl.className = sigDotClass(role, data.quality, data.value_text);
+  });
+}
+```
+
+`UnitRuntimeChanged` 分支同步更新运维单元列表和设备按钮状态：
+
+```js
+if (payload.type === "UnitRuntimeChanged") {
+  const runtime = payload.data;
+  state.runtimes.set(runtime.unit_id, runtime);
+  renderUnits();
+  import("./ops.js").then(({ renderOpsUnits, syncEquipmentButtonsForUnit }) => {
+    renderOpsUnits();
+    syncEquipmentButtonsForUnit(runtime.unit_id, runtime.auto_enabled);
+  });
+  return;
+}
+```
+
+> 注意：使用动态 `import("./ops.js")` 避免循环依赖（`ops.js` → `logs.js` → `ops.js`）。
+
+---
+
+## 任务五：配置视图的日志流面板 ✅ 已完成
+
+**涉及文件：**
+- 新建：`web/html/log-stream-panel.html`
+- 修改：`web/js/logs.js`
+- 修改：`web/js/dom.js`
+
+- [x] **步骤 1：新建 `web/html/log-stream-panel.html`**
+
+```html
+<section class="panel bottom-mid">
+  <div class="panel-head"><h2>实时日志</h2></div>
+  <div class="log" id="logView"></div>
+</section>
+```
+
+- [x] **步骤 2：在 `web/js/logs.js` 中实现 `startLogs` / `stopLogs`**
+
+```js
+export function startLogs() {
+  if (state.logSource) return;
+  state.logSource = new EventSource("/api/logs/stream");
+  state.logSource.addEventListener("log", (event) => {
+    const data = JSON.parse(event.data);
+    (data.lines || []).forEach(appendLog);
+  });
+  state.logSource.addEventListener("error", () => appendLog("[log stream error]"));
+}
+
+export function stopLogs() {
+  if (state.logSource) {
+    state.logSource.close();
+    state.logSource = null;
+  }
+}
+```
+
+`startLogs()` 是幂等的（有 `if (state.logSource) return` 守卫），可安全重复调用。
+
+---
+
+## 任务六：收尾、清理与样式完善 ✅ 已完成
+
+- [x] 补充日志面板 CSS（`.log`、`.log-line`、`.level-info/warn/error`）
+- [x] `web/js/units.js` 在 `loadUnits()` 末尾派发 `units-loaded` 事件
+- [x] 更新 `web/index.html` 版本号
+- [x] 最终验证：标签切换、信号点实时更新、Start/Stop 控制按钮、SSE 日志流
+
+---
+
+## 实现者注意事项
+
+- `state.opsPointEls` 在每次重新渲染设备卡片时清空重建，不存在陈旧引用。
+- `syncEquipmentButtonsForUnit` 仅更新按钮的 `disabled` 状态，避免每次运行时更新都重渲染整个卡片区。
+- 运维视图默认展示**所有单元的所有设备**，点击单元后过滤；取消选择后恢复全部展示。
+- 设备卡片头部 `data-unit-id` 属性供 `syncEquipmentButtonsForUnit` 精确定位按钮。
+- 后端 `/api/unit/{id}/detail` 响应中 `point.point_monitor` 字段包含最新缓存值，可用于初始渲染信号点颜色，无需等待 WebSocket 推送。

src/control/command.rs

@@ -1,7 +1,6 @@
 use crate::{
     connection::{BatchSetPointValueReq, ConnectionManager, SetPointValueReqItem},
     telemetry::ValueType,
-    AppState,
 };
 use serde_json::json;
 use std::sync::Arc;
@@ -43,143 +42,6 @@ pub async fn send_pulse_command(
     Ok(())
 }
 
-/// Simulate RUN signal feedback after a command when SIMULATE_PLC=true.
-///
-/// Strategy:
-/// 1. Try writing the desired value to the RUN point via the normal OPC UA write path.
-///    If the proxy accepts the write, `write_point_values_batch` will emit a local
-///    `PointNewValue` event that updates the cache and WebSocket automatically.
-/// 2. If the write is rejected (proxy has no write target or returns an error),
-///    fall back to directly patching the local monitor cache and broadcasting over WS.
-pub async fn simulate_run_feedback(state: &AppState, equipment_id: Uuid, run_on: bool) {
-    let role_points =
-        match crate::service::get_equipment_role_points(&state.pool, equipment_id).await {
-            Ok(v) => v,
-            Err(e) => {
-                tracing::warn!("simulate_run_feedback: db error: {}", e);
-                return;
-            }
-        };
-    let run_point = match role_points.iter().find(|p| p.signal_role == "run") {
-        Some(p) => p.clone(),
-        None => return,
-    };
-
-    // Determine the write value based on the current known value_type for the point.
-    let write_json = {
-        let guard = state
-            .connection_manager
-            .get_point_monitor_data_read_guard()
-            .await;
-        match guard
-            .get(&run_point.point_id)
-            .and_then(|m| m.value_type.as_ref())
-        {
-            Some(crate::telemetry::ValueType::Int) | Some(crate::telemetry::ValueType::UInt) => {
-                serde_json::json!(if run_on { 1 } else { 0 })
-            }
-            _ => serde_json::json!(run_on),
-        }
-    };
-
-    // Try writing to the proxy server first.
-    let write_ok = match state
-        .connection_manager
-        .write_point_values_batch(crate::connection::BatchSetPointValueReq {
-            items: vec![crate::connection::SetPointValueReqItem {
-                point_id: run_point.point_id,
-                value: write_json,
-            }],
-        })
-        .await
-    {
-        Ok(res) => res.success,
-        Err(e) => {
-            tracing::debug!("simulate_run_feedback: write attempt failed: {}", e);
-            false
-        }
-    };
-
-    if write_ok {
-        // write_point_values_batch already emitted PointNewValue; nothing more to do.
-        tracing::info!(
-            "simulate_run_feedback: wrote run={} for equipment={} via OPC UA",
-            run_on,
-            equipment_id
-        );
-        return;
-    }
-
-    // Fallback: patch the local cache and push over WebSocket.
-    tracing::debug!(
-        "simulate_run_feedback: OPC UA write rejected, falling back to cache patch for equipment={}",
-        equipment_id
-    );
-
-    let (value, value_type, value_text) = {
-        let guard = state
-            .connection_manager
-            .get_point_monitor_data_read_guard()
-            .await;
-        match guard
-            .get(&run_point.point_id)
-            .and_then(|m| m.value_type.as_ref())
-        {
-            Some(crate::telemetry::ValueType::Int) => (
-                crate::telemetry::DataValue::Int(if run_on { 1 } else { 0 }),
-                Some(crate::telemetry::ValueType::Int),
-                Some(if run_on { "1" } else { "0" }.to_string()),
-            ),
-            Some(crate::telemetry::ValueType::UInt) => (
-                crate::telemetry::DataValue::UInt(if run_on { 1 } else { 0 }),
-                Some(crate::telemetry::ValueType::UInt),
-                Some(if run_on { "1" } else { "0" }.to_string()),
-            ),
-            _ => (
-                crate::telemetry::DataValue::Bool(run_on),
-                Some(crate::telemetry::ValueType::Bool),
-                Some(run_on.to_string()),
-            ),
-        }
-    };
-
-    let monitor = crate::telemetry::PointMonitorInfo {
-        protocol: "simulation".to_string(),
-        source_id: uuid::Uuid::nil(),
-        point_id: run_point.point_id,
-        client_handle: 0,
-        scan_mode: crate::model::ScanMode::Poll,
-        timestamp: Some(chrono::Utc::now()),
-        quality: crate::telemetry::PointQuality::Good,
-        value: Some(value),
-        value_type,
-        value_text,
-        old_value: None,
-        old_timestamp: None,
-        value_changed: true,
-    };
-
-    if let Err(e) = state
-        .connection_manager
-        .update_point_monitor_data(monitor.clone())
-        .await
-    {
-        tracing::warn!("simulate_run_feedback: cache update failed: {}", e);
-        return;
-    }
-
-    let _ = state
-        .ws_manager
-        .send_to_public(crate::websocket::WsMessage::PointNewValue(monitor))
-        .await;
-
-    tracing::info!(
-        "simulate_run_feedback: cache-patched run={} for equipment={}",
-        run_on,
-        equipment_id
-    );
-}
-
 fn pulse_value(high: bool, value_type: Option<&ValueType>) -> serde_json::Value {
     match value_type {
         Some(ValueType::Bool) => serde_json::Value::Bool(high),

src/control/engine.rs

@@ -1,7 +1,8 @@
 use std::collections::HashMap;
 use std::sync::Arc;
 
-use chrono::Utc;
+use tokio::sync::Notify;
+use tokio::time::Duration;
 use uuid::Uuid;
 
 use crate::{
@@ -11,383 +12,416 @@ use crate::{
     },
     event::AppEvent,
     service::EquipmentRolePoint,
-    telemetry::{DataValue, PointMonitorInfo, PointQuality},
+    telemetry::{PointMonitorInfo, PointQuality},
     websocket::WsMessage,
     AppState,
 };
 
+/// Start the engine: a supervisor spawns one async task per enabled unit.
 pub fn start(state: AppState, runtime_store: Arc<ControlRuntimeStore>) {
     tokio::spawn(async move {
-        let mut ticker = tokio::time::interval(std::time::Duration::from_millis(500));
-        ticker.set_missed_tick_behavior(tokio::time::MissedTickBehavior::Skip);
-        loop {
-            ticker.tick().await;
-            tick_all_units(&state, &runtime_store).await;
-        }
+        supervise(state, runtime_store).await;
     });
 }
 
-async fn tick_all_units(state: &AppState, store: &ControlRuntimeStore) {
-    let units = match crate::service::get_all_enabled_units(&state.pool).await {
-        Ok(u) => u,
-        Err(e) => {
-            tracing::error!("Engine: failed to load units: {}", e);
-            return;
-        }
-    };
+/// Supervisor: scans for enabled units every 10 s and ensures each has a running task.
+/// Uses JoinHandle to detect exited tasks so disabled-then-re-enabled units are restarted.
+async fn supervise(state: AppState, store: Arc<ControlRuntimeStore>) {
+    let mut tasks: HashMap<Uuid, tokio::task::JoinHandle<()>> = HashMap::new();
+    let mut interval = tokio::time::interval(Duration::from_secs(10));
+    interval.set_missed_tick_behavior(tokio::time::MissedTickBehavior::Skip);
+
+    loop {
+        interval.tick().await;
+        match crate::service::get_all_enabled_units(&state.pool).await {
+            Ok(units) => {
                 for unit in units {
-        tick_unit(state, store, &unit).await;
+                    let needs_spawn = tasks
+                        .get(&unit.id)
+                        .map_or(true, |h| h.is_finished());
+                    if needs_spawn {
+                        let s = state.clone();
+                        let st = store.clone();
+                        let handle = tokio::spawn(async move { unit_task(s, st, unit.id).await; });
+                        tasks.insert(unit.id, handle);
+                    }
+                }
+            }
+            Err(e) => tracing::error!("Engine supervisor: failed to load units: {}", e),
+        }
     }
 }
 
-async fn tick_unit(
+// ── Per-unit task ─────────────────────────────────────────────────────────────
+
+async fn unit_task(state: AppState, store: Arc<ControlRuntimeStore>, unit_id: Uuid) {
+    let notify = store.get_or_create_notify(unit_id).await;
+
+    // Fault/comm check ticker — still need periodic polling of point monitor data.
+    let mut fault_tick = tokio::time::interval(Duration::from_millis(500));
+    fault_tick.set_missed_tick_behavior(tokio::time::MissedTickBehavior::Skip);
+
+    loop {
+        // Reload unit config on each iteration to detect disable/delete.
+        let unit = match crate::service::get_unit_by_id(&state.pool, unit_id).await {
+            Ok(Some(u)) if u.enabled => u,
+            Ok(_) => {
+                tracing::info!("Engine: unit {} disabled or deleted, task exiting", unit_id);
+                return;
+            }
+            Err(e) => {
+                tracing::error!("Engine: unit {} config reload failed: {}", unit_id, e);
+                tokio::time::sleep(Duration::from_secs(5)).await;
+                continue;
+            }
+        };
+
+        // ── Fault / comm check ────────────────────────────────────────────────
+        let (kind_roles, kind_eq_ids, all_roles) = match load_equipment_maps(&state, unit_id).await {
+            Ok(maps) => maps,
+            Err(e) => {
+                tracing::error!("Engine: unit {} equipment load failed: {}", unit_id, e);
+                tokio::time::sleep(Duration::from_secs(5)).await;
+                continue;
+            }
+        };
+
+        let mut runtime = store.get_or_init(unit_id).await;
+        if check_fault_comm(&state, &mut runtime, &unit, &all_roles).await {
+            store.upsert(runtime.clone()).await;
+            push_ws(&state, &runtime).await;
+        }
+
+        // ── Wait when not active ──────────────────────────────────────────────
+        if !runtime.auto_enabled || runtime.fault_locked || runtime.comm_locked || runtime.manual_ack_required {
+            tokio::select! {
+                _ = fault_tick.tick() => {}
+                _ = notify.notified() => {
+                    // Push fresh runtime immediately so the frontend reflects the change
+                    // (e.g. auto_enabled toggled) without waiting for the next state transition.
+                    let runtime = store.get_or_init(unit_id).await;
+                    push_ws(&state, &runtime).await;
+                }
+            }
+            continue;
+        }
+
+        // ── State machine step ────────────────────────────────────────────────
+        match runtime.state {
+            UnitRuntimeState::Stopped => {
+                // Wait stop_time_sec (0 = skip wait, start immediately).
+                if !wait_phase(&state, &store, &unit, &all_roles, &notify, &mut fault_tick).await {
+                    continue;
+                }
+                // Send feeder start command.
+                let monitor = state.connection_manager.get_point_monitor_data_read_guard().await;
+                let cmd = kind_roles.get("coal_feeder").and_then(|r| find_cmd(r, "start_cmd", &monitor));
+                drop(monitor);
+                if let Some((pid, vt)) = cmd {
+                    if let Err(e) = send_pulse_command(&state.connection_manager, pid, vt.as_ref(), 300).await {
+                        tracing::warn!("Engine: start feeder failed for unit {}: {}", unit_id, e);
+                        continue;
+                    }
+                    if state.config.simulate_plc {
+                        if let Some(eq_id) = kind_eq_ids.get("coal_feeder").copied() {
+                            crate::control::simulate::simulate_run_feedback(&state, eq_id, true).await;
+                        }
+                    }
+                }
+                let mut runtime = store.get_or_init(unit_id).await;
+                runtime.state = UnitRuntimeState::Running;
+                store.upsert(runtime.clone()).await;
+                push_ws(&state, &runtime).await;
+            }
+
+            UnitRuntimeState::Running => {
+                // Wait run_time_sec.  run_time_sec == 0 means run without a time limit
+                // (relies on acc_time_sec to eventually stop).  Treat as a very long phase.
+                let secs = if unit.run_time_sec > 0 { unit.run_time_sec } else { i32::MAX };
+                let unit_for_wait = crate::model::ControlUnit { run_time_sec: secs, ..unit.clone() };
+                if !wait_phase(&state, &store, &unit_for_wait, &all_roles, &notify, &mut fault_tick).await {
+                    continue;
+                }
+                // Stop feeder.
+                let monitor = state.connection_manager.get_point_monitor_data_read_guard().await;
+                let cmd = kind_roles.get("coal_feeder").and_then(|r| find_cmd(r, "stop_cmd", &monitor));
+                drop(monitor);
+                if let Some((pid, vt)) = cmd {
+                    if let Err(e) = send_pulse_command(&state.connection_manager, pid, vt.as_ref(), 300).await {
+                        tracing::warn!("Engine: stop feeder failed for unit {}: {}", unit_id, e);
+                        continue;
+                    }
+                    if state.config.simulate_plc {
+                        if let Some(eq_id) = kind_eq_ids.get("coal_feeder").copied() {
+                            crate::control::simulate::simulate_run_feedback(&state, eq_id, false).await;
+                        }
+                    }
+                }
+                let mut runtime = store.get_or_init(unit_id).await;
+                runtime.accumulated_run_sec += secs as i64 * 1000;
+                runtime.display_acc_sec = runtime.accumulated_run_sec;
+
+                if unit.acc_time_sec > 0 && runtime.accumulated_run_sec >= unit.acc_time_sec as i64 * 1000 {
+                    // Accumulated threshold reached — start distributor.
+                    let monitor = state.connection_manager.get_point_monitor_data_read_guard().await;
+                    let dist_cmd = kind_roles.get("distributor").and_then(|r| find_cmd(r, "start_cmd", &monitor));
+                    drop(monitor);
+                    if let Some((pid, vt)) = dist_cmd {
+                        if let Err(e) = send_pulse_command(&state.connection_manager, pid, vt.as_ref(), 300).await {
+                            tracing::warn!("Engine: start distributor failed for unit {}: {}", unit_id, e);
+                        } else if state.config.simulate_plc {
+                            if let Some(eq_id) = kind_eq_ids.get("distributor").copied() {
+                                crate::control::simulate::simulate_run_feedback(&state, eq_id, true).await;
+                            }
+                        }
+                    }
+                    runtime.state = UnitRuntimeState::DistributorRunning;
+                } else {
+                    runtime.state = UnitRuntimeState::Stopped;
+                }
+                store.upsert(runtime.clone()).await;
+                push_ws(&state, &runtime).await;
+            }
+
+            UnitRuntimeState::DistributorRunning => {
+                // Wait bl_time_sec then stop distributor.
+                if !wait_phase(&state, &store, &unit, &all_roles, &notify, &mut fault_tick).await {
+                    continue;
+                }
+                let monitor = state.connection_manager.get_point_monitor_data_read_guard().await;
+                let cmd = kind_roles.get("distributor").and_then(|r| find_cmd(r, "stop_cmd", &monitor));
+                drop(monitor);
+                if let Some((pid, vt)) = cmd {
+                    if let Err(e) = send_pulse_command(&state.connection_manager, pid, vt.as_ref(), 300).await {
+                        tracing::warn!("Engine: stop distributor failed for unit {}: {}", unit_id, e);
+                        continue;
+                    }
+                    if state.config.simulate_plc {
+                        if let Some(eq_id) = kind_eq_ids.get("distributor").copied() {
+                            crate::control::simulate::simulate_run_feedback(&state, eq_id, false).await;
+                        }
+                    }
+                }
+                let mut runtime = store.get_or_init(unit_id).await;
+                runtime.accumulated_run_sec = 0;
+                runtime.display_acc_sec = 0;
+                runtime.state = UnitRuntimeState::Stopped;
+                store.upsert(runtime.clone()).await;
+                push_ws(&state, &runtime).await;
+            }
+
+            UnitRuntimeState::FaultLocked | UnitRuntimeState::CommLocked => {
+                tokio::select! {
+                    _ = fault_tick.tick() => {}
+                    _ = notify.notified() => {}
+                }
+            }
+        }
+    }
+}
+
+// ── Helpers ───────────────────────────────────────────────────────────────────
+
+/// Sleep for the duration appropriate to the *current* state, interrupting every
+/// 500 ms to re-check fault/comm.  Returns `true` when the full time elapsed,
+/// `false` if the phase was interrupted (auto disabled, fault, or comm lock).
+async fn wait_phase(
     state: &AppState,
     store: &ControlRuntimeStore,
     unit: &crate::model::ControlUnit,
-) {
-    let mut runtime = store.get_or_init(unit.id).await;
-
-    // ── Load equipment role-point maps by kind ───────────────
-    let equipment_list = match crate::service::get_equipment_by_unit_id(&state.pool, unit.id).await {
-        Ok(e) => e,
-        Err(e) => {
-            tracing::error!(
-                "Engine: equipment load failed for unit {}: {}",
-                unit.id,
-                e
-            );
-            return;
-        }
+    all_roles: &[(Uuid, HashMap<String, EquipmentRolePoint>)],
+    notify: &Arc<Notify>,
+    fault_tick: &mut tokio::time::Interval,
+) -> bool {
+    let secs = match store.get_or_init(unit.id).await.state {
+        UnitRuntimeState::Stopped => unit.stop_time_sec,
+        UnitRuntimeState::Running => unit.run_time_sec,
+        UnitRuntimeState::DistributorRunning => unit.bl_time_sec,
+        _ => return false,
     };
-
-    // kind -> role -> EquipmentRolePoint  (first equipment per kind wins)
-    let mut kind_roles: HashMap<String, HashMap<String, EquipmentRolePoint>> = HashMap::new();
-    // kind -> equipment id  (first equipment per kind)
-    let mut kind_eq_ids: HashMap<String, Uuid> = HashMap::new();
-    // all role maps for fault/comm scanning across all equipment
-    let mut all_roles: Vec<(Uuid, HashMap<String, EquipmentRolePoint>)> = Vec::new();
-
-    for equip in &equipment_list {
-        match crate::service::get_equipment_role_points(&state.pool, equip.id).await {
-            Ok(role_points) => {
-                let role_map: HashMap<String, EquipmentRolePoint> = role_points
-                    .into_iter()
-                    .map(|rp| (rp.signal_role.clone(), rp))
-                    .collect();
-
-                if let Some(kind) = &equip.kind {
-                    if kind_roles.contains_key(kind.as_str()) {
-                        tracing::warn!(
-                            "Engine: unit {} has multiple {} equipment; using first",
-                            unit.id,
-                            kind
-                        );
-                    } else {
-                        kind_roles.insert(kind.clone(), role_map.clone());
-                        kind_eq_ids.insert(kind.clone(), equip.id);
+    if secs <= 0 {
+        return true;
     }
+    let deadline = tokio::time::Instant::now() + Duration::from_secs(secs as u64);
+    loop {
+        let completed = tokio::select! {
+            _ = tokio::time::sleep_until(deadline) => true,
+            _ = fault_tick.tick() => false,
+            _ = notify.notified() => false,
+        };
+        if completed {
+            return true;
         }
-                all_roles.push((equip.id, role_map));
-            }
-            Err(e) => {
-                tracing::warn!(
-                    "Engine: role points load failed for equipment {}: {}",
-                    equip.id,
-                    e
-                );
-            }
-        }
-    }
-
-    let monitor_guard = state
-        .connection_manager
-        .get_point_monitor_data_read_guard()
-        .await;
-
-    // ── Communication check ──────────────────────────────────
-    let any_bad_quality = all_roles.iter().flat_map(|(_, r)| r.values()).any(|rp| {
-        monitor_guard
-            .get(&rp.point_id)
-            .map(|m| m.quality != PointQuality::Good)
-            .unwrap_or(false)
-    });
-
-    let prev_comm = runtime.comm_locked;
-    runtime.comm_locked = any_bad_quality;
-    if !prev_comm && runtime.comm_locked {
-        let _ = state
-            .event_manager
-            .send(AppEvent::CommLocked { unit_id: unit.id });
-    } else if prev_comm && !runtime.comm_locked {
-        let _ = state
-            .event_manager
-            .send(AppEvent::CommRecovered { unit_id: unit.id });
-    }
-
-    // ── Fault check ──────────────────────────────────────────
-    let any_flt = all_roles.iter().any(|(_, roles)| {
-        roles
-            .get("flt")
-            .and_then(|rp| monitor_guard.get(&rp.point_id))
-            .map(|m| monitor_value_as_bool(m))
-            .unwrap_or(false)
-    });
-
-    let prev_flt = runtime.flt_active;
-    runtime.flt_active = any_flt;
-
-    if any_flt && !runtime.fault_locked {
-        // Find which equipment triggered the fault
-        let flt_eq_id = all_roles
-            .iter()
-            .find(|(_, roles)| {
-                roles
-                    .get("flt")
-                    .and_then(|rp| monitor_guard.get(&rp.point_id))
-                    .map(|m| monitor_value_as_bool(m))
-                    .unwrap_or(false)
-            })
-            .map(|(eq_id, _)| *eq_id)
-            .unwrap_or(Uuid::nil());
-
-        runtime.fault_locked = true;
-        let _ = state.event_manager.send(AppEvent::FaultLocked {
-            unit_id: unit.id,
-            equipment_id: flt_eq_id,
-        });
-        if runtime.auto_enabled {
-            runtime.auto_enabled = false;
-            let _ = state
-                .event_manager
-                .send(AppEvent::AutoControlStopped { unit_id: unit.id });
-        }
-    }
-
-    // FLT just cleared → require manual ack if unit is configured that way
-    if prev_flt && !any_flt && runtime.fault_locked {
-        if unit.require_manual_ack_after_fault {
-            runtime.manual_ack_required = true;
-        } else {
-            // Auto-clear fault lock
-            runtime.fault_locked = false;
-        }
-    }
-
-    drop(monitor_guard);
-
-    // ── State machine tick ───────────────────────────────────
-    if runtime.auto_enabled && !runtime.fault_locked && !runtime.comm_locked {
-        let now = Utc::now();
-        // Accumulate in milliseconds to avoid sub-second truncation
-        let delta_ms = runtime
-            .last_tick_at
-            .map(|t| (now - t).num_milliseconds().max(0))
-            .unwrap_or(0);
-
-        let prev_state = runtime.state.clone();
-        tick_state_machine(state, &mut runtime, unit, &kind_roles, &kind_eq_ids, delta_ms).await;
-        if runtime.state != prev_state {
-            let _ = state.event_manager.send(AppEvent::UnitStateChanged {
-                unit_id: unit.id,
-                from_state: format!("{:?}", prev_state),
-                to_state: format!("{:?}", runtime.state),
-            });
-        }
-    }
-
-    runtime.last_tick_at = Some(Utc::now());
-
+        // Re-check fault/comm mid-phase.
+        let mut runtime = store.get_or_init(unit.id).await;
+        if check_fault_comm(state, &mut runtime, unit, all_roles).await {
             store.upsert(runtime.clone()).await;
+            push_ws(state, &runtime).await;
+        }
+        if !runtime.auto_enabled || runtime.fault_locked || runtime.comm_locked || runtime.manual_ack_required {
+            return false;
+        }
+    }
+}
+
+async fn push_ws(state: &AppState, runtime: &UnitRuntime) {
     if let Err(e) = state
         .ws_manager
-        .send_to_public(WsMessage::UnitRuntimeChanged(runtime))
+        .send_to_public(WsMessage::UnitRuntimeChanged(runtime.clone()))
         .await
     {
         tracing::debug!("Engine: WS push skipped (no subscribers): {}", e);
     }
 }
 
-/// Drive one state-machine tick for a unit.
-/// All elapsed counters accumulate in **milliseconds**; comparisons use `*_time_sec * 1000`.
-async fn tick_state_machine(
+/// Check fault and comm status, mutate runtime, fire events.
+/// Returns `true` if any field changed.
+async fn check_fault_comm(
     state: &AppState,
     runtime: &mut UnitRuntime,
     unit: &crate::model::ControlUnit,
-    kind_roles: &HashMap<String, HashMap<String, EquipmentRolePoint>>,
-    kind_eq_ids: &HashMap<String, Uuid>,
-    delta_ms: i64,
-) {
-    let feeder_roles = kind_roles.get("coal_feeder");
-    let dist_roles = kind_roles.get("distributor");
-    let feeder_eq_id = kind_eq_ids.get("coal_feeder").copied();
-    let dist_eq_id = kind_eq_ids.get("distributor").copied();
-
-    match runtime.state {
-        UnitRuntimeState::Stopped => {
-            // stop_time_sec == 0 means start immediately (no wait)
-            if unit.stop_time_sec > 0 {
-                runtime.current_stop_elapsed_sec += delta_ms; // field holds ms
-                if runtime.current_stop_elapsed_sec < unit.stop_time_sec as i64 * 1000 {
-                    return;
-                }
-            }
+    all_roles: &[(Uuid, HashMap<String, EquipmentRolePoint>)],
+) -> bool {
     let monitor = state
         .connection_manager
         .get_point_monitor_data_read_guard()
         .await;
-            if let Some((pid, vt)) =
-                feeder_roles.and_then(|r| find_cmd(r, "start_cmd", &monitor))
-            {
+
+    let any_bad = all_roles.iter().flat_map(|(_, r)| r.values()).any(|rp| {
+        monitor
+            .get(&rp.point_id)
+            .map(|m| m.quality != PointQuality::Good)
+            .unwrap_or(false)
+    });
+
+    let any_flt = all_roles.iter().any(|(_, roles)| {
+        roles
+            .get("flt")
+            .and_then(|rp| monitor.get(&rp.point_id))
+            .map(|m| super::monitor_value_as_bool(m))
+            .unwrap_or(false)
+    });
+
+    let flt_eq_id = if any_flt && !runtime.fault_locked {
+        all_roles
+            .iter()
+            .find(|(_, roles)| {
+                roles
+                    .get("flt")
+                    .and_then(|rp| monitor.get(&rp.point_id))
+                    .map(|m| super::monitor_value_as_bool(m))
+                    .unwrap_or(false)
+            })
+            .map(|(eq_id, _)| *eq_id)
+    } else {
+        None
+    };
+
     drop(monitor);
-                if let Err(e) =
-                    send_pulse_command(&state.connection_manager, pid, vt.as_ref(), 300).await
-                {
-                    tracing::warn!("Engine: auto start coal_feeder failed: {}", e);
-                    return;
+
+    let prev_comm = runtime.comm_locked;
+    let prev_flt = runtime.flt_active;
+    let prev_fault_locked = runtime.fault_locked;
+    let prev_auto = runtime.auto_enabled;
+    let prev_ack = runtime.manual_ack_required;
+
+    runtime.comm_locked = any_bad;
+    runtime.flt_active = any_flt;
+
+    if !prev_comm && runtime.comm_locked {
+        let _ = state.event_manager.send(AppEvent::CommLocked { unit_id: unit.id });
+    } else if prev_comm && !runtime.comm_locked {
+        let _ = state.event_manager.send(AppEvent::CommRecovered { unit_id: unit.id });
     }
-                if state.config.simulate_plc {
-                    if let Some(eq_id) = feeder_eq_id {
-                        crate::control::command::simulate_run_feedback(state, eq_id, true).await;
-                    }
-                }
-                runtime.state = UnitRuntimeState::Running;
-                runtime.current_stop_elapsed_sec = 0;
-                runtime.current_run_elapsed_sec = 0;
+
+    if let Some(eq_id) = flt_eq_id {
+        runtime.fault_locked = true;
+        let _ = state.event_manager.send(AppEvent::FaultLocked { unit_id: unit.id, equipment_id: eq_id });
+        if runtime.auto_enabled {
+            runtime.auto_enabled = false;
+            let _ = state.event_manager.send(AppEvent::AutoControlStopped { unit_id: unit.id });
         }
     }
 
-        UnitRuntimeState::Running => {
-            runtime.current_run_elapsed_sec += delta_ms;
-            runtime.accumulated_run_sec += delta_ms;
-
-            // Check RunTime first — stop feeder before considering distributor trigger
-            if unit.run_time_sec > 0
-                && runtime.current_run_elapsed_sec >= unit.run_time_sec as i64 * 1000
-            {
-                let monitor = state
-                    .connection_manager
-                    .get_point_monitor_data_read_guard()
-                    .await;
-                if let Some((pid, vt)) =
-                    feeder_roles.and_then(|r| find_cmd(r, "stop_cmd", &monitor))
-                {
-                    drop(monitor);
-                    if let Err(e) =
-                        send_pulse_command(&state.connection_manager, pid, vt.as_ref(), 300).await
-                    {
-                        tracing::warn!("Engine: auto stop coal_feeder failed: {}", e);
-                        return;
-                    }
-                    if state.config.simulate_plc {
-                        if let Some(eq_id) = feeder_eq_id {
-                            crate::control::command::simulate_run_feedback(state, eq_id, false)
-                                .await;
-                        }
-                    }
-                    runtime.state = UnitRuntimeState::Stopped;
-                    runtime.current_run_elapsed_sec = 0;
-                    runtime.current_stop_elapsed_sec = 0;
-                }
-                return;
-            }
-
-            // Check AccTime — stop feeder then trigger distributor
-            if unit.acc_time_sec > 0
-                && runtime.accumulated_run_sec >= unit.acc_time_sec as i64 * 1000
-            {
-                let monitor = state
-                    .connection_manager
-                    .get_point_monitor_data_read_guard()
-                    .await;
-                if let Some((pid, vt)) =
-                    feeder_roles.and_then(|r| find_cmd(r, "stop_cmd", &monitor))
-                {
-                    drop(monitor);
-                    if let Err(e) =
-                        send_pulse_command(&state.connection_manager, pid, vt.as_ref(), 300).await
-                    {
-                        tracing::warn!("Engine: stop coal_feeder before distributor failed: {}", e);
-                        return;
-                    }
-                    if state.config.simulate_plc {
-                        if let Some(eq_id) = feeder_eq_id {
-                            crate::control::command::simulate_run_feedback(state, eq_id, false)
-                                .await;
-                        }
-                    }
-                }
-                runtime.state = UnitRuntimeState::DistributorRunning;
-                runtime.distributor_run_elapsed_sec = 0;
+    if prev_flt && !any_flt && runtime.fault_locked {
+        if unit.require_manual_ack_after_fault {
+            runtime.manual_ack_required = true;
+        } else {
+            runtime.fault_locked = false;
         }
     }
 
-        UnitRuntimeState::DistributorRunning => {
-            // First tick in this state (distributor_run_elapsed_sec == 0): send start pulse then return.
-            // Time advance happens on subsequent ticks.
-            if runtime.distributor_run_elapsed_sec == 0 {
-                let monitor = state
-                    .connection_manager
-                    .get_point_monitor_data_read_guard()
-                    .await;
-                if let Some((pid, vt)) =
-                    dist_roles.and_then(|r| find_cmd(r, "start_cmd", &monitor))
-                {
-                    drop(monitor);
-                    if let Err(e) =
-                        send_pulse_command(&state.connection_manager, pid, vt.as_ref(), 300).await
-                    {
-                        tracing::warn!("Engine: auto start distributor failed: {}", e);
-                    } else if state.config.simulate_plc {
-                        if let Some(eq_id) = dist_eq_id {
-                            crate::control::command::simulate_run_feedback(state, eq_id, true)
-                                .await;
-                        }
-                    }
-                }
-                // Mark as "started" by advancing to 1ms so this branch won't re-fire
-                runtime.distributor_run_elapsed_sec = 1;
-                return;
-            }
-
-            runtime.distributor_run_elapsed_sec += delta_ms;
-
-            if unit.bl_time_sec > 0
-                && runtime.distributor_run_elapsed_sec >= unit.bl_time_sec as i64 * 1000
-            {
-                let monitor = state
-                    .connection_manager
-                    .get_point_monitor_data_read_guard()
-                    .await;
-                if let Some((pid, vt)) =
-                    dist_roles.and_then(|r| find_cmd(r, "stop_cmd", &monitor))
-                {
-                    drop(monitor);
-                    if let Err(e) =
-                        send_pulse_command(&state.connection_manager, pid, vt.as_ref(), 300).await
-                    {
-                        tracing::warn!("Engine: auto stop distributor failed: {}", e);
-                        return;
-                    }
-                    if state.config.simulate_plc {
-                        if let Some(eq_id) = dist_eq_id {
-                            crate::control::command::simulate_run_feedback(state, eq_id, false)
-                                .await;
-                        }
-                    }
-                }
-                runtime.accumulated_run_sec = 0;
-                runtime.distributor_run_elapsed_sec = 0;
-                runtime.state = UnitRuntimeState::Stopped;
-                runtime.current_stop_elapsed_sec = 0;
-            }
-        }
-
-        UnitRuntimeState::FaultLocked | UnitRuntimeState::CommLocked => {}
-    }
+    runtime.comm_locked != prev_comm
+        || runtime.flt_active != prev_flt
+        || runtime.fault_locked != prev_fault_locked
+        || runtime.auto_enabled != prev_auto
+        || runtime.manual_ack_required != prev_ack
 }
 
-/// Find a command point by role in a single equipment's role map.
-/// Returns `None` if REM==0 or FLT==1 or quality is bad.
+type EquipMaps = (
+    HashMap<String, HashMap<String, EquipmentRolePoint>>,
+    HashMap<String, Uuid>,
+    Vec<(Uuid, HashMap<String, EquipmentRolePoint>)>,
+);
+
+async fn load_equipment_maps(state: &AppState, unit_id: Uuid) -> Result<EquipMaps, sqlx::Error> {
+    let equipment_list = crate::service::get_equipment_by_unit_id(&state.pool, unit_id).await?;
+    let equipment_ids: Vec<Uuid> = equipment_list.iter().map(|equip| equip.id).collect();
+    let role_point_rows =
+        crate::service::get_signal_role_points_batch(&state.pool, &equipment_ids).await?;
+    let mut role_points_by_equipment: HashMap<Uuid, Vec<EquipmentRolePoint>> = HashMap::new();
+    for row in role_point_rows {
+        role_points_by_equipment
+            .entry(row.equipment_id)
+            .or_default()
+            .push(EquipmentRolePoint {
+                point_id: row.point_id,
+                signal_role: row.signal_role,
+            });
+    }
+
+    Ok(build_equipment_maps(
+        unit_id,
+        &equipment_list,
+        role_points_by_equipment,
+    ))
+}
+
+fn build_equipment_maps(
+    unit_id: Uuid,
+    equipment_list: &[crate::model::Equipment],
+    mut role_points_by_equipment: HashMap<Uuid, Vec<EquipmentRolePoint>>,
+) -> EquipMaps {
+    let mut kind_roles: HashMap<String, HashMap<String, EquipmentRolePoint>> = HashMap::new();
+    let mut kind_eq_ids: HashMap<String, Uuid> = HashMap::new();
+    let mut all_roles: Vec<(Uuid, HashMap<String, EquipmentRolePoint>)> = Vec::new();
+
+    for equip in equipment_list {
+        let role_map: HashMap<String, EquipmentRolePoint> = role_points_by_equipment
+            .remove(&equip.id)
+            .unwrap_or_default()
+            .into_iter()
+            .map(|rp| (rp.signal_role.clone(), rp))
+            .collect();
+
+        if let Some(kind) = &equip.kind {
+            if !kind_roles.contains_key(kind.as_str()) {
+                kind_roles.insert(kind.clone(), role_map.clone());
+                kind_eq_ids.insert(kind.clone(), equip.id);
+            } else {
+                tracing::warn!(
+                    "Engine: unit {} has multiple {} equipment; using first",
+                    unit_id, kind
+                );
+            }
+        }
+        all_roles.push((equip.id, role_map));
+    }
+
+    (kind_roles, kind_eq_ids, all_roles)
+}
+
+/// Find a command point by role.  Returns `None` if REM==0, FLT==1, or quality is bad.
 fn find_cmd(
     roles: &HashMap<String, EquipmentRolePoint>,
     role: &str,
@@ -398,13 +432,13 @@ fn find_cmd(
     let rem_ok = roles
         .get("rem")
         .and_then(|rp| monitor.get(&rp.point_id))
-        .map(|m| monitor_value_as_bool(m) && m.quality == PointQuality::Good)
+        .map(|m| super::monitor_value_as_bool(m) && m.quality == PointQuality::Good)
         .unwrap_or(true);
 
     let flt_ok = roles
         .get("flt")
         .and_then(|rp| monitor.get(&rp.point_id))
-        .map(|m| !monitor_value_as_bool(m) && m.quality == PointQuality::Good)
+        .map(|m| !super::monitor_value_as_bool(m) && m.quality == PointQuality::Good)
         .unwrap_or(true);
 
     if rem_ok && flt_ok {
@@ -417,15 +451,64 @@ fn find_cmd(
     }
 }
 
-fn monitor_value_as_bool(monitor: &PointMonitorInfo) -> bool {
-    match monitor.value.as_ref() {
-        Some(DataValue::Bool(v)) => *v,
-        Some(DataValue::Int(v)) => *v != 0,
-        Some(DataValue::UInt(v)) => *v != 0,
-        Some(DataValue::Float(v)) => *v != 0.0,
-        Some(DataValue::Text(v)) => {
-            matches!(v.trim().to_ascii_lowercase().as_str(), "1" | "true" | "on")
+#[cfg(test)]
+mod tests {
+    use super::build_equipment_maps;
+    use crate::model::Equipment;
+    use crate::service::EquipmentRolePoint;
+    use chrono::Utc;
+    use std::collections::HashMap;
+    use uuid::Uuid;
+
+    fn equipment(id: Uuid, unit_id: Uuid, kind: &str) -> Equipment {
+        Equipment {
+            id,
+            unit_id: Some(unit_id),
+            code: format!("EQ-{id}"),
+            name: format!("Equipment-{id}"),
+            kind: Some(kind.to_string()),
+            description: None,
+            created_at: Utc::now(),
+            updated_at: Utc::now(),
         }
-        _ => false,
+    }
+
+    #[test]
+    fn build_equipment_maps_reflects_latest_role_bindings() {
+        let unit_id = Uuid::new_v4();
+        let equipment_id = Uuid::new_v4();
+        let first_start_point = Uuid::new_v4();
+        let second_start_point = Uuid::new_v4();
+        let equipment_list = vec![equipment(equipment_id, unit_id, "coal_feeder")];
+
+        let mut first_roles = HashMap::new();
+        first_roles.insert(
+            equipment_id,
+            vec![EquipmentRolePoint {
+                point_id: first_start_point,
+                signal_role: "start_cmd".to_string(),
+            }],
+        );
+        let (first_kind_roles, _, _) = build_equipment_maps(unit_id, &equipment_list, first_roles);
+
+        let mut second_roles = HashMap::new();
+        second_roles.insert(
+            equipment_id,
+            vec![EquipmentRolePoint {
+                point_id: second_start_point,
+                signal_role: "start_cmd".to_string(),
+            }],
+        );
+        let (second_kind_roles, _, _) =
+            build_equipment_maps(unit_id, &equipment_list, second_roles);
+
+        assert_eq!(
+            first_kind_roles["coal_feeder"]["start_cmd"].point_id,
+            first_start_point
+        );
+        assert_eq!(
+            second_kind_roles["coal_feeder"]["start_cmd"].point_id,
+            second_start_point
+        );
     }
 }

src/control/mod.rs

@@ -1,4 +1,20 @@
 pub mod command;
 pub mod engine;
 pub mod runtime;
+pub mod simulate;
 pub mod validator;
+
+use crate::telemetry::{DataValue, PointMonitorInfo};
+
+pub(crate) fn monitor_value_as_bool(monitor: &PointMonitorInfo) -> bool {
+    match monitor.value.as_ref() {
+        Some(DataValue::Bool(v)) => *v,
+        Some(DataValue::Int(v)) => *v != 0,
+        Some(DataValue::UInt(v)) => *v != 0,
+        Some(DataValue::Float(v)) => *v != 0.0,
+        Some(DataValue::Text(v)) => {
+            matches!(v.trim().to_ascii_lowercase().as_str(), "1" | "true" | "on" | "yes")
+        }
+        _ => false,
+    }
+}

src/control/runtime.rs

@@ -1,7 +1,6 @@
 use std::{collections::HashMap, sync::Arc};
 
-use chrono::{DateTime, Utc};
-use tokio::sync::RwLock;
+use tokio::sync::{Notify, RwLock};
 use uuid::Uuid;
 
 #[derive(Debug, Clone, serde::Serialize, serde::Deserialize, PartialEq, Eq)]
@@ -20,14 +19,12 @@ pub struct UnitRuntime {
     pub state: UnitRuntimeState,
     pub auto_enabled: bool,
     pub accumulated_run_sec: i64,
-    pub current_run_elapsed_sec: i64,
-    pub current_stop_elapsed_sec: i64,
-    pub distributor_run_elapsed_sec: i64,
+    /// Snapshot updated only on state transitions; used for display to avoid mid-tick jitter.
+    pub display_acc_sec: i64,
     pub fault_locked: bool,
     pub flt_active: bool,
     pub comm_locked: bool,
     pub manual_ack_required: bool,
-    pub last_tick_at: Option<DateTime<Utc>>,
 }
 
 impl UnitRuntime {
@@ -37,14 +34,11 @@ impl UnitRuntime {
             state: UnitRuntimeState::Stopped,
             auto_enabled: false,
             accumulated_run_sec: 0,
-            current_run_elapsed_sec: 0,
-            current_stop_elapsed_sec: 0,
-            distributor_run_elapsed_sec: 0,
+            display_acc_sec: 0,
             fault_locked: false,
             flt_active: false,
             comm_locked: false,
             manual_ack_required: false,
-            last_tick_at: None,
         }
     }
 }
@@ -52,6 +46,7 @@ impl UnitRuntime {
 #[derive(Clone, Default)]
 pub struct ControlRuntimeStore {
     inner: Arc<RwLock<HashMap<Uuid, UnitRuntime>>>,
+    notifiers: Arc<RwLock<HashMap<Uuid, Arc<Notify>>>>,
 }
 
 impl ControlRuntimeStore {
@@ -76,4 +71,24 @@ impl ControlRuntimeStore {
     pub async fn upsert(&self, runtime: UnitRuntime) {
         self.inner.write().await.insert(runtime.unit_id, runtime);
     }
+
+    pub async fn get_or_create_notify(&self, unit_id: Uuid) -> Arc<Notify> {
+        self.notifiers
+            .write()
+            .await
+            .entry(unit_id)
+            .or_insert_with(|| Arc::new(Notify::new()))
+            .clone()
+    }
+
+    pub async fn get_all(&self) -> HashMap<Uuid, UnitRuntime> {
+        self.inner.read().await.clone()
+    }
+
+    /// Wake the engine task for a unit (e.g., when auto_enabled or fault_locked changes).
+    pub async fn notify_unit(&self, unit_id: Uuid) {
+        if let Some(n) = self.notifiers.read().await.get(&unit_id) {
+            n.notify_one();
+        }
+    }
 }

src/control/simulate.rs

@@ -0,0 +1,213 @@
+use tokio::time::Duration;
+use uuid::Uuid;
+
+use crate::{
+    connection::{BatchSetPointValueReq, SetPointValueReqItem},
+    telemetry::{DataValue, PointMonitorInfo, PointQuality, ValueType},
+    websocket::WsMessage,
+    AppState,
+};
+
+/// Start the chaos simulation task (only when SIMULATE_PLC=true).
+/// Randomly disrupts `rem` or `flt` signals on equipment to exercise the control engine.
+pub fn start(state: AppState) {
+    tokio::spawn(async move {
+        run(state).await;
+    });
+}
+
+async fn run(state: AppState) {
+    let mut rng = seed_rng();
+
+    loop {
+        // Wait a random 15–60 s between events.
+        let wait_secs = 15 + xorshift(&mut rng) % 46;
+        tokio::time::sleep(Duration::from_secs(wait_secs)).await;
+
+        // Pick a random enabled unit.
+        let units = match crate::service::get_all_enabled_units(&state.pool).await {
+            Ok(u) if !u.is_empty() => u,
+            _ => continue,
+        };
+        let unit = &units[xorshift(&mut rng) as usize % units.len()];
+
+        // Only target units with auto control running — otherwise the event is uninteresting.
+        let runtime = state.control_runtime.get(unit.id).await;
+        if runtime.map_or(true, |r| !r.auto_enabled) {
+            continue;
+        }
+
+        // Pick a random equipment in that unit.
+        let equipments =
+            match crate::service::get_equipment_by_unit_id(&state.pool, unit.id).await {
+                Ok(e) if !e.is_empty() => e,
+                _ => continue,
+            };
+        let eq = &equipments[xorshift(&mut rng) as usize % equipments.len()];
+
+        // Find which of rem / flt this equipment has.
+        let role_points =
+            match crate::service::get_equipment_role_points(&state.pool, eq.id).await {
+                Ok(rp) if !rp.is_empty() => rp,
+                _ => continue,
+            };
+
+        let candidates: Vec<&str> = ["flt", "rem"]
+            .iter()
+            .filter(|&&r| role_points.iter().any(|p| p.signal_role == r))
+            .copied()
+            .collect();
+
+        if candidates.is_empty() {
+            continue;
+        }
+
+        let target_role = candidates[xorshift(&mut rng) as usize % candidates.len()];
+        let target_point = role_points
+            .iter()
+            .find(|p| p.signal_role == target_role)
+            .unwrap();
+
+        // rem=false  →  not in remote mode (blocks commands)
+        // flt=true   →  fault signal active (triggers fault lock)
+        let trigger_value = target_role == "flt";
+
+        // Hold duration: 5–15 s for rem, 3–10 s for flt.
+        let hold_secs = if target_role == "flt" {
+            3 + xorshift(&mut rng) % 8
+        } else {
+            5 + xorshift(&mut rng) % 11
+        };
+
+        tracing::info!(
+            "[chaos] unit={} eq={} role={} → {} (hold {}s)",
+            unit.code,
+            eq.code,
+            target_role,
+            if trigger_value { "FAULT" } else { "REM OFF" },
+            hold_secs
+        );
+
+        patch_signal(&state, target_point.point_id, trigger_value).await;
+        tokio::time::sleep(Duration::from_secs(hold_secs)).await;
+        patch_signal(&state, target_point.point_id, !trigger_value).await;
+
+        tracing::info!(
+            "[chaos] unit={} eq={} role={} → RESTORED",
+            unit.code,
+            eq.code,
+            target_role
+        );
+    }
+}
+
+/// Simulate RUN signal feedback for an equipment after a manual start/stop command.
+/// Called by the engine and control handler when SIMULATE_PLC=true.
+pub async fn simulate_run_feedback(state: &AppState, equipment_id: Uuid, run_on: bool) {
+    let role_points =
+        match crate::service::get_equipment_role_points(&state.pool, equipment_id).await {
+            Ok(v) => v,
+            Err(e) => {
+                tracing::warn!("simulate_run_feedback: db error: {}", e);
+                return;
+            }
+        };
+    let run_point = match role_points.iter().find(|p| p.signal_role == "run") {
+        Some(p) => p.clone(),
+        None => return,
+    };
+    patch_signal(state, run_point.point_id, run_on).await;
+}
+
+/// Patch a signal point value: try OPC UA write first, fall back to cache patch + WS push.
+pub async fn patch_signal(state: &AppState, point_id: Uuid, value_on: bool) {
+    let write_json = serde_json::json!(if value_on { 1 } else { 0 });
+    let write_ok = match state
+        .connection_manager
+        .write_point_values_batch(BatchSetPointValueReq {
+            items: vec![SetPointValueReqItem {
+                point_id,
+                value: write_json,
+            }],
+        })
+        .await
+    {
+        Ok(res) => res.success,
+        Err(_) => false,
+    };
+
+    if write_ok {
+        return;
+    }
+
+    // Fallback: patch the monitor cache directly and broadcast over WS.
+    let (value, value_type, value_text) = {
+        let guard = state
+            .connection_manager
+            .get_point_monitor_data_read_guard()
+            .await;
+        match guard.get(&point_id).and_then(|m| m.value_type.as_ref()) {
+            Some(ValueType::Int) => (
+                DataValue::Int(if value_on { 1 } else { 0 }),
+                Some(ValueType::Int),
+                Some(if value_on { "1" } else { "0" }.to_string()),
+            ),
+            Some(ValueType::UInt) => (
+                DataValue::UInt(if value_on { 1 } else { 0 }),
+                Some(ValueType::UInt),
+                Some(if value_on { "1" } else { "0" }.to_string()),
+            ),
+            _ => (
+                DataValue::Bool(value_on),
+                Some(ValueType::Bool),
+                Some(value_on.to_string()),
+            ),
+        }
+    };
+
+    let monitor = PointMonitorInfo {
+        protocol: "simulation".to_string(),
+        source_id: Uuid::nil(),
+        point_id,
+        client_handle: 0,
+        scan_mode: crate::model::ScanMode::Poll,
+        timestamp: Some(chrono::Utc::now()),
+        quality: PointQuality::Good,
+        value: Some(value),
+        value_type,
+        value_text,
+        old_value: None,
+        old_timestamp: None,
+        value_changed: true,
+    };
+
+    if let Err(e) = state
+        .connection_manager
+        .update_point_monitor_data(monitor.clone())
+        .await
+    {
+        tracing::warn!("[chaos] cache update failed for {}: {}", point_id, e);
+        return;
+    }
+
+    let _ = state
+        .ws_manager
+        .send_to_public(WsMessage::PointNewValue(monitor))
+        .await;
+}
+
+// ── Minimal XorShift64 PRNG (no external crate needed) ────────────────────────
+
+fn seed_rng() -> u64 {
+    std::time::SystemTime::now()
+        .duration_since(std::time::UNIX_EPOCH)
+        .map(|d| d.as_nanos() as u64 ^ d.as_secs().wrapping_mul(0x9e37_79b9_7f4a_7c15))
+        .unwrap_or(0xdeadbeef)
+}
+
+fn xorshift(s: &mut u64) -> u64 {
+    *s ^= *s << 13;
+    *s ^= *s >> 7;
+    *s ^= *s << 17;
+    *s
+}

src/control/validator.rs

@@ -5,7 +5,7 @@ use uuid::Uuid;
 
 use crate::{
     service::EquipmentRolePoint,
-    telemetry::{DataValue, PointMonitorInfo, PointQuality, ValueType},
+    telemetry::{PointMonitorInfo, PointQuality, ValueType},
     util::response::ApiErr,
     AppState,
 };
@@ -95,7 +95,7 @@ pub async fn validate_manual_control(
         let rem_monitor = monitor_guard
             .get(&rem_point.point_id)
             .ok_or_else(|| missing_monitor_err("REM", equipment_id))?;
-        if !monitor_value_as_bool(rem_monitor) {
+        if !super::monitor_value_as_bool(rem_monitor) {
             return Err(ApiErr::Forbidden(
                 "Remote control not allowed, REM is not enabled".to_string(),
                 Some(json!({ "equipment_id": equipment_id })),
@@ -107,7 +107,7 @@ pub async fn validate_manual_control(
         let flt_monitor = monitor_guard
             .get(&flt_point.point_id)
             .ok_or_else(|| missing_monitor_err("FLT", equipment_id))?;
-        if monitor_value_as_bool(flt_monitor) {
+        if super::monitor_value_as_bool(flt_monitor) {
             return Err(ApiErr::Forbidden(
                 "Equipment fault is active, command denied".to_string(),
                 Some(json!({ "equipment_id": equipment_id })),
@@ -199,16 +199,3 @@ fn missing_monitor_err(role: &str, equipment_id: Uuid) -> ApiErr {
     )
 }
 
-fn monitor_value_as_bool(monitor: &PointMonitorInfo) -> bool {
-    match monitor.value.as_ref() {
-        Some(DataValue::Bool(value)) => *value,
-        Some(DataValue::Int(value)) => *value != 0,
-        Some(DataValue::UInt(value)) => *value != 0,
-        Some(DataValue::Float(value)) => *value != 0.0,
-        Some(DataValue::Text(value)) => matches!(
-            value.trim().to_ascii_lowercase().as_str(),
-            "1" | "true" | "on" | "yes"
-        ),
-        _ => false,
-    }
-}

src/event.rs

@@ -15,6 +15,7 @@ pub enum AppEvent {
     },
     SourceDelete {
         source_id: Uuid,
+        source_name: String,
     },
     PointCreateBatch {
         source_id: Uuid,
@@ -159,7 +160,7 @@ async fn handle_control_event(
                 tracing::error!("Failed to reconnect source {}: {}", source_id, e);
             }
         }
-        AppEvent::SourceDelete { source_id } => {
+        AppEvent::SourceDelete { source_id, .. } => {
             tracing::info!("Processing SourceDelete event for {}", source_id);
             if let Err(e) = connection_manager.disconnect(source_id).await {
                 tracing::error!("Failed to disconnect from source {}: {}", source_id, e);
@@ -253,133 +254,166 @@ async fn handle_control_event(
     }
 }
 
+async fn fetch_source_name(pool: &sqlx::PgPool, id: Uuid) -> String {
+    sqlx::query_scalar::<_, String>("SELECT name FROM source WHERE id = $1")
+        .bind(id)
+        .fetch_optional(pool)
+        .await
+        .ok()
+        .flatten()
+        .unwrap_or_else(|| id.to_string())
+}
+
+async fn fetch_unit_code(pool: &sqlx::PgPool, id: Uuid) -> String {
+    sqlx::query_scalar::<_, String>("SELECT code FROM unit WHERE id = $1")
+        .bind(id)
+        .fetch_optional(pool)
+        .await
+        .ok()
+        .flatten()
+        .unwrap_or_else(|| id.to_string())
+}
+
+async fn fetch_equipment_code(pool: &sqlx::PgPool, id: Uuid) -> String {
+    sqlx::query_scalar::<_, String>("SELECT code FROM equipment WHERE id = $1")
+        .bind(id)
+        .fetch_optional(pool)
+        .await
+        .ok()
+        .flatten()
+        .unwrap_or_else(|| id.to_string())
+}
+
 async fn persist_event_if_needed(
     event: &AppEvent,
     pool: &sqlx::PgPool,
     ws_manager: Option<&std::sync::Arc<crate::websocket::WebSocketManager>>,
 ) {
     let record = match event {
-        AppEvent::SourceCreate { source_id } => Some((
-            "source.created",
-            "info",
-            None,
-            None,
-            Some(*source_id),
-            format!("Source {} created", source_id),
+        AppEvent::SourceCreate { source_id } => {
+            let name = fetch_source_name(pool, *source_id).await;
+            Some((
+                "source.created", "info",
+                None, None, Some(*source_id),
+                format!("数据源【{}】已创建", name),
+                serde_json::json!({ "source_id": source_id }),
+            ))
+        }
+        AppEvent::SourceUpdate { source_id } => {
+            let name = fetch_source_name(pool, *source_id).await;
+            Some((
+                "source.updated", "info",
+                None, None, Some(*source_id),
+                format!("数据源【{}】已更新", name),
+                serde_json::json!({ "source_id": source_id }),
+            ))
+        }
+        AppEvent::SourceDelete { source_id, source_name } => Some((
+            "source.deleted", "warn",
+            None, None, None,
+            format!("数据源【{}】已删除", source_name),
             serde_json::json!({ "source_id": source_id }),
         )),
-        AppEvent::SourceUpdate { source_id } => Some((
-            "source.updated",
-            "info",
-            None,
-            None,
-            Some(*source_id),
-            format!("Source {} updated", source_id),
-            serde_json::json!({ "source_id": source_id }),
-        )),
-        AppEvent::SourceDelete { source_id } => Some((
-            "source.deleted",
-            "warn",
-            None,
-            None,
-            None,
-            format!("Source {} deleted", source_id),
-            serde_json::json!({ "source_id": source_id }),
-        )),
-        AppEvent::PointCreateBatch { source_id, point_ids } => Some((
-            "point.batch_created",
-            "info",
-            None,
-            None,
-            Some(*source_id),
-            format!("{} points created for source {}", point_ids.len(), source_id),
+        AppEvent::PointCreateBatch { source_id, point_ids } => {
+            let name = fetch_source_name(pool, *source_id).await;
+            Some((
+                "point.batch_created", "info",
+                None, None, Some(*source_id),
+                format!("批量创建 {} 个测点（数据源：{}）", point_ids.len(), name),
                 serde_json::json!({ "source_id": source_id, "point_ids": point_ids }),
-        )),
-        AppEvent::PointDeleteBatch { source_id, point_ids } => Some((
-            "point.batch_deleted",
-            "warn",
-            None,
-            None,
-            Some(*source_id),
-            format!("{} points deleted for source {}", point_ids.len(), source_id),
+            ))
+        }
+        AppEvent::PointDeleteBatch { source_id, point_ids } => {
+            let name = fetch_source_name(pool, *source_id).await;
+            Some((
+                "point.batch_deleted", "warn",
+                None, None, Some(*source_id),
+                format!("批量删除 {} 个测点（数据源：{}）", point_ids.len(), name),
                 serde_json::json!({ "source_id": source_id, "point_ids": point_ids }),
-        )),
-        AppEvent::EquipmentStartCommandSent {
-            equipment_id,
-            unit_id,
-            point_id,
-        } => Some((
-            "equipment.start_command_sent",
-            "info",
-            *unit_id,
-            Some(*equipment_id),
-            None,
-            format!("Start command sent to equipment {}", equipment_id),
+            ))
+        }
+        AppEvent::EquipmentStartCommandSent { equipment_id, unit_id, point_id } => {
+            let code = fetch_equipment_code(pool, *equipment_id).await;
+            Some((
+                "equipment.start_command_sent", "info",
+                *unit_id, Some(*equipment_id), None,
+                format!("已发送启动指令（设备：{}）", code),
                 serde_json::json!({
                     "equipment_id": equipment_id,
                     "unit_id": unit_id,
                     "point_id": point_id
                 }),
-        )),
-        AppEvent::EquipmentStopCommandSent {
-            equipment_id,
-            unit_id,
-            point_id,
-        } => Some((
-            "equipment.stop_command_sent",
-            "info",
-            *unit_id,
-            Some(*equipment_id),
-            None,
-            format!("Stop command sent to equipment {}", equipment_id),
+            ))
+        }
+        AppEvent::EquipmentStopCommandSent { equipment_id, unit_id, point_id } => {
+            let code = fetch_equipment_code(pool, *equipment_id).await;
+            Some((
+                "equipment.stop_command_sent", "info",
+                *unit_id, Some(*equipment_id), None,
+                format!("已发送停止指令（设备：{}）", code),
                 serde_json::json!({
                     "equipment_id": equipment_id,
                     "unit_id": unit_id,
                     "point_id": point_id
                 }),
-        )),
-        AppEvent::AutoControlStarted { unit_id } => Some((
+            ))
+        }
+        AppEvent::AutoControlStarted { unit_id } => {
+            let code = fetch_unit_code(pool, *unit_id).await;
+            Some((
                 "unit.auto_control_started", "info",
                 Some(*unit_id), None, None,
-            format!("Auto control started for unit {}", unit_id),
+                format!("已启动自动控制（单元：{}）", code),
                 serde_json::json!({ "unit_id": unit_id }),
-        )),
-        AppEvent::AutoControlStopped { unit_id } => Some((
+            ))
+        }
+        AppEvent::AutoControlStopped { unit_id } => {
+            let code = fetch_unit_code(pool, *unit_id).await;
+            Some((
                 "unit.auto_control_stopped", "info",
                 Some(*unit_id), None, None,
-            format!("Auto control stopped for unit {}", unit_id),
+                format!("已停止自动控制（单元：{}）", code),
                 serde_json::json!({ "unit_id": unit_id }),
-        )),
-        AppEvent::FaultLocked { unit_id, equipment_id } => Some((
+            ))
+        }
+        AppEvent::FaultLocked { unit_id, equipment_id } => {
+            let unit_code = fetch_unit_code(pool, *unit_id).await;
+            let eq_code = fetch_equipment_code(pool, *equipment_id).await;
+            Some((
                 "unit.fault_locked", "error",
                 Some(*unit_id), Some(*equipment_id), None,
-            format!("Unit {} fault locked by equipment {}", unit_id, equipment_id),
+                format!("单元【{}】发生故障锁定，触发设备：{}", unit_code, eq_code),
                 serde_json::json!({ "unit_id": unit_id, "equipment_id": equipment_id }),
-        )),
-        AppEvent::FaultAcked { unit_id } => Some((
+            ))
+        }
+        AppEvent::FaultAcked { unit_id } => {
+            let code = fetch_unit_code(pool, *unit_id).await;
+            Some((
                 "unit.fault_acked", "info",
                 Some(*unit_id), None, None,
-            format!("Unit {} fault acknowledged", unit_id),
+                format!("单元【{}】故障已人工确认", code),
                 serde_json::json!({ "unit_id": unit_id }),
-        )),
-        AppEvent::CommLocked { unit_id } => Some((
+            ))
+        }
+        AppEvent::CommLocked { unit_id } => {
+            let code = fetch_unit_code(pool, *unit_id).await;
+            Some((
                 "unit.comm_locked", "warn",
                 Some(*unit_id), None, None,
-            format!("Unit {} communication locked", unit_id),
+                format!("单元【{}】通讯中断", code),
                 serde_json::json!({ "unit_id": unit_id }),
-        )),
-        AppEvent::CommRecovered { unit_id } => Some((
+            ))
+        }
+        AppEvent::CommRecovered { unit_id } => {
+            let code = fetch_unit_code(pool, *unit_id).await;
+            Some((
                 "unit.comm_recovered", "info",
                 Some(*unit_id), None, None,
-            format!("Unit {} communication recovered", unit_id),
+                format!("单元【{}】通讯恢复", code),
                 serde_json::json!({ "unit_id": unit_id }),
-        )),
-        AppEvent::UnitStateChanged { unit_id, from_state, to_state } => Some((
-            "unit.state_changed", "info",
-            Some(*unit_id), None, None,
-            format!("Unit {} state: {} → {}", unit_id, from_state, to_state),
-            serde_json::json!({ "unit_id": unit_id, "from": from_state, "to": to_state }),
-        )),
+            ))
+        }
+        AppEvent::UnitStateChanged { .. } => None,
         AppEvent::PointNewValue(_) => None,
     };
 

src/handler/control.rs

@@ -18,6 +18,27 @@ use crate::{
     AppState,
 };
 
+fn validate_unit_timing_order(
+    run_time_sec: i32,
+    acc_time_sec: i32,
+) -> Result<(), ApiErr> {
+    if acc_time_sec <= run_time_sec {
+        return Err(ApiErr::BadRequest(
+            "acc_time_sec must be greater than run_time_sec".to_string(),
+            Some(json!({
+                "run_time_sec": ["must be less than acc_time_sec"],
+                "acc_time_sec": ["must be greater than run_time_sec"]
+            })),
+        ));
+    }
+
+    Ok(())
+}
+
+fn auto_control_start_blocked(runtime: &crate::control::runtime::UnitRuntime) -> bool {
+    runtime.fault_locked || runtime.comm_locked || runtime.manual_ack_required
+}
+
 #[derive(Debug, Deserialize, Validate)]
 pub struct GetUnitListQuery {
     #[validate(length(min = 1, max = 100))]
@@ -26,6 +47,21 @@ pub struct GetUnitListQuery {
     pub pagination: PaginationParams,
 }
 
+#[derive(serde::Serialize)]
+pub struct UnitEquipmentItem {
+    #[serde(flatten)]
+    pub equipment: crate::model::Equipment,
+    pub role_points: Vec<crate::handler::equipment::SignalRolePoint>,
+}
+
+#[derive(serde::Serialize)]
+pub struct UnitWithRuntime {
+    #[serde(flatten)]
+    pub unit: crate::model::ControlUnit,
+    pub runtime: Option<crate::control::runtime::UnitRuntime>,
+    pub equipments: Vec<UnitEquipmentItem>,
+}
+
 pub async fn get_unit_list(
     State(state): State<AppState>,
     Query(query): Query<GetUnitListQuery>,
@@ -33,7 +69,7 @@ pub async fn get_unit_list(
     query.validate()?;
 
     let total = crate::service::get_units_count(&state.pool, query.keyword.as_deref()).await?;
-    let data = crate::service::get_units_paginated(
+    let units = crate::service::get_units_paginated(
         &state.pool,
         query.keyword.as_deref(),
         query.pagination.page_size,
@@ -41,6 +77,58 @@ pub async fn get_unit_list(
     )
     .await?;
 
+    let all_runtimes = state.control_runtime.get_all().await;
+
+    let unit_ids: Vec<Uuid> = units.iter().map(|u| u.id).collect();
+    let all_equipments =
+        crate::service::get_equipment_by_unit_ids(&state.pool, &unit_ids).await?;
+
+    let eq_ids: Vec<Uuid> = all_equipments.iter().map(|e| e.id).collect();
+    let role_point_rows =
+        crate::service::get_signal_role_points_batch(&state.pool, &eq_ids).await?;
+
+    let monitor_guard = state
+        .connection_manager
+        .get_point_monitor_data_read_guard()
+        .await;
+
+    let mut role_points_map: std::collections::HashMap<
+        Uuid,
+        Vec<crate::handler::equipment::SignalRolePoint>,
+    > = std::collections::HashMap::new();
+    for rp in role_point_rows {
+        role_points_map
+            .entry(rp.equipment_id)
+            .or_default()
+            .push(crate::handler::equipment::SignalRolePoint {
+                point_id: rp.point_id,
+                signal_role: rp.signal_role,
+                point_monitor: monitor_guard.get(&rp.point_id).cloned(),
+            });
+    }
+    drop(monitor_guard);
+
+    let mut equipments_by_unit: std::collections::HashMap<Uuid, Vec<UnitEquipmentItem>> =
+        std::collections::HashMap::new();
+    for eq in all_equipments {
+        let role_points = role_points_map.remove(&eq.id).unwrap_or_default();
+        if let Some(unit_id) = eq.unit_id {
+            equipments_by_unit
+                .entry(unit_id)
+                .or_default()
+                .push(UnitEquipmentItem { equipment: eq, role_points });
+        }
+    }
+
+    let data = units
+        .into_iter()
+        .map(|unit| {
+            let runtime = all_runtimes.get(&unit.id).cloned();
+            let equipments = equipments_by_unit.remove(&unit.id).unwrap_or_default();
+            UnitWithRuntime { unit, runtime, equipments }
+        })
+        .collect::<Vec<_>>();
+
     Ok(Json(PaginatedResponse::new(
         data,
         total,
@@ -82,7 +170,7 @@ async fn send_equipment_command(
     .map_err(|e| ApiErr::Internal(e, None))?;
 
     if state.config.simulate_plc {
-        crate::control::command::simulate_run_feedback(
+        crate::control::simulate::simulate_run_feedback(
             &state,
             equipment_id,
             matches!(action, ControlAction::Start),
@@ -118,10 +206,45 @@ pub async fn get_unit(
     State(state): State<AppState>,
     Path(unit_id): Path<Uuid>,
 ) -> Result<impl IntoResponse, ApiErr> {
-    match crate::service::get_unit_by_id(&state.pool, unit_id).await? {
-        Some(unit) => Ok(Json(unit)),
-        None => Err(ApiErr::NotFound("Unit not found".to_string(), None)),
+    let unit = crate::service::get_unit_by_id(&state.pool, unit_id)
+        .await?
+        .ok_or_else(|| ApiErr::NotFound("Unit not found".to_string(), None))?;
+    let runtime = state.control_runtime.get(unit_id).await;
+
+    let all_equipments =
+        crate::service::get_equipment_by_unit_id(&state.pool, unit_id).await?;
+    let eq_ids: Vec<Uuid> = all_equipments.iter().map(|e| e.id).collect();
+    let role_point_rows =
+        crate::service::get_signal_role_points_batch(&state.pool, &eq_ids).await?;
+    let monitor_guard = state
+        .connection_manager
+        .get_point_monitor_data_read_guard()
+        .await;
+    let mut role_points_map: std::collections::HashMap<
+        Uuid,
+        Vec<crate::handler::equipment::SignalRolePoint>,
+    > = std::collections::HashMap::new();
+    for rp in role_point_rows {
+        role_points_map
+            .entry(rp.equipment_id)
+            .or_default()
+            .push(crate::handler::equipment::SignalRolePoint {
+                point_id: rp.point_id,
+                signal_role: rp.signal_role,
+                point_monitor: monitor_guard.get(&rp.point_id).cloned(),
+            });
     }
+    drop(monitor_guard);
+
+    let equipments = all_equipments
+        .into_iter()
+        .map(|eq| {
+            let role_points = role_points_map.remove(&eq.id).unwrap_or_default();
+            UnitEquipmentItem { equipment: eq, role_points }
+        })
+        .collect();
+
+    Ok(Json(UnitWithRuntime { unit, runtime, equipments }))
 }
 
 #[derive(serde::Serialize)]
@@ -142,6 +265,7 @@ pub struct EquipmentDetail {
 pub struct UnitDetail {
     #[serde(flatten)]
     pub unit: crate::model::ControlUnit,
+    pub runtime: Option<crate::control::runtime::UnitRuntime>,
     pub equipments: Vec<EquipmentDetail>,
 }
 
@@ -153,6 +277,8 @@ pub async fn get_unit_detail(
         .await?
         .ok_or_else(|| ApiErr::NotFound("Unit not found".to_string(), None))?;
 
+    let runtime = state.control_runtime.get(unit_id).await;
+
     let equipments = crate::service::get_equipment_by_unit_id(&state.pool, unit_id).await?;
     let equipment_ids: Vec<Uuid> = equipments.iter().map(|e| e.id).collect();
     let all_points = crate::service::get_points_by_equipment_ids(&state.pool, &equipment_ids).await?;
@@ -177,7 +303,7 @@ pub async fn get_unit_detail(
         })
         .collect();
 
-    Ok(Json(UnitDetail { unit, equipments }))
+    Ok(Json(UnitDetail { unit, runtime, equipments }))
 }
 
 #[derive(Debug, Deserialize, Validate)]
@@ -188,13 +314,13 @@ pub struct CreateUnitReq {
     pub name: String,
     pub description: Option<String>,
     pub enabled: Option<bool>,
-    #[validate(range(min = 0))]
+    #[validate(range(min = 1, message = "must be greater than 0"))]
     pub run_time_sec: Option<i32>,
-    #[validate(range(min = 0))]
+    #[validate(range(min = 1, message = "must be greater than 0"))]
     pub stop_time_sec: Option<i32>,
-    #[validate(range(min = 0))]
+    #[validate(range(min = 1, message = "must be greater than 0"))]
     pub acc_time_sec: Option<i32>,
-    #[validate(range(min = 0))]
+    #[validate(range(min = 1, message = "must be greater than 0"))]
     pub bl_time_sec: Option<i32>,
     pub require_manual_ack_after_fault: Option<bool>,
 }
@@ -205,6 +331,33 @@ pub async fn create_unit(
 ) -> Result<impl IntoResponse, ApiErr> {
     payload.validate()?;
 
+    let run_time_sec = payload.run_time_sec.ok_or_else(|| {
+        ApiErr::BadRequest(
+            "run_time_sec is required".to_string(),
+            Some(json!({ "run_time_sec": ["is required"] })),
+        )
+    })?;
+    let stop_time_sec = payload.stop_time_sec.ok_or_else(|| {
+        ApiErr::BadRequest(
+            "stop_time_sec is required".to_string(),
+            Some(json!({ "stop_time_sec": ["is required"] })),
+        )
+    })?;
+    let acc_time_sec = payload.acc_time_sec.ok_or_else(|| {
+        ApiErr::BadRequest(
+            "acc_time_sec is required".to_string(),
+            Some(json!({ "acc_time_sec": ["is required"] })),
+        )
+    })?;
+    let bl_time_sec = payload.bl_time_sec.ok_or_else(|| {
+        ApiErr::BadRequest(
+            "bl_time_sec is required".to_string(),
+            Some(json!({ "bl_time_sec": ["is required"] })),
+        )
+    })?;
+
+    validate_unit_timing_order(run_time_sec, acc_time_sec)?;
+
     if crate::service::get_unit_by_code(&state.pool, &payload.code)
         .await?
         .is_some()
@@ -222,10 +375,10 @@ pub async fn create_unit(
             name: &payload.name,
             description: payload.description.as_deref(),
             enabled: payload.enabled.unwrap_or(true),
-            run_time_sec: payload.run_time_sec.unwrap_or(0),
-            stop_time_sec: payload.stop_time_sec.unwrap_or(0),
-            acc_time_sec: payload.acc_time_sec.unwrap_or(0),
-            bl_time_sec: payload.bl_time_sec.unwrap_or(0),
+            run_time_sec,
+            stop_time_sec,
+            acc_time_sec,
+            bl_time_sec,
             require_manual_ack_after_fault: payload
                 .require_manual_ack_after_fault
                 .unwrap_or(true),
@@ -250,13 +403,13 @@ pub struct UpdateUnitReq {
     pub name: Option<String>,
     pub description: Option<String>,
     pub enabled: Option<bool>,
-    #[validate(range(min = 0))]
+    #[validate(range(min = 1, message = "must be greater than 0"))]
     pub run_time_sec: Option<i32>,
-    #[validate(range(min = 0))]
+    #[validate(range(min = 1, message = "must be greater than 0"))]
     pub stop_time_sec: Option<i32>,
-    #[validate(range(min = 0))]
+    #[validate(range(min = 1, message = "must be greater than 0"))]
     pub acc_time_sec: Option<i32>,
-    #[validate(range(min = 0))]
+    #[validate(range(min = 1, message = "must be greater than 0"))]
     pub bl_time_sec: Option<i32>,
     pub require_manual_ack_after_fault: Option<bool>,
 }
@@ -268,12 +421,14 @@ pub async fn update_unit(
 ) -> Result<impl IntoResponse, ApiErr> {
     payload.validate()?;
 
-    if crate::service::get_unit_by_id(&state.pool, unit_id)
+    let existing_unit = crate::service::get_unit_by_id(&state.pool, unit_id)
         .await?
-        .is_none()
-    {
-        return Err(ApiErr::NotFound("Unit not found".to_string(), None));
-    }
+        .ok_or_else(|| ApiErr::NotFound("Unit not found".to_string(), None))?;
+
+    validate_unit_timing_order(
+        payload.run_time_sec.unwrap_or(existing_unit.run_time_sec),
+        payload.acc_time_sec.unwrap_or(existing_unit.acc_time_sec),
+    )?;
 
     if let Some(code) = payload.code.as_deref() {
         let duplicate = crate::service::get_unit_by_code(&state.pool, code).await?;
@@ -383,10 +538,20 @@ pub async fn start_auto_unit(
     }
 
     let mut runtime = state.control_runtime.get_or_init(unit_id).await;
+    if auto_control_start_blocked(&runtime) {
+        let message = if runtime.fault_locked {
+            "Unit is fault locked, cannot start auto control"
+        } else if runtime.comm_locked {
+            "Unit communication is locked, cannot start auto control"
+        } else {
+            "Fault acknowledgement required before starting auto control"
+        };
+        return Err(ApiErr::BadRequest(message.to_string(), None));
+    }
     runtime.auto_enabled = true;
     runtime.state = crate::control::runtime::UnitRuntimeState::Stopped;
-    runtime.current_stop_elapsed_sec = 0;
     state.control_runtime.upsert(runtime).await;
+    state.control_runtime.notify_unit(unit_id).await;
 
     let _ = state.event_manager.send(crate::event::AppEvent::AutoControlStarted { unit_id });
 
@@ -404,6 +569,7 @@ pub async fn stop_auto_unit(
     let mut runtime = state.control_runtime.get_or_init(unit_id).await;
     runtime.auto_enabled = false;
     state.control_runtime.upsert(runtime).await;
+    state.control_runtime.notify_unit(unit_id).await;
 
     let _ = state.event_manager.send(crate::event::AppEvent::AutoControlStopped { unit_id });
 
@@ -423,14 +589,14 @@ pub async fn batch_start_auto(
             skipped.push(unit.id);
             continue;
         }
-        if runtime.fault_locked || runtime.comm_locked {
+        if auto_control_start_blocked(&runtime) {
             skipped.push(unit.id);
             continue;
         }
         runtime.auto_enabled = true;
         runtime.state = crate::control::runtime::UnitRuntimeState::Stopped;
-        runtime.current_stop_elapsed_sec = 0;
         state.control_runtime.upsert(runtime).await;
+        state.control_runtime.notify_unit(unit.id).await;
         let _ = state
             .event_manager
             .send(crate::event::AppEvent::AutoControlStarted { unit_id: unit.id });
@@ -453,6 +619,7 @@ pub async fn batch_stop_auto(
         }
         runtime.auto_enabled = false;
         state.control_runtime.upsert(runtime).await;
+        state.control_runtime.notify_unit(unit.id).await;
         let _ = state
             .event_manager
             .send(crate::event::AppEvent::AutoControlStopped { unit_id: unit.id });
@@ -489,6 +656,7 @@ pub async fn ack_fault_unit(
     runtime.manual_ack_required = false;
     runtime.state = crate::control::runtime::UnitRuntimeState::Stopped;
     state.control_runtime.upsert(runtime).await;
+    state.control_runtime.notify_unit(unit_id).await;
 
     let _ = state.event_manager.send(crate::event::AppEvent::FaultAcked { unit_id });
 
@@ -506,3 +674,74 @@ pub async fn get_unit_runtime(
     let runtime = state.control_runtime.get_or_init(unit_id).await;
     Ok(Json(runtime))
 }
+
+#[cfg(test)]
+mod tests {
+    use super::{
+        auto_control_start_blocked, validate_unit_timing_order, CreateUnitReq, UpdateUnitReq,
+    };
+    use crate::control::runtime::{UnitRuntime, UnitRuntimeState};
+    use uuid::Uuid;
+    use validator::Validate;
+
+    #[test]
+    fn create_unit_req_rejects_zero_second_fields() {
+        let payload = CreateUnitReq {
+            code: "U-01".to_string(),
+            name: "Unit 01".to_string(),
+            description: None,
+            enabled: Some(true),
+            run_time_sec: Some(0),
+            stop_time_sec: Some(10),
+            acc_time_sec: Some(20),
+            bl_time_sec: Some(5),
+            require_manual_ack_after_fault: Some(true),
+        };
+
+        assert!(payload.validate().is_err());
+    }
+
+    #[test]
+    fn create_unit_req_rejects_acc_time_not_greater_than_run_time() {
+        assert!(validate_unit_timing_order(10, 10).is_err());
+    }
+
+    #[test]
+    fn update_unit_req_rejects_zero_second_fields() {
+        let payload = UpdateUnitReq {
+            code: None,
+            name: None,
+            description: None,
+            enabled: None,
+            run_time_sec: None,
+            stop_time_sec: Some(0),
+            acc_time_sec: Some(20),
+            bl_time_sec: Some(5),
+            require_manual_ack_after_fault: None,
+        };
+
+        assert!(payload.validate().is_err());
+    }
+
+    #[test]
+    fn update_unit_req_rejects_acc_time_not_greater_than_run_time_when_both_present() {
+        assert!(validate_unit_timing_order(20, 15).is_err());
+    }
+
+    #[test]
+    fn auto_control_start_is_blocked_by_comm_lock() {
+        let runtime = UnitRuntime {
+            unit_id: Uuid::new_v4(),
+            state: UnitRuntimeState::Stopped,
+            auto_enabled: false,
+            accumulated_run_sec: 0,
+            display_acc_sec: 0,
+            fault_locked: false,
+            flt_active: false,
+            comm_locked: true,
+            manual_ack_required: false,
+        };
+
+        assert!(auto_control_start_blocked(&runtime));
+    }
+}

src/handler/doc.rs

@@ -21,3 +21,20 @@ pub async fn get_api_md() -> Result<impl IntoResponse, ApiErr> {
 
     Ok((StatusCode::OK, headers, content))
 }
+
+pub async fn get_readme_md() -> Result<impl IntoResponse, ApiErr> {
+    let content = tokio::fs::read_to_string("README.md")
+        .await
+        .map_err(|err| {
+            tracing::error!("Failed to read README.md: {}", err);
+            ApiErr::NotFound("README.md not found".to_string(), None)
+        })?;
+
+    let mut headers = HeaderMap::new();
+    headers.insert(
+        header::CONTENT_TYPE,
+        HeaderValue::from_static("text/markdown; charset=utf-8"),
+    );
+
+    Ok((StatusCode::OK, headers, content))
+}

src/handler/equipment.rs

@@ -14,6 +14,18 @@ use crate::util::{
 };
 use crate::AppState;
 
+async fn notify_units(
+    state: &AppState,
+    unit_ids: impl IntoIterator<Item = Uuid>,
+) {
+    let mut seen = std::collections::HashSet::new();
+    for unit_id in unit_ids {
+        if seen.insert(unit_id) {
+            state.control_runtime.notify_unit(unit_id).await;
+        }
+    }
+}
+
 #[derive(Deserialize, Validate)]
 pub struct GetEquipmentListQuery {
     #[validate(length(min = 1, max = 100))]
@@ -22,11 +34,19 @@ pub struct GetEquipmentListQuery {
     pub pagination: PaginationParams,
 }
 
+#[derive(Serialize)]
+pub struct SignalRolePoint {
+    pub point_id: uuid::Uuid,
+    pub signal_role: String,
+    pub point_monitor: Option<crate::telemetry::PointMonitorInfo>,
+}
+
 #[derive(Serialize)]
 pub struct EquipmentListItem {
     #[serde(flatten)]
     pub equipment: crate::model::Equipment,
     pub point_count: i64,
+    pub role_points: Vec<SignalRolePoint>,
 }
 
 pub async fn get_equipment_list(
@@ -36,7 +56,7 @@ pub async fn get_equipment_list(
     query.validate()?;
 
     let total = crate::service::get_equipment_count(&state.pool, query.keyword.as_deref()).await?;
-    let data = crate::service::get_equipment_paginated(
+    let items = crate::service::get_equipment_paginated(
         &state.pool,
         query.keyword.as_deref(),
         query.pagination.page_size,
@@ -44,6 +64,38 @@ pub async fn get_equipment_list(
     )
     .await?;
 
+    let equipment_ids: Vec<uuid::Uuid> = items.iter().map(|item| item.equipment.id).collect();
+    let role_point_rows =
+        crate::service::get_signal_role_points_batch(&state.pool, &equipment_ids).await?;
+
+    let monitor_guard = state
+        .connection_manager
+        .get_point_monitor_data_read_guard()
+        .await;
+
+    let mut role_points_map: std::collections::HashMap<uuid::Uuid, Vec<SignalRolePoint>> =
+        std::collections::HashMap::new();
+    for rp in role_point_rows {
+        role_points_map
+            .entry(rp.equipment_id)
+            .or_default()
+            .push(SignalRolePoint {
+                point_id: rp.point_id,
+                signal_role: rp.signal_role,
+                point_monitor: monitor_guard.get(&rp.point_id).cloned(),
+            });
+    }
+
+    let data = items
+        .into_iter()
+        .map(|item| EquipmentListItem {
+            role_points: role_points_map
+                .remove(&item.equipment.id)
+                .unwrap_or_default(),
+            ..item
+        })
+        .collect::<Vec<_>>();
+
     Ok(Json(PaginatedResponse::new(
         data,
         total,
@@ -136,6 +188,10 @@ pub async fn create_equipment(
     )
     .await?;
 
+    if let Some(unit_id) = payload.unit_id {
+        notify_units(&state, [unit_id]).await;
+    }
+
     Ok((
         StatusCode::CREATED,
         Json(serde_json::json!({
@@ -162,9 +218,11 @@ pub async fn update_equipment(
     }
 
     let exists = crate::service::get_equipment_by_id(&state.pool, equipment_id).await?;
-    if exists.is_none() {
+    let existing_equipment = if let Some(equipment) = exists {
+        equipment
+    } else {
         return Err(ApiErr::NotFound("Equipment not found".to_string(), None));
-    }
+    };
 
     if let Some(Some(unit_id)) = payload.unit_id {
         let unit_exists = crate::service::get_unit_by_id(&state.pool, unit_id).await?;
@@ -197,6 +255,19 @@ pub async fn update_equipment(
     )
     .await?;
 
+    let mut unit_ids = Vec::new();
+    if let Some(unit_id) = existing_equipment.unit_id {
+        unit_ids.push(unit_id);
+    }
+    let next_unit_id = match payload.unit_id {
+        Some(next) => next,
+        None => existing_equipment.unit_id,
+    };
+    if let Some(unit_id) = next_unit_id {
+        unit_ids.push(unit_id);
+    }
+    notify_units(&state, unit_ids).await;
+
     Ok(Json(serde_json::json!({
         "ok_msg": "Equipment updated successfully"
     })))
@@ -222,6 +293,9 @@ pub async fn batch_set_equipment_unit(
         }
     }
 
+    let before_unit_ids =
+        crate::service::get_unit_ids_by_equipment_ids(&state.pool, &payload.equipment_ids).await?;
+
     let updated_count = crate::service::batch_set_equipment_unit(
         &state.pool,
         &payload.equipment_ids,
@@ -229,6 +303,12 @@ pub async fn batch_set_equipment_unit(
     )
     .await?;
 
+    let mut unit_ids = before_unit_ids;
+    if let Some(unit_id) = payload.unit_id {
+        unit_ids.push(unit_id);
+    }
+    notify_units(&state, unit_ids).await;
+
     Ok(Json(serde_json::json!({
         "ok_msg": "Equipment unit updated successfully",
         "updated_count": updated_count
@@ -239,10 +319,13 @@ pub async fn delete_equipment(
     State(state): State<AppState>,
     Path(equipment_id): Path<Uuid>,
 ) -> Result<impl IntoResponse, ApiErr> {
+    let unit_ids = crate::service::get_unit_ids_by_equipment_ids(&state.pool, &[equipment_id]).await?;
     let deleted = crate::service::delete_equipment(&state.pool, equipment_id).await?;
     if !deleted {
         return Err(ApiErr::NotFound("Equipment not found".to_string(), None));
     }
 
+    notify_units(&state, unit_ids).await;
+
     Ok(StatusCode::NO_CONTENT)
 }

src/handler/log.rs

@@ -46,6 +46,13 @@ pub struct LogChunkResponse {
     pub reset: bool,
 }
 
+#[derive(Debug, Clone, PartialEq, Eq)]
+struct StreamFileState {
+    path: PathBuf,
+    file_name: String,
+    cursor: u64,
+}
+
 pub async fn get_logs(Query(query): Query<LogQuery>) -> Result<impl IntoResponse, ApiErr> {
     let path = resolve_log_file(query.file.as_deref()).await?;
     let file_name = file_name_of(&path);
@@ -74,17 +81,44 @@ pub async fn stream_logs(Query(query): Query<LogQuery>) -> Result<impl IntoRespo
         .max_bytes
         .unwrap_or(STREAM_MAX_BYTES)
         .clamp(1, MAX_MAX_BYTES);
+    let follow_latest = query.file.is_none();
     let start_cursor = query.cursor.unwrap_or(file_len(&path).await?);
 
     let event_stream = stream! {
         let mut ticker = interval(Duration::from_millis(800));
-        let mut cursor = start_cursor;
+        let mut stream_file = StreamFileState {
+            path,
+            file_name,
+            cursor: start_cursor,
+        };
 
         loop {
             ticker.tick().await;
-            match read_since(&path, &file_name, cursor, max_bytes).await {
+            let switched = if follow_latest {
+                match latest_log_file(Path::new(LOG_DIR)).await {
+                    Ok(latest_path) => {
+                        let latest = StreamFileState {
+                            file_name: file_name_of(&latest_path),
+                            path: latest_path,
+                            cursor: 0,
+                        };
+                        let (next, switched) = advance_stream_file(&stream_file, &latest);
+                        stream_file = next;
+                        switched
+                    }
+                    Err(_) => false,
+                }
+            } else {
+                false
+            };
+
+            match read_since(&stream_file.path, &stream_file.file_name, stream_file.cursor, max_bytes).await {
                 Ok(chunk) => {
-                    cursor = chunk.cursor;
+                    stream_file.cursor = chunk.cursor;
+                    let chunk = LogChunkResponse {
+                        reset: chunk.reset || switched,
+                        ..chunk
+                    };
                     if chunk.reset || !chunk.lines.is_empty() {
                         match Event::default().event("log").json_data(&chunk) {
                             Ok(event) => yield Ok::<Event, Infallible>(event),
@@ -267,9 +301,54 @@ fn file_name_of(path: &Path) -> String {
         .to_string()
 }
 
+fn advance_stream_file(
+    current: &StreamFileState,
+    latest: &StreamFileState,
+) -> (StreamFileState, bool) {
+    if current.path == latest.path {
+        return (current.clone(), false);
+    }
+
+    (
+        StreamFileState {
+            path: latest.path.clone(),
+            file_name: latest.file_name.clone(),
+            cursor: 0,
+        },
+        true,
+    )
+}
+
 fn map_open_err(err: std::io::Error) -> ApiErr {
     match err.kind() {
         std::io::ErrorKind::NotFound => ApiErr::NotFound("log file not found".to_string(), None),
         _ => ApiErr::Internal("failed to access log file".to_string(), None),
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::{advance_stream_file, StreamFileState};
+    use std::path::PathBuf;
+
+    #[test]
+    fn advance_stream_file_switches_to_latest_file_and_resets_cursor() {
+        let current = StreamFileState {
+            path: PathBuf::from("logs/app.log"),
+            file_name: "app.log".to_string(),
+            cursor: 128,
+        };
+        let latest = StreamFileState {
+            path: PathBuf::from("logs/app.log.1"),
+            file_name: "app.log.1".to_string(),
+            cursor: 42,
+        };
+
+        let (next, switched) = advance_stream_file(&current, &latest);
+
+        assert!(switched);
+        assert_eq!(next.path, latest.path);
+        assert_eq!(next.file_name, latest.file_name);
+        assert_eq!(next.cursor, 0);
+    }
+}

src/handler/point.rs

@@ -21,6 +21,18 @@ use crate::{
     AppState,
 };
 
+async fn notify_units(
+    state: &AppState,
+    unit_ids: impl IntoIterator<Item = Uuid>,
+) {
+    let mut seen = std::collections::HashSet::new();
+    for unit_id in unit_ids {
+        if seen.insert(unit_id) {
+            state.control_runtime.notify_unit(unit_id).await;
+        }
+    }
+}
+
 /// List all points.
 #[derive(Deserialize, Validate)]
 pub struct GetPointListQuery {
@@ -161,12 +173,14 @@ pub struct UpdatePointReq {
 /// Request payload for batch setting point tags.
 #[derive(Deserialize, Validate)]
 pub struct BatchSetPointTagsReq {
+    #[validate(length(min = 1, max = 500))]
     pub point_ids: Vec<Uuid>,
     pub tag_id: Option<Uuid>,
 }
 
 #[derive(Deserialize, Validate)]
 pub struct BatchSetPointEquipmentReq {
+    #[validate(length(min = 1, max = 500))]
     pub point_ids: Vec<Uuid>,
     pub equipment_id: Option<Uuid>,
     pub signal_role: Option<String>,
@@ -225,6 +239,7 @@ pub async fn update_point(
     if existing_point.is_none() {
         return Err(ApiErr::NotFound("Point not found".to_string(), None));
     }
+    let before_unit_ids = crate::service::get_unit_ids_by_point_ids(pool, &[point_id]).await?;
 
     let mut qb: QueryBuilder<sqlx::Postgres> = QueryBuilder::new("UPDATE point SET ");
     let mut wrote_field = false;
@@ -280,6 +295,9 @@ pub async fn update_point(
     qb.push(" WHERE id = ").push_bind(point_id);
     qb.build().execute(pool).await?;
 
+    let after_unit_ids = crate::service::get_unit_ids_by_point_ids(pool, &[point_id]).await?;
+    notify_units(&state, before_unit_ids.into_iter().chain(after_unit_ids)).await;
+
     Ok(Json(
         serde_json::json!({"ok_msg": "Point updated successfully"}),
     ))
@@ -380,6 +398,8 @@ pub async fn batch_set_point_equipment(
         return Err(ApiErr::NotFound("No valid points found".to_string(), None));
     }
 
+    let before_unit_ids = crate::service::get_unit_ids_by_point_ids(pool, &existing_points).await?;
+
     let result = sqlx::query(
         r#"
         UPDATE point
@@ -395,6 +415,9 @@ pub async fn batch_set_point_equipment(
     .execute(pool)
     .await?;
 
+    let after_unit_ids = crate::service::get_unit_ids_by_point_ids(pool, &existing_points).await?;
+    notify_units(&state, before_unit_ids.into_iter().chain(after_unit_ids)).await;
+
     Ok(Json(serde_json::json!({
         "ok_msg": "Point equipment updated successfully",
         "updated_count": result.rows_affected()
@@ -407,6 +430,7 @@ pub async fn delete_point(
     Path(point_id): Path<Uuid>,
 ) -> Result<impl IntoResponse, ApiErr> {
     let pool = &state.pool;
+    let affected_unit_ids = crate::service::get_unit_ids_by_point_ids(pool, &[point_id]).await?;
 
     let source_id = {
         let grouped = crate::service::get_points_grouped_by_source(pool, &[point_id]).await?;
@@ -440,6 +464,8 @@ pub async fn delete_point(
         }
     }
 
+    notify_units(&state, affected_unit_ids).await;
+
     Ok(Json(
         serde_json::json!({"ok_msg": "Point deleted successfully"}),
     ))
@@ -448,6 +474,7 @@ pub async fn delete_point(
 #[derive(Deserialize, Validate)]
 /// Request payload for batch point creation from node ids.
 pub struct BatchCreatePointsReq {
+    #[validate(length(min = 1, max = 500))]
     pub node_ids: Vec<Uuid>,
 }
 
@@ -563,6 +590,7 @@ pub async fn batch_create_points(
 #[derive(Deserialize, Validate)]
 /// Request payload for batch point deletion.
 pub struct BatchDeletePointsReq {
+    #[validate(length(min = 1, max = 500))]
     pub point_ids: Vec<Uuid>,
 }
 
@@ -590,6 +618,7 @@ pub async fn batch_delete_points(
     let point_ids = payload.point_ids;
 
     let grouped = crate::service::get_points_grouped_by_source(pool, &point_ids).await?;
+    let affected_unit_ids = crate::service::get_unit_ids_by_point_ids(pool, &point_ids).await?;
     let existing_point_ids: Vec<Uuid> = grouped
         .values()
         .flat_map(|points| points.iter().map(|p| p.point_id))
@@ -617,6 +646,8 @@ pub async fn batch_delete_points(
         }
     }
 
+    notify_units(&state, affected_unit_ids).await;
+
     Ok(Json(BatchDeletePointsRes {
         deleted_count: result.rows_affected(),
     }))

src/handler/source.rs

@@ -171,23 +171,24 @@ fn build_node_tree(nodes: Vec<Node>) -> Vec<TreeNode> {
         id: Uuid,
         node_map: &mut HashMap<Uuid, TreeNode>,
         children_map: &HashMap<Uuid, Vec<Uuid>>,
-    ) -> TreeNode {
-        let mut node = node_map.remove(&id).unwrap();
+    ) -> Option<TreeNode> {
+        let mut node = node_map.remove(&id)?;
 
         if let Some(child_ids) = children_map.get(&id) {
             for &cid in child_ids {
-                let child = attach_children(cid, node_map, children_map);
+                if let Some(child) = attach_children(cid, node_map, children_map) {
                     node.children.push(child);
                 }
             }
+        }
 
-        node
+        Some(node)
     }
 
     // ③ 生成最终树
     roots
         .into_iter()
-        .map(|rid| attach_children(rid, &mut node_map, &children_map))
+        .filter_map(|rid| attach_children(rid, &mut node_map, &children_map))
         .collect()
 }
 
@@ -311,19 +312,19 @@ pub async fn delete_source(
 ) -> Result<impl IntoResponse, ApiErr> {
     let pool = &state.pool;
 
-    // 删除source
-    let result = sqlx::query("DELETE FROM source WHERE id = $1")
+    let source_name = sqlx::query_scalar::<_, String>("SELECT name FROM source WHERE id = $1")
+        .bind(source_id)
+        .fetch_optional(pool)
+        .await?
+        .ok_or_else(|| ApiErr::NotFound(format!("Source with id {} not found", source_id), None))?;
+
+    sqlx::query("DELETE FROM source WHERE id = $1")
         .bind(source_id)
         .execute(pool)
         .await?;
 
-    // 检查是否删除了记录
-    if result.rows_affected() == 0 {
-        return Err(ApiErr::NotFound(format!("Source with id {} not found", source_id), None));
-    }
-
     // 触发 SourceDelete 事件
-    let _ = state.event_manager.send(crate::event::AppEvent::SourceDelete { source_id });
+    let _ = state.event_manager.send(crate::event::AppEvent::SourceDelete { source_id, source_name });
 
     Ok(StatusCode::NO_CONTENT)
 }

src/main.rs

@@ -104,6 +104,9 @@ async fn main() {
         control_runtime: control_runtime.clone(),
     };
     control::engine::start(state.clone(), control_runtime);
+    if config.simulate_plc {
+        control::simulate::start(state.clone());
+    }
     let app = build_router(state.clone());
     let addr = format!("{}:{}", config.server_host, config.server_port);
     tracing::info!("Starting server at http://{}", addr);
@@ -277,7 +280,8 @@ fn build_router(state: AppState) -> Router {
         )
         .route("/api/logs", get(handler::log::get_logs))
         .route("/api/logs/stream", get(handler::log::stream_logs))
-        .route("/api/docs/api-md", get(handler::doc::get_api_md));
+        .route("/api/docs/api-md", get(handler::doc::get_api_md))
+        .route("/api/docs/readme-md", get(handler::doc::get_readme_md));
 
     Router::new()
         .merge(all_route)

src/service/control.rs

@@ -2,6 +2,14 @@ use crate::model::{ControlUnit, EventRecord};
 use sqlx::{PgPool, QueryBuilder, Row};
 use uuid::Uuid;
 
+fn unit_order_clause() -> &'static str {
+    "code"
+}
+
+fn equipment_order_clause_with_unit() -> &'static str {
+    "unit_id, code"
+}
+
 #[derive(Debug, Clone)]
 pub struct EquipmentRolePoint {
     pub point_id: Uuid,
@@ -35,31 +43,36 @@ pub async fn get_units_paginated(
     page_size: i32,
     offset: u32,
 ) -> Result<Vec<ControlUnit>, sqlx::Error> {
+    let unit_order = unit_order_clause();
     match keyword {
         Some(keyword) => {
             let like = format!("%{}%", keyword);
             if page_size == -1 {
-                sqlx::query_as::<_, ControlUnit>(
+                let sql = format!(
                     r#"
                     SELECT *
                     FROM unit
                     WHERE code ILIKE $1 OR name ILIKE $1
-                    ORDER BY created_at
+                    ORDER BY {}
                     "#,
-                )
+                    unit_order
+                );
+                sqlx::query_as::<_, ControlUnit>(&sql)
                 .bind(like)
                 .fetch_all(pool)
                 .await
             } else {
-                sqlx::query_as::<_, ControlUnit>(
+                let sql = format!(
                     r#"
                     SELECT *
                     FROM unit
                     WHERE code ILIKE $1 OR name ILIKE $1
-                    ORDER BY created_at
+                    ORDER BY {}
                     LIMIT $2 OFFSET $3
                     "#,
-                )
+                    unit_order
+                );
+                sqlx::query_as::<_, ControlUnit>(&sql)
                 .bind(like)
                 .bind(page_size as i64)
                 .bind(offset as i64)
@@ -69,18 +82,21 @@ pub async fn get_units_paginated(
         }
         None => {
             if page_size == -1 {
-                sqlx::query_as::<_, ControlUnit>(r#"SELECT * FROM unit ORDER BY created_at"#)
+                let sql = format!("SELECT * FROM unit ORDER BY {}", unit_order);
+                sqlx::query_as::<_, ControlUnit>(&sql)
                     .fetch_all(pool)
                     .await
             } else {
-                sqlx::query_as::<_, ControlUnit>(
+                let sql = format!(
                     r#"
                     SELECT *
                     FROM unit
-                    ORDER BY created_at
+                    ORDER BY {}
                     LIMIT $1 OFFSET $2
                     "#,
-                )
+                    unit_order
+                );
+                sqlx::query_as::<_, ControlUnit>(&sql)
                 .bind(page_size as i64)
                 .bind(offset as i64)
                 .fetch_all(pool)
@@ -309,9 +325,28 @@ pub async fn get_events_paginated(
 }
 
 pub async fn get_all_enabled_units(pool: &PgPool) -> Result<Vec<ControlUnit>, sqlx::Error> {
-    sqlx::query_as::<_, ControlUnit>(
-        r#"SELECT * FROM unit WHERE enabled = TRUE ORDER BY created_at"#,
-    )
+    let sql = format!(
+        "SELECT * FROM unit WHERE enabled = TRUE ORDER BY {}",
+        unit_order_clause()
+    );
+    sqlx::query_as::<_, ControlUnit>(&sql)
+    .fetch_all(pool)
+    .await
+}
+
+pub async fn get_equipment_by_unit_ids(
+    pool: &PgPool,
+    unit_ids: &[Uuid],
+) -> Result<Vec<crate::model::Equipment>, sqlx::Error> {
+    if unit_ids.is_empty() {
+        return Ok(vec![]);
+    }
+    let sql = format!(
+        "SELECT * FROM equipment WHERE unit_id = ANY($1) ORDER BY {}",
+        equipment_order_clause_with_unit()
+    );
+    sqlx::query_as::<_, crate::model::Equipment>(&sql)
+    .bind(unit_ids)
     .fetch_all(pool)
     .await
 }
@@ -320,9 +355,11 @@ pub async fn get_equipment_by_unit_id(
     pool: &PgPool,
     unit_id: Uuid,
 ) -> Result<Vec<crate::model::Equipment>, sqlx::Error> {
-    sqlx::query_as::<_, crate::model::Equipment>(
-        r#"SELECT * FROM equipment WHERE unit_id = $1 ORDER BY created_at"#,
-    )
+    let sql = format!(
+        "SELECT * FROM equipment WHERE unit_id = $1 ORDER BY {}",
+        unit_order_clause()
+    );
+    sqlx::query_as::<_, crate::model::Equipment>(&sql)
     .bind(unit_id)
     .fetch_all(pool)
     .await
@@ -343,6 +380,105 @@ pub async fn get_points_by_equipment_ids(
     .await
 }
 
+pub async fn get_unit_ids_by_equipment_ids(
+    pool: &PgPool,
+    equipment_ids: &[Uuid],
+) -> Result<Vec<Uuid>, sqlx::Error> {
+    if equipment_ids.is_empty() {
+        return Ok(vec![]);
+    }
+
+    let rows = sqlx::query_scalar::<_, Uuid>(
+        r#"
+        SELECT DISTINCT unit_id
+        FROM equipment
+        WHERE id = ANY($1)
+          AND unit_id IS NOT NULL
+        "#,
+    )
+    .bind(equipment_ids)
+    .fetch_all(pool)
+    .await?;
+
+    Ok(rows)
+}
+
+pub async fn get_unit_ids_by_point_ids(
+    pool: &PgPool,
+    point_ids: &[Uuid],
+) -> Result<Vec<Uuid>, sqlx::Error> {
+    if point_ids.is_empty() {
+        return Ok(vec![]);
+    }
+
+    let rows = sqlx::query_scalar::<_, Uuid>(
+        r#"
+        SELECT DISTINCT e.unit_id
+        FROM point p
+        INNER JOIN equipment e ON e.id = p.equipment_id
+        WHERE p.id = ANY($1)
+          AND e.unit_id IS NOT NULL
+        "#,
+    )
+    .bind(point_ids)
+    .fetch_all(pool)
+    .await?;
+
+    Ok(rows)
+}
+
+pub struct EquipmentSignalRole {
+    pub equipment_id: Uuid,
+    pub point_id: Uuid,
+    pub signal_role: String,
+}
+
+/// Batch fetch all signal-role points for multiple equipment IDs in one query.
+pub async fn get_signal_role_points_batch(
+    pool: &PgPool,
+    equipment_ids: &[Uuid],
+) -> Result<Vec<EquipmentSignalRole>, sqlx::Error> {
+    if equipment_ids.is_empty() {
+        return Ok(vec![]);
+    }
+    let rows = sqlx::query(
+        r#"
+        SELECT p.equipment_id, p.id AS point_id, p.signal_role
+        FROM point p
+        WHERE p.equipment_id = ANY($1)
+          AND p.signal_role IS NOT NULL
+        ORDER BY p.equipment_id, p.created_at
+        "#,
+    )
+    .bind(equipment_ids)
+    .fetch_all(pool)
+    .await?;
+
+    Ok(rows
+        .into_iter()
+        .map(|row| EquipmentSignalRole {
+            equipment_id: row.get("equipment_id"),
+            point_id: row.get("point_id"),
+            signal_role: row.get("signal_role"),
+        })
+        .collect())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::{equipment_order_clause_with_unit, unit_order_clause};
+
+    #[test]
+    fn unit_ordering_defaults_to_code() {
+        assert_eq!(unit_order_clause(), "code");
+    }
+
+    #[test]
+    fn unit_equipment_ordering_uses_code_within_unit() {
+        assert_eq!(equipment_order_clause_with_unit(), "unit_id, code");
+    }
+}
+
 pub async fn get_equipment_role_points(
     pool: &PgPool,
     equipment_id: Uuid,

src/service/equipment.rs

@@ -5,6 +5,10 @@ use crate::{
 use sqlx::{query_as, PgPool, Row};
 use uuid::Uuid;
 
+fn equipment_order_clause() -> &'static str {
+    "e.code"
+}
+
 pub async fn get_points_by_equipment_id(
     pool: &PgPool,
     equipment_id: uuid::Uuid,
@@ -49,11 +53,12 @@ pub async fn get_equipment_paginated(
     page_size: i32,
     offset: u32,
 ) -> Result<Vec<EquipmentListItem>, sqlx::Error> {
+    let equipment_order = equipment_order_clause();
     let rows = match keyword {
         Some(keyword) => {
             let like = format!("%{}%", keyword);
             if page_size == -1 {
-                sqlx::query(
+                let sql = format!(
                     r#"
                     SELECT
                         e.*,
@@ -62,14 +67,16 @@ pub async fn get_equipment_paginated(
                     LEFT JOIN point p ON p.equipment_id = e.id
                     WHERE e.code ILIKE $1 OR e.name ILIKE $1
                     GROUP BY e.id
-                    ORDER BY e.created_at
+                    ORDER BY {}
                     "#,
-                )
+                    equipment_order
+                );
+                sqlx::query(&sql)
                 .bind(like)
                 .fetch_all(pool)
                 .await?
             } else {
-                sqlx::query(
+                let sql = format!(
                     r#"
                     SELECT
                         e.*,
@@ -78,10 +85,12 @@ pub async fn get_equipment_paginated(
                     LEFT JOIN point p ON p.equipment_id = e.id
                     WHERE e.code ILIKE $1 OR e.name ILIKE $1
                     GROUP BY e.id
-                    ORDER BY e.created_at
+                    ORDER BY {}
                     LIMIT $2 OFFSET $3
                     "#,
-                )
+                    equipment_order
+                );
+                sqlx::query(&sql)
                 .bind(like)
                 .bind(page_size as i64)
                 .bind(offset as i64)
@@ -91,7 +100,7 @@ pub async fn get_equipment_paginated(
         }
         None => {
             if page_size == -1 {
-                sqlx::query(
+                let sql = format!(
                     r#"
                     SELECT
                         e.*,
@@ -99,13 +108,15 @@ pub async fn get_equipment_paginated(
                     FROM equipment e
                     LEFT JOIN point p ON p.equipment_id = e.id
                     GROUP BY e.id
-                    ORDER BY e.created_at
+                    ORDER BY {}
                     "#,
-                )
+                    equipment_order
+                );
+                sqlx::query(&sql)
                 .fetch_all(pool)
                 .await?
             } else {
-                sqlx::query(
+                let sql = format!(
                     r#"
                     SELECT
                         e.*,
@@ -113,10 +124,12 @@ pub async fn get_equipment_paginated(
                     FROM equipment e
                     LEFT JOIN point p ON p.equipment_id = e.id
                     GROUP BY e.id
-                    ORDER BY e.created_at
+                    ORDER BY {}
                     LIMIT $1 OFFSET $2
                     "#,
-                )
+                    equipment_order
+                );
+                sqlx::query(&sql)
                 .bind(page_size as i64)
                 .bind(offset as i64)
                 .fetch_all(pool)
@@ -139,6 +152,7 @@ pub async fn get_equipment_paginated(
                 updated_at: row.get("updated_at"),
             },
             point_count: row.get::<i64, _>("point_count"),
+            role_points: vec![],
         })
         .collect())
 }
@@ -283,3 +297,13 @@ pub async fn batch_set_equipment_unit(
 
     Ok(result.rows_affected())
 }
+
+#[cfg(test)]
+mod tests {
+    use super::equipment_order_clause;
+
+    #[test]
+    fn equipment_ordering_defaults_to_code() {
+        assert_eq!(equipment_order_clause(), "e.code");
+    }
+}

web/html/topbar.html

@@ -5,7 +5,7 @@
     <button type="button" class="tab-btn" id="tabConfig">配置</button>
   </div>
   <div class="topbar-actions">
-    <button type="button" class="secondary" id="clearEquipmentFilter">设备筛选: 全部</button>
+    <button type="button" class="secondary" id="openReadmeDoc">README.md</button>
     <button type="button" class="secondary" id="openApiDoc">API.md</button>
     <div class="status" id="statusText">
       <span class="ws-dot" id="wsDot"></span>

web/js/app.js

@@ -1,11 +1,10 @@
 import { withStatus } from "./api.js";
 import { openChart, renderChart } from "./chart.js";
 import { dom } from "./dom.js";
-import { closeApiDocDrawer, openApiDocDrawer } from "./docs.js";
+import { closeApiDocDrawer, openApiDocDrawer, openReadmeDrawer } from "./docs.js";
 import { loadEvents } from "./events.js";
 import {
   applyBatchEquipmentUnit,
-  clearEquipmentFilter,
   clearPointBinding,
   clearSelectedEquipments,
   closeEquipmentModal,
@@ -35,6 +34,8 @@ import { state } from "./state.js";
 import { loadSources, saveSource } from "./sources.js";
 import { closeUnitModal, loadUnits, openCreateUnitModal, resetUnitForm, renderUnits, saveUnit } from "./units.js";
 
+let _configLoaded = false;
+
 function switchView(view) {
   state.activeView = view;
   const main = document.querySelector("main");
@@ -60,6 +61,13 @@ function switchView(view) {
 
   if (view === "config") {
     startLogs();
+    if (!_configLoaded) {
+      _configLoaded = true;
+      withStatus((async () => {
+        await Promise.all([loadSources(), loadEquipments(), loadEvents()]);
+        await loadPoints();
+      })());
+    }
   } else {
     stopLogs();
   }
@@ -82,7 +90,6 @@ function bindEvents() {
   dom.refreshEquipmentBtn.addEventListener("click", () => withStatus(loadEquipments()));
   dom.newEquipmentBtn.addEventListener("click", openCreateEquipmentModal);
   dom.closeEquipmentModalBtn.addEventListener("click", closeEquipmentModal);
-  dom.clearEquipmentFilterBtn.addEventListener("click", () => withStatus(clearEquipmentFilter()));
   dom.applyEquipmentUnitBtn.addEventListener("click", () => withStatus(applyBatchEquipmentUnit()));
   dom.clearEquipmentSelectionBtn.addEventListener("click", clearSelectedEquipments);
 
@@ -123,6 +130,7 @@ function bindEvents() {
     });
   });
 
+  dom.openReadmeDocBtn.addEventListener("click", () => withStatus(openReadmeDrawer()));
   dom.openApiDocBtn.addEventListener("click", () => withStatus(openApiDocDrawer()));
   dom.closeApiDocBtn.addEventListener("click", closeApiDocDrawer);
   dom.refreshEventBtn.addEventListener("click", () => withStatus(loadEvents()));
@@ -161,7 +169,8 @@ function bindEvents() {
 
   document.addEventListener("equipments-updated", () => {
     renderUnits();
-    renderOpsUnits();
+    // Re-fetch units so embedded equipment data stays in sync with config changes.
+    loadUnits().catch(() => {});
   });
 
   document.addEventListener("units-loaded", () => {
@@ -179,12 +188,8 @@ async function bootstrap() {
   renderChart();
   startPointSocket();
 
-  await withStatus(loadUnits());
+  await withStatus(Promise.all([loadUnits(), loadEvents()]));
   startOps();
-  await withStatus(loadSources());
-  await withStatus(loadEquipments());
-  await withStatus(loadEvents());
-  await withStatus(loadPoints());
 }
 
 bootstrap();

web/js/docs.js

@@ -82,11 +82,11 @@ function parseMarkdown(text) {
   return { html: blocks.join(""), headings };
 }
 
-export async function loadApiDoc() {
-  const text = await apiFetch("/api/docs/api-md");
+async function loadDoc(url, emptyMessage) {
+  const text = await apiFetch(url);
   const { html, headings } = parseMarkdown(text || "");
 
-  dom.apiDocContent.innerHTML = html || "<p>API.md 为空</p>";
+  dom.apiDocContent.innerHTML = html || `<p>${emptyMessage}</p>`;
   dom.apiDocToc.innerHTML = headings.length
     ? headings
         .map(
@@ -110,14 +110,25 @@ export async function loadApiDoc() {
       }
     });
   });
-
-  state.apiDocLoaded = true;
 }
 
 export async function openApiDocDrawer() {
+  const title = dom.apiDocDrawer.querySelector("h3");
+  if (title) title.textContent = "API.md";
   dom.apiDocDrawer.classList.remove("hidden");
-  if (!state.apiDocLoaded) {
-    await loadApiDoc();
+  if (state.docDrawerSource !== "api") {
+    state.docDrawerSource = "api";
+    await loadDoc("/api/docs/api-md", "API.md 为空");
+  }
+}
+
+export async function openReadmeDrawer() {
+  const title = dom.apiDocDrawer.querySelector("h3");
+  if (title) title.textContent = "README.md";
+  dom.apiDocDrawer.classList.remove("hidden");
+  if (state.docDrawerSource !== "readme") {
+    state.docDrawerSource = "readme";
+    await loadDoc("/api/docs/readme-md", "README.md 为空");
   }
 }
 

web/js/dom.js

@@ -20,7 +20,6 @@ export const dom = {
   selectedCount: byId("selectedCount"),
   selectedPointCount: byId("selectedPointCount"),
   pointFilterSummary: byId("pointFilterSummary"),
-  clearEquipmentFilterBtn: byId("clearEquipmentFilter"),
   pointSourceSelect: byId("pointSourceSelect"),
   pointSourceNodeCount: byId("pointSourceNodeCount"),
   openPointModalBtn: byId("openPointModal"),
@@ -82,6 +81,7 @@ export const dom = {
   batchBindingSignalRole: byId("batchBindingSignalRole"),
   apiDocToc: byId("apiDocToc"),
   apiDocContent: byId("apiDocContent"),
+  openReadmeDocBtn: byId("openReadmeDoc"),
   openApiDocBtn: byId("openApiDoc"),
   closeApiDocBtn: byId("closeApiDoc"),
   refreshChartBtn: byId("refreshChart"),

web/js/equipment.js

@@ -146,13 +146,6 @@ export function renderEquipments() {
   dom.equipmentList.innerHTML = "";
   updateSelectedEquipmentSummary();
 
-  const activeEquipment = state.selectedEquipmentId
-    ? state.equipmentMap.get(state.selectedEquipmentId) || null
-    : null;
-  dom.clearEquipmentFilterBtn.textContent = activeEquipment
-    ? `设备筛选 ${activeEquipment.name}`
-    : "设备筛选 全部";
-
   const items = filteredEquipments();
   if (!items.length) {
     dom.equipmentList.innerHTML = '<div class="list-item"><div class="muted">No equipment</div></div>';

web/js/events.js

@@ -14,8 +14,9 @@ function formatTime(value) {
 
 function makeCard(item) {
   const row = document.createElement("div");
+  const level = (item.level || "info").toLowerCase();
   row.className = "event-card";
-  row.innerHTML = `<div class="event-meta"><span class="badge">${(item.level || "info").toUpperCase()}</span><span class="muted event-time">${formatTime(item.created_at)}</span><strong class="event-type">${item.event_type}</strong></div><div class="event-message">${item.message}</div>`;
+  row.innerHTML = `<span class="badge event-badge level-${level}">${level.toUpperCase()}</span><span class="muted event-time">${formatTime(item.created_at)}</span><span class="event-type">${item.event_type}</span><span class="event-message">${item.message}</span>`;
   return row;
 }
 
@@ -71,6 +72,10 @@ export function prependEvent(item) {
   if (placeholder) placeholder.remove();
 
   dom.eventList.insertBefore(makeCard(item), dom.eventList.firstChild);
+
+  // Keep DOM bounded to prevent unbounded growth
+  const cards = dom.eventList.querySelectorAll(".event-card");
+  if (cards.length > 100) cards[cards.length - 1].remove();
 }
 
 dom.eventList.addEventListener("scroll", () => {

web/js/logs.js

@@ -3,7 +3,8 @@ import { dom } from "./dom.js";
 import { prependEvent } from "./events.js";
 import { formatValue } from "./points.js";
 import { state } from "./state.js";
-import { renderUnits } from "./units.js";
+import { loadUnits, renderUnits } from "./units.js";
+import { loadEquipments } from "./equipment.js";
 import { showToast } from "./api.js";
 
 function escapeHtml(text) {
@@ -16,7 +17,7 @@ function parseLogLine(line) {
   try { return JSON.parse(trimmed); } catch { return null; }
 }
 
-export function appendLog(line) {
+function appendLog(line) {
   if (!dom.logView) return;
   const atBottom = dom.logView.scrollTop + dom.logView.clientHeight >= dom.logView.scrollHeight - 10;
   const div = document.createElement("div");
@@ -39,11 +40,26 @@ export function appendLog(line) {
   if (atBottom) dom.logView.scrollTop = dom.logView.scrollHeight;
 }
 
+function appendLogDivider(text) {
+  if (!dom.logView) return;
+  const atBottom = dom.logView.scrollTop + dom.logView.clientHeight >= dom.logView.scrollHeight - 10;
+  const div = document.createElement("div");
+  div.className = "log-line muted";
+  div.textContent = text;
+  dom.logView.appendChild(div);
+  if (atBottom) dom.logView.scrollTop = dom.logView.scrollHeight;
+}
+
 export function startLogs() {
   if (state.logSource) return;
+  let currentLogFile = null;
   state.logSource = new EventSource("/api/logs/stream");
   state.logSource.addEventListener("log", (event) => {
     const data = JSON.parse(event.data);
+    if (data.reset && data.file && data.file !== currentLogFile) {
+      appendLogDivider(`[log switched to ${data.file}]`);
+    }
+    currentLogFile = data.file || currentLogFile;
     (data.lines || []).forEach(appendLog);
   });
   state.logSource.addEventListener("error", () => appendLog("[log stream error]"));
@@ -79,12 +95,23 @@ function setWsStatus(connected) {
   }
 }
 
+let _reconnectDelay = 1000;
+let _connectedOnce = false;
+
 export function startPointSocket() {
   const protocol = location.protocol === "https:" ? "wss" : "ws";
   const ws = new WebSocket(`${protocol}://${location.host}/ws/public`);
   state.pointSocket = ws;
 
-  ws.onopen = () => setWsStatus(true);
+  ws.onopen = () => {
+    setWsStatus(true);
+    _reconnectDelay = 1000;
+    if (_connectedOnce) {
+      loadUnits().catch(() => {});
+      if (state.activeView === "config") loadEquipments().catch(() => {});
+    }
+    _connectedOnce = true;
+  };
 
   ws.onmessage = (event) => {
     try {
@@ -101,12 +128,16 @@ export function startPointSocket() {
           entry.time.textContent = data.timestamp || "--";
         }
 
-        // ops view signal cell
+        // ops view signal pill
         const opsEntry = state.opsPointEls.get(data.point_id);
         if (opsEntry) {
-          opsEntry.valueEl.textContent = formatValue(data);
-          opsEntry.qualityEl.className = `badge quality-${(data.quality || "unknown").toLowerCase()}`;
-          opsEntry.qualityEl.textContent = (data.quality || "unknown").toUpperCase();
+          const { pillEl, syncBtns } = opsEntry;
+          state.opsSignalCache.set(data.point_id, { quality: data.quality, value_text: data.value_text });
+          const role = pillEl.dataset.opsRole;
+          import("./ops.js").then(({ sigPillClass }) => {
+            pillEl.className = sigPillClass(role, data.quality, data.value_text);
+            syncBtns?.();
+          });
         }
 
         if (state.chartPointId === data.point_id) {
@@ -126,7 +157,7 @@ export function startPointSocket() {
         // lazy import to avoid circular dep (ops.js -> logs.js -> ops.js)
         import("./ops.js").then(({ renderOpsUnits, syncEquipmentButtonsForUnit }) => {
           renderOpsUnits();
-          syncEquipmentButtonsForUnit(runtime.unit_id, runtime.auto_enabled);
+          syncEquipmentButtonsForUnit(runtime.unit_id);
         });
         return;
       }
@@ -137,7 +168,8 @@ export function startPointSocket() {
 
   ws.onclose = () => {
     setWsStatus(false);
-    window.setTimeout(startPointSocket, 2000);
+    window.setTimeout(startPointSocket, _reconnectDelay);
+    _reconnectDelay = Math.min(_reconnectDelay * 2, 30000);
   };
 
   ws.onerror = () => setWsStatus(false);

web/js/ops.js

@@ -1,12 +1,24 @@
 import { apiFetch } from "./api.js";
 import { dom } from "./dom.js";
-import { formatValue } from "./points.js";
 import { state } from "./state.js";
 import { loadUnits } from "./units.js";
 
 const SIGNAL_ROLES = ["rem", "run", "flt"];
 const ROLE_LABELS = { rem: "REM", run: "RUN", flt: "FLT" };
 
+function isSignalOn(quality, valueText) {
+  if (!quality || quality.toLowerCase() !== "good") return false;
+  const v = String(valueText ?? "").trim().toLowerCase();
+  return v === "1" || v === "true" || v === "on";
+}
+
+export function sigPillClass(role, quality, valueText) {
+  if (!quality || quality.toLowerCase() !== "good") return "sig-pill sig-warn";
+  const on = isSignalOn(quality, valueText);
+  if (!on) return "sig-pill";
+  return role === "flt" ? "sig-pill sig-fault" : "sig-pill sig-on";
+}
+
 function runtimeBadge(runtime) {
   if (!runtime) return '<span class="badge offline">OFFLINE</span>';
   if (runtime.comm_locked) return '<span class="badge offline">COMM ERR</span>';
@@ -34,7 +46,7 @@ export function renderOpsUnits() {
       <div class="ops-unit-item-meta">
         ${runtimeBadge(runtime)}
         <span class="badge ${unit.enabled ? "" : "offline"}">${unit.enabled ? "EN" : "DIS"}</span>
-        ${runtime ? `<span class="muted">Acc ${Math.floor(runtime.accumulated_run_sec / 1000)}s</span>` : ""}
+        ${runtime ? `<span class="muted">Acc ${Math.floor(runtime.display_acc_sec / 1000)}s</span>` : ""}
       </div>
       <div class="ops-unit-item-actions"></div>
     `;
@@ -43,10 +55,14 @@ export function renderOpsUnits() {
     const actions = item.querySelector(".ops-unit-item-actions");
 
     const isAutoOn = runtime?.auto_enabled;
+    const startBlocked = !isAutoOn && (runtime?.fault_locked || runtime?.manual_ack_required);
     const autoBtn = document.createElement("button");
     autoBtn.className = isAutoOn ? "danger" : "secondary";
     autoBtn.textContent = isAutoOn ? "Stop Auto" : "Start Auto";
-    autoBtn.title = isAutoOn ? "停止自动控制" : "启动自动控制";
+    autoBtn.disabled = startBlocked;
+    autoBtn.title = startBlocked
+      ? (runtime?.fault_locked ? "设备故障中，无法启动自动控制" : "需人工确认故障后才可启动自动控制")
+      : (isAutoOn ? "停止自动控制" : "启动自动控制");
     autoBtn.addEventListener("click", (e) => {
       e.stopPropagation();
       apiFetch(`/api/control/unit/${unit.id}/${isAutoOn ? "stop-auto" : "start-auto"}`, { method: "POST" })
@@ -71,41 +87,30 @@ export function renderOpsUnits() {
   });
 }
 
-async function selectOpsUnit(unitId) {
+function selectOpsUnit(unitId) {
   state.selectedOpsUnitId = unitId === state.selectedOpsUnitId ? null : unitId;
   renderOpsUnits();
+  state.opsPointEls.clear();
 
   if (!state.selectedOpsUnitId) {
-    await loadAllEquipmentCards();
+    renderOpsEquipments(state.units.flatMap((u) => u.equipments || []));
     return;
   }
 
-  dom.opsEquipmentArea.innerHTML = '<div class="muted ops-placeholder">加载中...</div>';
-  state.opsPointEls.clear();
-
-  const detail = await apiFetch(`/api/unit/${state.selectedOpsUnitId}/detail`);
-  renderOpsEquipments(detail.equipments || []);
+  const unit = state.unitMap.get(unitId);
+  renderOpsEquipments(unit ? (unit.equipments || []) : []);
 }
 
-export async function loadAllEquipmentCards() {
+export function loadAllEquipmentCards() {
   if (!dom.opsEquipmentArea) return;
-  if (!state.units.length) {
-    dom.opsEquipmentArea.innerHTML = '<div class="muted ops-placeholder">暂无控制单元</div>';
-    return;
-  }
-
-  dom.opsEquipmentArea.innerHTML = '<div class="muted ops-placeholder">加载中...</div>';
   state.opsPointEls.clear();
-
-  const details = await Promise.all(
-    state.units.map((u) => apiFetch(`/api/unit/${u.id}/detail`).catch(() => ({ equipments: [] })))
-  );
-  const allEquipments = details.flatMap((d) => d.equipments || []);
-  renderOpsEquipments(allEquipments);
+  renderOpsEquipments(state.units.flatMap((u) => u.equipments || []));
 }
 
 function renderOpsEquipments(equipments) {
   dom.opsEquipmentArea.innerHTML = "";
+  state.opsUnitSyncFns.clear();
+
   if (!equipments.length) {
     dom.opsEquipmentArea.innerHTML = '<div class="muted ops-placeholder">该单元下暂无设备</div>';
     return;
@@ -115,25 +120,18 @@ function renderOpsEquipments(equipments) {
     const card = document.createElement("div");
     card.className = "ops-eq-card";
 
-    // Build role → point map
     const roleMap = {};
-    (eq.points || []).forEach((p) => {
-      if (p.signal_role) roleMap[p.signal_role] = p;
-    });
+    (eq.role_points || []).forEach((p) => { roleMap[p.signal_role] = p; });
 
-    // Signal rows HTML (placeholders; WS will fill values)
+    // Signal pills — one pill per bound role, text label inside
     const signalRowsHtml = SIGNAL_ROLES.map((role) => {
       const point = roleMap[role];
       if (!point) return "";
-      return `
-        <div class="ops-signal-row">
-          <span class="ops-signal-label">${ROLE_LABELS[role] || role}</span>
-          <span class="badge quality-unknown" data-ops-quality="${point.id}">?</span>
-          <span class="ops-signal-value" data-ops-value="${point.id}">--</span>
-        </div>`;
+      return `<span class="sig-pill sig-warn" data-ops-dot="${point.point_id}" data-ops-role="${role}">${ROLE_LABELS[role] || role}</span>`;
     }).join("");
 
     const canControl = eq.kind === "coal_feeder" || eq.kind === "distributor";
+    const unitId = eq.unit_id ?? null;
 
     card.innerHTML = `
       <div class="ops-eq-card-head">
@@ -141,55 +139,77 @@ function renderOpsEquipments(equipments) {
         <span class="badge">${eq.kind || "--"}</span>
       </div>
       <div class="ops-signal-rows">${signalRowsHtml || '<span class="muted" style="font-size:11px;padding:2px 0">无绑定信号</span>'}</div>
-      ${canControl ? `<div class="ops-eq-card-actions" data-unit-id="${eq.unit_id || ""}"></div>` : ""}
+      ${canControl ? `<div class="ops-eq-card-actions" data-unit-id="${unitId || ""}"></div>` : ""}
     `;
 
+    let syncBtns = null;
+
     if (canControl) {
       const actions = card.querySelector(".ops-eq-card-actions");
-      const autoOn = !!(eq.unit_id && state.runtimes.get(eq.unit_id)?.auto_enabled);
+      const remPointId = roleMap["rem"]?.point_id ?? null;
+      const fltPointId = roleMap["flt"]?.point_id ?? null;
+
       const startBtn = document.createElement("button");
       startBtn.className = "secondary";
       startBtn.textContent = "Start";
-      startBtn.disabled = autoOn;
-      startBtn.title = autoOn ? "自动控制运行中，请先停止自动" : "";
       startBtn.addEventListener("click", () =>
         apiFetch(`/api/control/equipment/${eq.id}/start`, { method: "POST" }).catch(() => {})
       );
       const stopBtn = document.createElement("button");
       stopBtn.className = "danger";
       stopBtn.textContent = "Stop";
-      stopBtn.disabled = autoOn;
-      stopBtn.title = autoOn ? "自动控制运行中，请先停止自动" : "";
       stopBtn.addEventListener("click", () =>
         apiFetch(`/api/control/equipment/${eq.id}/stop`, { method: "POST" }).catch(() => {})
       );
       actions.append(startBtn, stopBtn);
+
+      syncBtns = function () {
+        const autoOn = !!(unitId && state.runtimes.get(unitId)?.auto_enabled);
+        const remSig = remPointId ? state.opsSignalCache.get(remPointId) : null;
+        const fltSig = fltPointId ? state.opsSignalCache.get(fltPointId) : null;
+        const remOk = !remPointId || isSignalOn(remSig?.quality, remSig?.value_text);
+        const fltActive = !!(fltPointId && isSignalOn(fltSig?.quality, fltSig?.value_text));
+        const disabled = autoOn || !remOk || fltActive;
+        const title = autoOn ? "自动控制运行中，请先停止自动"
+          : !remOk ? "设备未切换至远程模式"
+          : fltActive ? "设备故障中"
+          : "";
+        startBtn.disabled = disabled;
+        stopBtn.disabled = disabled;
+        startBtn.title = title;
+        stopBtn.title = title;
+      };
     }
 
     dom.opsEquipmentArea.appendChild(card);
 
-    // Register DOM elements for WS updates, then seed from cached monitor data
+    // Register pills for WS updates; seed signal cache from initial point_monitor data
     SIGNAL_ROLES.forEach((role) => {
       const point = roleMap[role];
       if (!point) return;
-      const valueEl = card.querySelector(`[data-ops-value="${point.id}"]`);
-      const qualityEl = card.querySelector(`[data-ops-quality="${point.id}"]`);
-      if (valueEl && qualityEl) {
-        state.opsPointEls.set(point.id, { valueEl, qualityEl });
+      const pillEl = card.querySelector(`[data-ops-dot="${point.point_id}"]`);
+      if (!pillEl) return;
       if (point.point_monitor) {
         const m = point.point_monitor;
-          valueEl.textContent = formatValue(m);
-          qualityEl.className = `badge quality-${(m.quality || "unknown").toLowerCase()}`;
-          qualityEl.textContent = (m.quality || "unknown").toUpperCase();
-        }
+        state.opsSignalCache.set(point.point_id, { quality: m.quality, value_text: m.value_text });
+        pillEl.className = sigPillClass(role, m.quality, m.value_text);
       }
+      const isSyncRole = canControl && (role === "rem" || role === "flt");
+      state.opsPointEls.set(point.point_id, { pillEl, syncBtns: isSyncRole ? syncBtns : null });
     });
+
+    if (canControl) {
+      syncBtns();
+      if (unitId) {
+        if (!state.opsUnitSyncFns.has(unitId)) state.opsUnitSyncFns.set(unitId, new Set());
+        state.opsUnitSyncFns.get(unitId).add(syncBtns);
+      }
+    }
   });
 }
 
 export function startOps() {
   renderOpsUnits();
-  loadAllEquipmentCards();
 
   dom.batchStartAutoBtn?.addEventListener("click", () => {
     apiFetch("/api/control/unit/batch-start-auto", { method: "POST" })
@@ -204,15 +224,7 @@ export function startOps() {
   });
 }
 
-/** Called by WS handler when a unit's runtime changes — syncs manual button disabled state. */
-export function syncEquipmentButtonsForUnit(unitId, autoEnabled) {
-  if (!dom.opsEquipmentArea) return;
-  dom.opsEquipmentArea
-    .querySelectorAll(`.ops-eq-card-actions[data-unit-id="${unitId}"]`)
-    .forEach((actions) => {
-      actions.querySelectorAll("button").forEach((btn) => {
-        btn.disabled = autoEnabled;
-        btn.title = autoEnabled ? "自动控制运行中，请先停止自动" : "";
-      });
-    });
+/** Called by WS handler when a unit's runtime changes — re-evaluates all equipment button states. */
+export function syncEquipmentButtonsForUnit(unitId) {
+  state.opsUnitSyncFns.get(unitId)?.forEach((fn) => fn());
 }

web/js/state.js

@@ -19,10 +19,12 @@ export const state = {
   chartPointName: "",
   chartData: [],
   pointSocket: null,
-  apiDocLoaded: false,
+  docDrawerSource: null,  // null | "api" | "readme"
   runtimes: new Map(),  // unit_id -> UnitRuntime
   activeView: "ops",   // "ops" | "config"
-  opsPointEls: new Map(), // point_id -> { valueEl, qualityEl }
+  opsPointEls: new Map(),    // point_id -> { pillEl, syncBtns? }
+  opsSignalCache: new Map(), // point_id -> { quality, value_text }
+  opsUnitSyncFns: new Map(), // unit_id  -> Set<syncBtns fn>
   logSource: null,
   selectedOpsUnitId: null,
 };

web/js/units.js

@@ -34,10 +34,10 @@ export function resetUnitForm() {
   dom.unitId.value = "";
   dom.unitEnabled.checked = true;
   dom.unitManualAck.checked = true;
-  dom.unitRunTimeSec.value = "0";
-  dom.unitStopTimeSec.value = "0";
-  dom.unitAccTimeSec.value = "0";
-  dom.unitBlTimeSec.value = "0";
+  dom.unitRunTimeSec.value = "10";
+  dom.unitStopTimeSec.value = "10";
+  dom.unitAccTimeSec.value = "20";
+  dom.unitBlTimeSec.value = "10";
 }
 
 function openUnitModal() {
@@ -117,7 +117,7 @@ export function renderUnits() {
         <span class="badge ${unit.enabled ? "" : "offline"}">${unit.enabled ? "EN" : "DIS"}</span>
       </div>
       <div>${unit.name}</div>
-      <div class="muted">设备 ${equipmentCount(unit.id)} 台 | Acc ${runtime ? Math.floor(runtime.accumulated_run_sec / 1000) : 0}s</div>
+      <div class="muted">设备 ${equipmentCount(unit.id)} 台 | Acc ${runtime ? Math.floor(runtime.display_acc_sec / 1000) : 0}s</div>
       <div class="muted">Run ${unit.run_time_sec}s / Stop ${unit.stop_time_sec}s / Acc ${unit.acc_time_sec}s / BL ${unit.bl_time_sec}s</div>
       <div class="row unit-card-actions"></div>
     `;
@@ -151,10 +151,14 @@ export function renderUnits() {
     actions.append(editBtn, deleteBtn);
 
     const isAutoOn = runtime?.auto_enabled;
+    const startBlocked = !isAutoOn && (runtime?.fault_locked || runtime?.manual_ack_required);
     const autoBtn = document.createElement("button");
     autoBtn.className = isAutoOn ? "danger" : "secondary";
     autoBtn.textContent = isAutoOn ? "Stop Auto" : "Start Auto";
-    autoBtn.title = isAutoOn ? "停止自动控制" : "启动自动控制";
+    autoBtn.disabled = startBlocked;
+    autoBtn.title = startBlocked
+      ? (runtime?.fault_locked ? "设备故障中，无法启动自动控制" : "需人工确认故障后才可启动自动控制")
+      : (isAutoOn ? "停止自动控制" : "启动自动控制");
     autoBtn.addEventListener("click", (e) => {
       e.stopPropagation();
       const url = `/api/control/unit/${unit.id}/${isAutoOn ? "stop-auto" : "start-auto"}`;
@@ -188,6 +192,10 @@ export async function loadUnits() {
     state.selectedUnitId = null;
   }
 
+  state.units.forEach((unit) => {
+    if (unit.runtime) state.runtimes.set(unit.id, unit.runtime);
+  });
+
   renderUnits();
   renderUnitOptions(dom.equipmentUnitId?.value || "", dom.equipmentUnitId);
   renderUnitOptions(dom.equipmentBatchUnitId?.value || "", dom.equipmentBatchUnitId);

web/styles.css

@@ -237,29 +237,29 @@ body {
 .ops-signal-rows {
   padding: 6px 10px;
   display: flex;
-  flex-direction: column;
-  gap: 3px;
-}
-
-.ops-signal-row {
-  display: flex;
+  flex-direction: row;
+  gap: 4px;
   align-items: center;
-  gap: 6px;
-  font-size: 12px;
 }
 
-.ops-signal-label {
-  width: 36px;
+.sig-pill {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 40px;
+  height: 20px;
+  border-radius: 3px;
+  font-size: 10px;
+  font-weight: 700;
+  letter-spacing: 0.5px;
+  background: var(--surface-2, #e0e0e0);
   color: var(--text-3);
-  font-size: 11px;
-  text-transform: uppercase;
-  flex-shrink: 0;
-}
-
-.ops-signal-value {
-  flex: 1;
-  font-weight: 500;
+  transition: background 0.2s, color 0.2s;
+  user-select: none;
 }
+.sig-pill.sig-on    { background: var(--success); color: #fff; }
+.sig-pill.sig-fault { background: var(--danger);  color: #fff; }
+.sig-pill.sig-warn  { background: var(--warning);  color: #333; }
 
 .ops-eq-card-actions {
   padding: 6px 10px 8px;
@@ -875,38 +875,45 @@ button.danger:hover { background: var(--danger-hover); }
 }
 
 .event-card {
-  padding: 4px 8px;
+  display: flex;
+  align-items: baseline;
+  gap: 6px;
+  padding: 3px 8px;
   font-size: 12px;
   border-bottom: 1px solid var(--border);
+  white-space: nowrap;
+  overflow: hidden;
+  flex-shrink: 0;
 }
 
 .event-card:hover {
   background: var(--surface-hover, var(--surface));
 }
 
-.event-meta {
-  display: flex;
-  align-items: baseline;
-  gap: 6px;
+.event-badge {
+  flex-shrink: 0;
 }
 
-.event-type {
-  overflow: hidden;
-  text-overflow: ellipsis;
-  white-space: nowrap;
-}
+.badge.level-info     { background: rgba(52, 211, 153, 0.1);  color: #34d399; }
+.badge.level-warn     { background: rgba(251, 191, 36, 0.1);  color: #fbbf24; }
+.badge.level-error    { background: rgba(239, 68, 68, 0.1);   color: #f87171; }
+.badge.level-critical { background: rgba(239, 68, 68, 0.15);  color: #dc2626; }
 
 .event-time {
   flex-shrink: 0;
   font-size: 11px;
 }
 
+.event-type {
+  flex-shrink: 0;
+  font-weight: 600;
+}
+
 .event-message {
-  color: var(--text-muted, #888);
+  color: var(--text-2);
   font-size: 11px;
   overflow: hidden;
   text-overflow: ellipsis;
-  white-space: nowrap;
 }
 
 .equipment-select-row {