refactor(web): remove realtime log stream, compact event list to single line

- Remove SSE log stream (EventSource /api/logs/stream) and logView panel
- System events panel now occupies the full bottom-middle panel
- Each event renders as a single flex row: level badge, type, message, timestamp
- Remove logSource from state, logView from dom, startLogs from app bootstrap

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

web/html/logs-panel.html

@@ -1,18 +1,7 @@
 <section class="panel bottom-middle">
-  <div class="stack-panel">
-    <div class="stack-section event-section">
-      <div class="panel-head">
-        <h2>系统事件</h2>
-        <button type="button" class="secondary" id="refreshEventBtn">刷新</button>
-      </div>
-      <div class="list event-list" id="eventList"></div>
-    </div>
-
-    <div class="stack-section stack-section-bordered log-section">
-      <div class="panel-head">
-        <h2>实时日志</h2>
-      </div>
-      <div class="log" id="logView"></div>
-    </div>
+  <div class="panel-head">
+    <h2>系统事件</h2>
+    <button type="button" class="secondary" id="refreshEventBtn">刷新</button>
   </div>
+  <div class="list event-list" id="eventList"></div>
 </section>

web/js/app.js

@@ -14,7 +14,7 @@ import {
   resetEquipmentForm,
   saveEquipment,
 } from "./equipment.js";
-import { startLogs, startPointSocket } from "./logs.js";
+import { startPointSocket } from "./logs.js";
 import {
   clearBatchBinding,
   browseAndLoadTree,
@@ -136,7 +136,6 @@ async function bootstrap() {
   updateSelectedPointSummary();
   updatePointFilterSummary();
   renderChart();
-  startLogs();
   startPointSocket();
 
   await withStatus(loadUnits());

web/js/dom.js

@@ -15,7 +15,6 @@ export const dom = {
   pointSourceSelect: byId("pointSourceSelect"),
   pointSourceNodeCount: byId("pointSourceNodeCount"),
   openPointModalBtn: byId("openPointModal"),
-  logView: byId("logView"),
   chartCanvas: byId("chartCanvas"),
   chartTitle: byId("chartTitle"),
   chartSummary: byId("chartSummary"),

web/js/events.js

@@ -19,15 +19,8 @@ export function renderEvents() {
 
   state.events.forEach((item) => {
     const row = document.createElement("div");
-    row.className = "list-item event-card";
-    row.innerHTML = `
-      <div class="row">
-        <strong>${item.event_type}</strong>
-        <span class="badge">${(item.level || "info").toUpperCase()}</span>
-      </div>
-      <div>${item.message}</div>
-      <div class="muted">${formatTime(item.created_at)}</div>
-    `;
+    row.className = "event-card";
+    row.innerHTML = `<span class="badge">${(item.level || "info").toUpperCase()}</span><strong class="event-type">${item.event_type}</strong><span class="event-message">${item.message}</span><span class="muted event-time">${formatTime(item.created_at)}</span>`;
     dom.eventList.appendChild(row);
   });
 }

web/js/logs.js

@@ -1,73 +1,9 @@
 import { appendChartPoint } from "./chart.js";
-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";
 
-function escapeHtml(text) {
-  return text
-    .replaceAll("&", "&")
-    .replaceAll("<", "&lt;")
-    .replaceAll(">", "&gt;");
-}
-
-function parseLogLine(line) {
-  const trimmed = line.trim();
-  if (!trimmed.startsWith("{") || !trimmed.endsWith("}")) {
-    return null;
-  }
-
-  try {
-    return JSON.parse(trimmed);
-  } catch {
-    return null;
-  }
-}
-
-export function appendLog(line) {
-  const atBottom = dom.logView.scrollTop + dom.logView.clientHeight >= dom.logView.scrollHeight - 10;
-  const div = document.createElement("div");
-  const parsed = parseLogLine(line);
-
-  if (!parsed) {
-    div.className = "log-line";
-    div.textContent = line;
-  } else {
-    const levelRaw = (parsed.level || "").toString();
-    const level = levelRaw.toLowerCase();
-    div.className = `log-line${level ? ` level-${level}` : ""}`;
-    div.innerHTML = [
-      `<span class="level">${escapeHtml(levelRaw || "LOG")}</span>`,
-      parsed.timestamp ? `<span class="muted"> ${escapeHtml(parsed.timestamp)}</span>` : "",
-      parsed.target ? `<span class="muted"> ${escapeHtml(parsed.target)}</span>` : "",
-      `<span class="message">${escapeHtml(
-        parsed.fields?.message || parsed.message || parsed.msg || line,
-      )}</span>`,
-    ].join("");
-  }
-
-  dom.logView.appendChild(div);
-  if (atBottom) {
-    dom.logView.scrollTop = dom.logView.scrollHeight;
-  }
-}
-
-export function startLogs() {
-  if (state.logSource) {
-    state.logSource.close();
-  }
-
-  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 startPointSocket() {
   const protocol = location.protocol === "https:" ? "wss" : "ws";
   const ws = new WebSocket(`${protocol}://${location.host}/ws/public`);

web/js/state.js

@@ -18,7 +18,6 @@ export const state = {
   chartPointId: null,
   chartPointName: "",
   chartData: [],
-  logSource: null,
   pointSocket: null,
   apiDocLoaded: false,
   runtimes: new Map(),  // unit_id -> UnitRuntime

web/styles.css

@@ -660,8 +660,7 @@ button.danger:hover { background: var(--danger-hover); }
   max-height: 50vh;
 }
 
-.unit-list,
-.event-list {
+.unit-list {
   padding-top: 6px;
 }
 
@@ -670,20 +669,32 @@ button.danger:hover { background: var(--danger-hover); }
 }
 
 .event-card {
-  cursor: default;
+  display: flex;
+  align-items: baseline;
+  gap: 8px;
+  padding: 3px 8px;
+  font-size: 12px;
+  border-bottom: 1px solid var(--border);
+  white-space: nowrap;
 }
 
 .event-card:hover {
-  background: var(--surface);
-  border-color: var(--border);
+  background: var(--surface-hover, var(--surface));
 }
 
-.event-section {
-  flex-basis: 42%;
+.event-type {
+  flex-shrink: 0;
 }
 
-.log-section {
-  flex-basis: 58%;
+.event-message {
+  flex: 1;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.event-time {
+  flex-shrink: 0;
+  font-size: 11px;
 }
 
 .equipment-select-row {