feat(monitoring): dispatch monitoring tasks to desktop via AMQP outbox

Replace SSE /desktop/events with priority AMQP dispatch for monitoring
runs, and add phase1/phase2 infrastructure so desktop workers can lease,
resume, report, skip, and cancel monitoring tasks over the existing
dispatch WebSocket.

- Add monitoring collect outbox worker and phase2 desktop task fields
- Add /desktop/monitoring/tasks/{lease,resume,result,skip,cancel} routes
- Introduce execution-devtools and network-observer on desktop runtime
- Refactor runtime-controller, LoginView, and doubao adapter for the new flow
- Add channelName column to tracking views

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/desktop-client/src/renderer/components/DesktopShell.vue

@@ -82,6 +82,7 @@ const clientLabel = computed(
 
 <template>
   <div class="app-shell">
+    <div class="window-drag-bar" aria-hidden="true"></div>
     <aside class="sidebar">
       <div class="brand-block">
         <div class="brand-mark">
@@ -144,6 +145,7 @@ const clientLabel = computed(
     </aside>
 
     <main class="content">
+      <div class="content-dragbar" aria-hidden="true"></div>
       <RouterView />
     </main>
   </div>
@@ -156,6 +158,23 @@ const clientLabel = computed(
   overflow: hidden;
   background: #f0f2f5;
   color: #1a1a1a;
+  position: relative;
+}
+
+/* Real drag handle for the macOS hidden title bar — must be above content
+   but only spans the empty zone behind the traffic lights. */
+.window-drag-bar {
+  position: fixed;
+  top: 0;
+  left: 80px;
+  right: 0;
+  height: 28px;
+  z-index: 1000;
+  -webkit-app-region: drag;
+}
+
+.app-shell :where(button, a, input, select, textarea, [role="button"], [role="link"]) {
+  -webkit-app-region: no-drag;
 }
 
 .sidebar {
@@ -165,6 +184,7 @@ const clientLabel = computed(
   display: flex;
   flex-direction: column;
   padding: 24px;
+  padding-top: 44px;
   border-right: 1px solid #e6edf5;
   background: #ffffff;
   flex-shrink: 0;
@@ -174,6 +194,7 @@ const clientLabel = computed(
   display: flex;
   gap: 16px;
   align-items: center;
+  -webkit-app-region: drag;
 }
 
 .brand-mark {
@@ -459,6 +480,18 @@ h1 {
   height: 100vh;
   padding: 24px 32px;
   overflow-y: auto;
+  position: relative;
+}
+
+.content-dragbar {
+  position: sticky;
+  top: 0;
+  left: 0;
+  right: 0;
+  height: 24px;
+  margin: -24px -32px 0;
+  -webkit-app-region: drag;
+  z-index: 5;
 }
 
 @media (max-width: 1080px) {