refactor: remove dead notification systems and legacy broadcasts

- Delete claude-hooks.ts store (processHook never called, always empty)
- Delete HookNotifications.vue and NotificationLog.vue (orphan components)
- Delete claude-status.ts route and broadcastClaudeStatus (no consumers)
- Delete agent-bar.md legacy doc
- Remove legacy WS 'claude-hook' broadcast (frontend ignores it)
- Move isAgentRunning tracking into broadcastClaudeHook

server/services/terminal.ts

@@ -295,17 +295,6 @@ export function startTerminalServer() {
         return Response.json({ sessions: list })
       }
 
-      // Claude status broadcast endpoint
-      if (url.pathname === '/claude-status' && req.method === 'POST') {
-        try {
-          const body = await req.json() as { status: ClaudeStatus, tool?: string, agent?: string }
-          broadcastClaudeStatus(body.status, body.tool, body.agent)
-          return Response.json({ success: true }, { headers: corsHeaders })
-        } catch {
-          return Response.json({ error: 'Invalid JSON' }, { status: 400, headers: corsHeaders })
-        }
-      }
-
       // Claude hook broadcast endpoint (rich data from stdin)
       if (url.pathname === '/claude-hook' && req.method === 'POST') {
         try {
@@ -718,57 +707,20 @@ export function startTerminalServer() {
   return server
 }
 
-// Claude status types
-type ClaudeStatus = 'idle' | 'thinking' | 'toolUse' | 'reading' | 'writing' | 'sessionStart' | 'sessionEnd' | 'permissionRequest' | 'interrupted' | 'error'
-
-// Broadcast Claude status to ALL clients across ALL sessions
-export function broadcastClaudeStatus(status: ClaudeStatus, tool?: string, agent?: string) {
-  const agentName = agent || 'claude'
-
-  // Track agent running state
-  if (status === 'sessionStart') {
-    const state = agentSessions.get(agentName)
-    if (state) {
-      state.isAgentRunning = true
-      console.log(`[Terminal] Agent ${agentName} marked as running (sessionStart)`)
-    }
-  } else if (status === 'sessionEnd') {
-    const state = agentSessions.get(agentName)
-    if (state) {
-      state.isAgentRunning = false
-      console.log(`[Terminal] Agent ${agentName} marked as stopped (sessionEnd)`)
-    }
-  }
-
-  const message = JSON.stringify({
-    type: 'claude-status',
-    status,
-    tool,
-    agent: agentName,
-    timestamp: Date.now()
-  })
-
-  const clientCount = broadcastToAll(message)
-  console.log(`[Terminal] Claude status broadcast: ${status}${tool ? ` (${tool})` : ''} → ${clientCount} clients`)
-
-  // Note: session state is updated via broadcastClaudeHook which has full payload context.
-}
-
-// Broadcast full Claude hook data to ALL clients
+// Process hook event and broadcast session state patch to ALL clients
 export function broadcastClaudeHook(data: Record<string, unknown>) {
-  // ── Update centralized session state and broadcast patch ──
   const statePatch = sessionState.processHookEvent(data as any)
   broadcastSessionStatePatch(statePatch)
 
-  // ── Legacy raw broadcast (dual temporal — kept for backward compatibility) ──
-  const message = JSON.stringify({
-    type: 'claude-hook',
-    ...data,
-    timestamp: Date.now()
-  })
-
-  const clientCount = broadcastToAll(message)
-  console.log(`[Terminal] Claude hook broadcast: ${data.hook_event_name || 'unknown'}${data.tool_name ? ` (${data.tool_name})` : ''} → ${clientCount} clients`)
+  // Track agent running state in terminal sessions
+  const agentName = (data.agent_name as string) || 'claude'
+  const event = data.hook_event_name as string
+  if (event === 'SessionStart' || event === 'SessionEnd') {
+    const state = agentSessions.get(agentName)
+    if (state) {
+      state.isAgentRunning = event === 'SessionStart'
+    }
+  }
 }
 
 // Broadcast transcript updates to ALL clients