refactor: unify hook notification system, remove duplicate broadcasts

- Replace forward-hook.ps1 with notify.ps1 (now accepts optional agent param)
- Remove ejecutor settings.local.json (redundant status hooks, deriveStatus covers it)
- Remove legacy claude-permission system (route, store methods, terminal broadcast)
- Remove redundant deriveStatus + /claude-status POST from claude-hook.ts
  (broadcastClaudeHook → processHookEvent already handles status derivation)
- Clean up HookNotifications.vue permission buttons (dead code)

server/services/terminal.ts

@@ -257,6 +257,7 @@ export async function startAgentInSession(agentId: string, force = false): Promi
 
 export function startTerminalServer() {
   const server = Bun.serve({
+    hostname: '0.0.0.0',
     port: PORT_TERMINAL,
     async fetch(req, server) {
       const url = new URL(req.url)
@@ -316,17 +317,6 @@ export function startTerminalServer() {
         }
       }
 
-      // Claude permission request broadcast endpoint
-      if (url.pathname === '/claude-permission' && req.method === 'POST') {
-        try {
-          const body = await req.json()
-          broadcastPermissionRequest(body)
-          return Response.json({ success: true }, { headers: corsHeaders })
-        } catch {
-          return Response.json({ error: 'Invalid JSON' }, { status: 400, headers: corsHeaders })
-        }
-      }
-
       // Agent sessions info
       if (url.pathname === '/agent-sessions' && req.method === 'GET') {
         const result: Record<string, any> = {}
@@ -762,8 +752,6 @@ export function broadcastClaudeStatus(status: ClaudeStatus, tool?: string, agent
   console.log(`[Terminal] Claude status broadcast: ${status}${tool ? ` (${tool})` : ''} → ${clientCount} clients`)
 
   // Note: session state is updated via broadcastClaudeHook which has full payload context.
-  // Direct /claude-status POSTs (from ejecutor's settings.local.json) are lightweight
-  // and don't carry enough context to update full session state.
 }
 
 // Broadcast full Claude hook data to ALL clients
@@ -783,18 +771,6 @@ export function broadcastClaudeHook(data: Record<string, unknown>) {
   console.log(`[Terminal] Claude hook broadcast: ${data.hook_event_name || 'unknown'}${data.tool_name ? ` (${data.tool_name})` : ''} → ${clientCount} clients`)
 }
 
-// Broadcast permission request to ALL clients
-export function broadcastPermissionRequest(data: Record<string, unknown>) {
-  const message = JSON.stringify({
-    type: 'claude-permission',
-    ...data,
-    timestamp: Date.now()
-  })
-
-  const clientCount = broadcastToAll(message)
-  console.log(`[Terminal] Permission request broadcast: ${data.tool_name || 'unknown'} (${data.requestId}) → ${clientCount} clients`)
-}
-
 // Broadcast transcript updates to ALL clients
 export function broadcastTranscriptUpdate(data: Record<string, unknown>) {
   const message = JSON.stringify({