feat: Add tree file view for git status, AgentBar dock, and settings updates

- Add StatusTree component with collapsible directory hierarchy for staged/unstaged/untracked files
- Replace flat file lists in GitPage with tree view showing file type icons and git status badges
- Add AgentBar arc dock with per-agent terminal frame and voice modal
- Update ejecutor settings with hooks for claude-status reporting

frontend/src/App.vue

@@ -153,7 +153,12 @@ function connectStatusWs() {
       const msg = JSON.parse(event.data)
       if (msg.type === 'claude-status') {
         const status = msg.status as ClaudeStatus
-        console.log('[App] Claude status:', status, msg.tool)
+        const agent = msg.agent || 'main'
+        console.log('[App] Claude status:', status, msg.tool, agent)
+
+        // Only animate the main FAB for 'main' agent — other agents use AgentBar
+        if (agent !== 'main') return
+
         claudeStatus.value = status
         claudeTool.value = msg.tool || null