MAESTRO: audit Tab and queue components - remove dead code

- TabBar.tsx: removed unused props onTabRename and onCloseOthers
  (onTabRename is handled by RenameTabModal, onCloseOthers was never implemented)
- MainPanel.tsx: removed corresponding dead props and usages
- App.tsx: removed dead callback implementations (44 lines)
- ExecutionQueueIndicator.tsx: removed unused React and QueuedItem imports

src/renderer/App.tsx

@@ -6583,30 +6583,6 @@ export default function MaestroConsole() {
             return result.session;
           }));
         }}
-        onTabRename={(tabId: string, newName: string) => {
-          if (!activeSession) return;
-          // Update tab state
-          setSessions(prev => prev.map(s => {
-            if (s.id !== activeSession.id) return s;
-            // Find the tab to get its agentSessionId for persistence
-            const tab = s.aiTabs.find(t => t.id === tabId);
-            if (tab?.agentSessionId) {
-              // Persist name to agent session metadata (async, fire and forget)
-              // Use projectRoot (not cwd) for consistent session storage access
-              window.maestro.agentSessions.updateSessionName(
-                s.projectRoot,
-                tab.agentSessionId,
-                newName || ''
-              ).catch(err => console.error('Failed to persist tab name:', err));
-            }
-            return {
-              ...s,
-              aiTabs: s.aiTabs.map(t =>
-                t.id === tabId ? { ...t, name: newName || null } : t
-              )
-            };
-          }));
-        }}
         onRequestTabRename={(tabId: string) => {
           if (!activeSession) return;
           const tab = activeSession.aiTabs?.find(t => t.id === tabId);
@@ -6627,16 +6603,6 @@ export default function MaestroConsole() {
             return { ...s, aiTabs: tabs };
           }));
         }}
-        onCloseOtherTabs={(tabId: string) => {
-          if (!activeSession) return;
-          // Use functional setState to compute from fresh state (avoids stale closure issues)
-          setSessions(prev => prev.map(s => {
-            if (s.id !== activeSession.id || !s.aiTabs) return s;
-            const tabToKeep = s.aiTabs.find(t => t.id === tabId);
-            if (!tabToKeep) return s;
-            return { ...s, aiTabs: [tabToKeep], activeTabId: tabId };
-          }));
-        }}
         onUpdateTabByClaudeSessionId={(agentSessionId: string, updates: { name?: string | null; starred?: boolean }) => {
           // Update the AITab that matches this Claude session ID
           // This is called when a session is renamed or starred in the AgentSessionsBrowser

src/renderer/components/ExecutionQueueIndicator.tsx

@@ -1,6 +1,6 @@
-import React, { useRef, useState, useEffect, useCallback } from 'react';
+import { useRef, useState, useEffect, useCallback } from 'react';
 import { ListOrdered, Command, MessageSquare } from 'lucide-react';
-import type { Session, Theme, QueuedItem } from '../types';
+import type { Session, Theme } from '../types';
 
 interface ExecutionQueueIndicatorProps {
   session: Session;

src/renderer/components/MainPanel.tsx

@@ -141,10 +141,8 @@ interface MainPanelProps {
   onTabSelect?: (tabId: string) => void;
   onTabClose?: (tabId: string) => void;
   onNewTab?: () => void;
-  onTabRename?: (tabId: string, newName: string) => void;
   onRequestTabRename?: (tabId: string) => void;
   onTabReorder?: (fromIndex: number, toIndex: number) => void;
-  onCloseOtherTabs?: (tabId: string) => void;
   onTabStar?: (tabId: string, starred: boolean) => void;
   onTabMarkUnread?: (tabId: string) => void;
   onUpdateTabByClaudeSessionId?: (agentSessionId: string, updates: { name?: string | null; starred?: boolean }) => void;
@@ -222,7 +220,7 @@ export const MainPanel = forwardRef<MainPanelHandle, MainPanelProps>(function Ma
   const [configuredContextWindow, setConfiguredContextWindow] = useState(0);
 
   // Extract tab handlers from props
-  const { onTabSelect, onTabClose, onNewTab, onTabRename, onRequestTabRename, onTabReorder, onCloseOtherTabs, onTabStar, onTabMarkUnread, showUnreadOnly, onToggleUnreadFilter, onOpenTabSearch } = props;
+  const { onTabSelect, onTabClose, onNewTab, onRequestTabRename, onTabReorder, onTabStar, onTabMarkUnread, showUnreadOnly, onToggleUnreadFilter, onOpenTabSearch } = props;
 
   // Get the active tab for header display
   // The header should show the active tab's data (UUID, name, cost, context), not session-level data
@@ -782,10 +780,8 @@ export const MainPanel = forwardRef<MainPanelHandle, MainPanelProps>(function Ma
               onTabSelect={onTabSelect}
               onTabClose={onTabClose}
               onNewTab={onNewTab}
-              onTabRename={onTabRename}
               onRequestRename={onRequestTabRename}
               onTabReorder={onTabReorder}
-              onCloseOthers={onCloseOtherTabs}
               onTabStar={onTabStar}
               onTabMarkUnread={onTabMarkUnread}
               showUnreadOnly={showUnreadOnly}

src/renderer/components/TabBar.tsx

@@ -11,10 +11,8 @@ interface TabBarProps {
   onTabSelect: (tabId: string) => void;
   onTabClose: (tabId: string) => void;
   onNewTab: () => void;
-  onTabRename?: (tabId: string, newName: string) => void;
   onRequestRename?: (tabId: string) => void;
   onTabReorder?: (fromIndex: number, toIndex: number) => void;
-  onCloseOthers?: (tabId: string) => void;
   onTabStar?: (tabId: string, starred: boolean) => void;
   onTabMarkUnread?: (tabId: string) => void;
   showUnreadOnly?: boolean;
@@ -403,10 +401,8 @@ export function TabBar({
   onTabSelect,
   onTabClose,
   onNewTab,
-  onTabRename,
   onRequestRename,
   onTabReorder,
-  onCloseOthers,
   onTabStar,
   onTabMarkUnread,
   showUnreadOnly: showUnreadOnlyProp,