refactor: remove 'executions' tab and related components from Issue Hub

ccw/frontend/src/components/issue/hub/IssueHubHeader.tsx

@@ -4,7 +4,7 @@
 // Dynamic header component for IssueHub
 
 import { useIntl } from 'react-intl';
-import { AlertCircle, Radar, ListTodo, LayoutGrid, Play } from 'lucide-react';
+import { AlertCircle, Radar, ListTodo, LayoutGrid } from 'lucide-react';
 import type { IssueTab } from './IssueHubTabs';
 
 interface IssueHubHeaderProps {
@@ -36,11 +36,6 @@ export function IssueHubHeader({ currentTab }: IssueHubHeaderProps) {
       title: formatMessage({ id: 'issues.discovery.pageTitle' }),
       description: formatMessage({ id: 'issues.discovery.description' }),
     },
-    executions: {
-      icon: <Play className="w-6 h-6 text-primary" />,
-      title: formatMessage({ id: 'issues.executions.pageTitle' }),
-      description: formatMessage({ id: 'issues.executions.description' }),
-    },
   };
 
   const config = tabConfig[currentTab] || tabConfig.issues;

ccw/frontend/src/components/issue/hub/IssueHubTabs.tsx

@@ -8,7 +8,7 @@ import { Button } from '@/components/ui/Button';
 import { cn } from '@/lib/utils';
 
 // Keep in sync with IssueHubHeader/IssueHubPage
-export type IssueTab = 'issues' | 'board' | 'queue' | 'discovery' | 'executions';
+export type IssueTab = 'issues' | 'board' | 'queue' | 'discovery';
 
 interface IssueHubTabsProps {
   currentTab: IssueTab;
@@ -23,7 +23,6 @@ export function IssueHubTabs({ currentTab, onTabChange }: IssueHubTabsProps) {
     { value: 'board', label: formatMessage({ id: 'issues.hub.tabs.board' }) },
     { value: 'queue', label: formatMessage({ id: 'issues.hub.tabs.queue' }) },
     { value: 'discovery', label: formatMessage({ id: 'issues.hub.tabs.discovery' }) },
-    { value: 'executions', label: formatMessage({ id: 'issues.hub.tabs.executions' }) },
   ];
 
   return (

ccw/frontend/src/components/layout/Sidebar.tsx

@@ -76,7 +76,6 @@ const navGroupDefinitions: NavGroupDef[] = [
     items: [
       { path: '/sessions', labelKey: 'navigation.main.sessions', icon: FolderKanban },
       { path: '/lite-tasks', labelKey: 'navigation.main.liteTasks', icon: Zap },
-      { path: '/orchestrator', labelKey: 'navigation.main.orchestrator', icon: Workflow },
       { path: '/issues', labelKey: 'navigation.main.issues', icon: AlertCircle },
       { path: '/teams', labelKey: 'navigation.main.teams', icon: Users },
       { path: '/terminal-dashboard', labelKey: 'navigation.main.terminalDashboard', icon: Terminal },

ccw/frontend/src/pages/IssueHubPage.tsx

@@ -17,12 +17,12 @@ import {
 import { IssueHubHeader } from '@/components/issue/hub/IssueHubHeader';
 import { IssueHubTabs, type IssueTab } from '@/components/issue/hub/IssueHubTabs';
 
-const VALID_TABS: IssueTab[] = ['issues', 'board', 'queue', 'discovery', 'executions'];
+const VALID_TABS: IssueTab[] = ['issues', 'board', 'queue', 'discovery'];
 import { IssuesPanel } from '@/components/issue/hub/IssuesPanel';
 import { IssueBoardPanel } from '@/components/issue/hub/IssueBoardPanel';
 import { QueuePanel } from '@/components/issue/hub/QueuePanel';
 import { DiscoveryPanel } from '@/components/issue/hub/DiscoveryPanel';
-import { ExecutionPanel } from '@/components/issue/hub/ExecutionPanel';
+// ExecutionPanel hidden - import { ExecutionPanel } from '@/components/issue/hub/ExecutionPanel';
 import { Button } from '@/components/ui/Button';
 import { Input } from '@/components/ui/Input';
 import { Label } from '@/components/ui/Label';
@@ -443,7 +443,6 @@ export function IssueHubPage() {
       {currentTab === 'board' && <IssueBoardPanel />}
       {currentTab === 'queue' && <QueuePanel />}
       {currentTab === 'discovery' && <DiscoveryPanel />}
-      {currentTab === 'executions' && <ExecutionPanel />}
 
       <NewIssueDialog open={isNewIssueOpen} onOpenChange={setIsNewIssueOpen} onSubmit={handleCreateIssue} isCreating={isCreating} />
     </div>