feat: update empty state messages and hints in English and Chinese locales

refactor: rename variables for clarity in ReviewSessionPage and SessionsPage

fix: update version check logic in SettingsPage

chore: remove unused imports in TeamPage and session-detail components

fix: enhance error handling in MCP server

fix: apply default mode in edit-file tool handler

chore: remove tsbuildinfo file

docs: add Quick Plan & Execute phase documentation for issue discovery

chore: clean up ping output file

ccw/frontend/src/pages/LiteTaskDetailPage.tsx

@@ -42,9 +42,9 @@ import { Button } from '@/components/ui/Button';
 import { Badge } from '@/components/ui/Badge';
 import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/Card';
 import { Tabs, TabsContent } from '@/components/ui/Tabs';
-import { TabsNavigation, type TabItem } from '@/components/ui/TabsNavigation';
+import { TabsNavigation } from '@/components/ui/TabsNavigation';
 import { Collapsible, CollapsibleTrigger, CollapsibleContent } from '@/components/ui/Collapsible';
-import type { LiteTask, LiteTaskSession } from '@/lib/api';
+import type { LiteTask } from '@/lib/api';
 
 // ========================================
 // Type Definitions
@@ -57,22 +57,6 @@ type MultiCliTab = 'tasks' | 'discussion' | 'context';
 
 type TaskTabValue = 'task' | 'context';
 
-// Context Package Structure
-interface ContextPackage {
-  task_description?: string;
-  constraints?: string[];
-  focus_paths?: string[];
-  relevant_files?: Array<string | { path: string; reason?: string }>;
-  dependencies?: string[] | Array<{ name: string; type: string; version: string }>;
-  conflict_risks?: string[] | Array<{ description: string; severity: string }>;
-  session_id?: string;
-  metadata?: {
-    created_at: string;
-    version: string;
-    source: string;
-  };
-}
-
 // Exploration Structure
 interface Exploration {
   name: string;
@@ -80,22 +64,6 @@ interface Exploration {
   content?: string;
 }
 
-interface ExplorationData {
-  manifest?: {
-    task_description: string;
-    complexity: 'low' | 'medium' | 'high';
-    exploration_count: number;
-    created_at: string;
-  };
-  data?: {
-    architecture?: ExplorationAngle;
-    dependencies?: ExplorationAngle;
-    patterns?: ExplorationAngle;
-    'integration-points'?: ExplorationAngle;
-    testing?: ExplorationAngle;
-  };
-}
-
 interface ExplorationAngle {
   findings: string[];
   recommendations: string[];
@@ -103,44 +71,6 @@ interface ExplorationAngle {
   risks: string[];
 }
 
-// Diagnosis Structure
-interface Diagnosis {
-  symptom: string;
-  root_cause: string;
-  issues: Array<{
-    file: string;
-    line: number;
-    severity: 'high' | 'medium' | 'low';
-    message: string;
-  }>;
-  affected_files: string[];
-  fix_hints: string[];
-  recommendations: string[];
-}
-
-// Discussion/Round Structure
-interface DiscussionRound {
-  metadata: {
-    roundId: number;
-    timestamp: string;
-    durationSeconds: number;
-    contributingAgents: Array<{ name: string; id: string }>;
-  };
-  solutions: DiscussionSolution[];
-  _internal: {
-    convergence: {
-      score: number;
-      recommendation: 'proceed' | 'continue' | 'pause';
-      reasoning: string;
-    };
-    cross_verification: {
-      agreements: string[];
-      disagreements: string[];
-      resolution: string;
-    };
-  };
-}
-
 interface ImplementationTask {
   id: string;
   title: string;
@@ -171,56 +101,6 @@ interface DiscussionSolution {
   };
 }
 
-// Synthesis Structure
-interface Synthesis {
-  convergence: {
-    summary: string | { en: string; zh: string };
-    score: number;
-    recommendation: 'proceed' | 'continue' | 'pause' | 'complete' | 'halt';
-  };
-  cross_verification: {
-    agreements: string[];
-    disagreements: string[];
-    resolution: string;
-  };
-  final_solution: DiscussionSolution;
-  alternative_solutions: DiscussionSolution[];
-}
-
-// ========================================
-// Helper Functions
-// ========================================
-
-/**
- * Get i18n text (handles both string and {en, zh} object)
- */
-function getI18nText(text: string | { en?: string; zh?: string } | undefined, locale: string = 'zh'): string {
-  if (!text) return '';
-  if (typeof text === 'string') return text;
-  return text[locale as keyof typeof text] || text.en || text.zh || '';
-}
-
-/**
- * Get task status badge configuration
- */
-function getTaskStatusBadge(
-  status: LiteTask['status'],
-  formatMessage: (key: { id: string }) => string
-) {
-  switch (status) {
-    case 'completed':
-      return { variant: 'success' as const, label: formatMessage({ id: 'sessionDetail.status.completed' }), icon: CheckCircle };
-    case 'in_progress':
-      return { variant: 'warning' as const, label: formatMessage({ id: 'sessionDetail.status.inProgress' }), icon: Loader2 };
-    case 'blocked':
-      return { variant: 'destructive' as const, label: formatMessage({ id: 'sessionDetail.status.blocked' }), icon: XCircle };
-    case 'failed':
-      return { variant: 'destructive' as const, label: formatMessage({ id: 'fixSession.status.failed' }), icon: XCircle };
-    default:
-      return { variant: 'secondary' as const, label: formatMessage({ id: 'sessionDetail.status.pending' }), icon: Clock };
-  }
-}
-
 // ========================================
 // Main Component
 // ========================================
@@ -237,7 +117,7 @@ function getTaskStatusBadge(
 export function LiteTaskDetailPage() {
   const { sessionId } = useParams<{ sessionId: string }>();
   const navigate = useNavigate();
-  const { formatMessage, locale } = useIntl();
+  const { formatMessage } = useIntl();
 
   // Session type state
   const [sessionType, setSessionType] = React.useState<SessionType>('lite-plan');

ccw/frontend/src/pages/LiteTasksPage.tsx

@@ -35,8 +35,7 @@ import { useLiteTasks } from '@/hooks/useLiteTasks';
 import { Button } from '@/components/ui/Button';
 import { Badge } from '@/components/ui/Badge';
 import { Card, CardContent } from '@/components/ui/Card';
-import { Tabs, TabsContent } from '@/components/ui/Tabs';
-import { TabsNavigation, type TabItem } from '@/components/ui/TabsNavigation';
+import { TabsNavigation } from '@/components/ui/TabsNavigation';
 import { TaskDrawer } from '@/components/shared/TaskDrawer';
 import { fetchLiteSessionContext, type LiteTask, type LiteTaskSession, type LiteSessionContext } from '@/lib/api';
 import { LiteContextContent } from '@/components/lite-tasks/LiteContextContent';

ccw/frontend/src/pages/McpManagerPage.tsx

@@ -739,7 +739,7 @@ export function McpManagerPage() {
               </h3>
             </div>
             <Card className="p-4">
-              <CrossCliSyncPanel onSuccess={(count, direction) => refetch()} />
+              <CrossCliSyncPanel onSuccess={() => refetch()} />
             </Card>
           </section>
 

ccw/frontend/src/pages/PromptHistoryPage.tsx

@@ -72,7 +72,7 @@ export function PromptHistoryPage() {
 
   // Insight detail state
   const [selectedInsight, setSelectedInsight] = React.useState<InsightHistory | null>(null);
-  const [insightDetailOpen, setInsightDetailOpen] = React.useState(false);
+  const [, setInsightDetailOpen] = React.useState(false);
 
   // Batch operations state
   const [selectedPromptIds, setSelectedPromptIds] = React.useState<Set<string>>(new Set());

ccw/frontend/src/pages/QueuePage.test.tsx

@@ -11,8 +11,8 @@ import type { IssueQueue } from '@/lib/api';
 
 // Mock queue data
 const mockQueueData = {
-  tasks: ['task1', 'task2'],
-  solutions: ['solution1'],
+  tasks: [] as any[],
+  solutions: [] as any[],
   conflicts: [],
   execution_groups: ['group-1'],
   grouped_items: { 'parallel-group': [] as any[] },

ccw/frontend/src/pages/ReviewSessionPage.tsx

@@ -15,7 +15,6 @@ import {
   Info,
   FileText,
   Download,
-  ChevronDown,
   ChevronRight,
   ChevronLeft as ChevronLeftIcon,
   ChevronRight as ChevronRightIcon,
@@ -291,7 +290,6 @@ export function ReviewSessionPage() {
   const [sortField, setSortField] = React.useState<SortField>('severity');
   const [sortOrder, setSortOrder] = React.useState<SortOrder>('desc');
   const [selectedFindings, setSelectedFindings] = React.useState<Set<string>>(new Set());
-  const [expandedFindings, setExpandedFindings] = React.useState<Set<string>>(new Set());
   const [selectedFindingId, setSelectedFindingId] = React.useState<string | null>(null);
 
   const handleBack = () => {
@@ -353,18 +351,6 @@ export function ReviewSessionPage() {
     setSelectedFindings(new Set());
   };
 
-  const toggleExpandFinding = (findingId: string) => {
-    setExpandedFindings(prev => {
-      const next = new Set(prev);
-      if (next.has(findingId)) {
-        next.delete(findingId);
-      } else {
-        next.add(findingId);
-      }
-      return next;
-    });
-  };
-
   const handleFindingClick = (findingId: string) => {
     setSelectedFindingId(findingId);
   };

ccw/frontend/src/pages/SessionsPage.tsx

@@ -40,7 +40,7 @@ import {
   DropdownMenuSeparator,
   DropdownMenuLabel,
 } from '@/components/ui/Dropdown';
-import { TabsNavigation, type TabItem } from '@/components/ui/TabsNavigation';
+import { TabsNavigation } from '@/components/ui/TabsNavigation';
 import { cn } from '@/lib/utils';
 import type { SessionMetadata } from '@/types/store';
 

ccw/frontend/src/pages/SettingsPage.tsx

@@ -712,7 +712,7 @@ function VersionCheckSection() {
               {formatMessage({ id: 'settings.versionCheck.latestVersion' })}
             </span>
             <Badge
-              variant={versionData?.updateAvailable ? 'default' : 'secondary'}
+              variant={versionData?.hasUpdate ? 'default' : 'secondary'}
               className="font-mono text-xs"
             >
               {versionData?.latestVersion ?? '...'}

ccw/frontend/src/pages/TeamPage.tsx

@@ -31,11 +31,11 @@ export function TeamPage() {
 
   // Data hooks
   const { teams, isLoading: teamsLoading } = useTeams();
-  const { messages, total: messageTotal, isLoading: messagesLoading } = useTeamMessages(
+  const { messages, total: messageTotal } = useTeamMessages(
     selectedTeam,
     messageFilter
   );
-  const { members, totalMessages, isLoading: statusLoading } = useTeamStatus(selectedTeam);
+  const { members, totalMessages } = useTeamStatus(selectedTeam);
 
   // Auto-select first team if none selected
   useEffect(() => {

ccw/frontend/src/pages/orchestrator/PropertyPanel.tsx

@@ -1224,7 +1224,6 @@ function SaveAsTemplateButton({ nodeId, nodeLabel }: { nodeId: string; nodeLabel
   const [name, setName] = useState('');
   const [desc, setDesc] = useState('');
   const [color, setColor] = useState('bg-blue-500');
-  const saveNodeAsTemplate = useFlowStore((s) => s.saveNodeAsTemplate);
   const addCustomTemplate = useFlowStore((s) => s.addCustomTemplate);
   const nodes = useFlowStore((s) => s.nodes);
 

ccw/frontend/src/pages/session-detail/SummaryTab.tsx

@@ -8,7 +8,6 @@ import { useIntl } from 'react-intl';
 import { FileText, Eye } from 'lucide-react';
 import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/Card';
 import { Button } from '@/components/ui/Button';
-import { Badge } from '@/components/ui/Badge';
 import MarkdownModal from '@/components/shared/MarkdownModal';
 
 // ========================================

ccw/frontend/src/pages/session-detail/TaskListTab.tsx

@@ -7,13 +7,11 @@ import { useState } from 'react';
 import { useIntl } from 'react-intl';
 import {
   ListChecks,
-  Code,
   GitBranch,
   Calendar,
   FileCode,
   Layers,
 } from 'lucide-react';
-import { Badge } from '@/components/ui/Badge';
 import { Card, CardContent } from '@/components/ui/Card';
 import { TaskStatsBar, TaskStatusDropdown } from '@/components/session-detail/tasks';
 import type { SessionMetadata, TaskData } from '@/types/store';