chore(task-board): disable feature during refactor

server.js

@@ -173,6 +173,7 @@ const CODEX_APP_CCWEB_MCP_TRANSPORT = normalizeCodexAppCcwebMcpTransport(process
 const CODEX_APP_WORKER_DISABLED = /^(0|false|no|off)$/i.test(String(process.env.CC_WEB_CODEX_APP_WORKER || ''));
 const CODEX_APP_WORKER_ENABLED = !CODEX_APP_WORKER_DISABLED;
 const USAGE_STATISTICS_ENABLED = !/^(0|false|no|off)$/i.test(String(process.env.CC_WEB_USAGE_STATISTICS || ''));
+const TASK_BOARD_ENABLED = /^(1|true|yes|on)$/i.test(String(process.env.CC_WEB_TASK_BOARD_ENABLED || ''));
 const CODEX_APP_PROCESS_ENV_STRIP_KEYS = [
   'CC_WEB_MCP_URL',
   'CC_WEB_MCP_TOKEN',
@@ -2780,6 +2781,7 @@ function listComposerMcpItems(options = {}) {
   const seen = new Set();
   const push = (item) => {
     if (!item?.server && !item?.name) return;
+    if (!TASK_BOARD_ENABLED && String(item.name || '').startsWith('ccweb_task_')) return;
     const key = `${item.kind || ''}:${item.server || ''}:${item.name || item.label || item.insertion || ''}`;
     if (seen.has(key)) return;
     seen.add(key);
@@ -4574,7 +4576,7 @@ function createProductionTaskBoardService() {
 
 taskBoardService = createProductionTaskBoardService();
 taskBoardMcpHandlers = createTaskBoardMcpHandlers(taskBoardService);
-taskBoardLifecycle = createTaskBoardLifecycle(taskBoardService, {
+taskBoardLifecycle = TASK_BOARD_ENABLED ? createTaskBoardLifecycle(taskBoardService, {
   isTrackingEnabled(sessionId) {
     try {
       return taskBoardService.getTask(sessionId).taskTracking.enabled;
@@ -4585,8 +4587,8 @@ taskBoardLifecycle = createTaskBoardLifecycle(taskBoardService, {
   logger(level, event, data) {
     plog(String(level || '').toUpperCase() === 'ERROR' ? 'ERROR' : 'WARN', event, data);
   },
-});
-taskStatusClassifier = createTaskStatusClassifier({
+}) : null;
+taskStatusClassifier = TASK_BOARD_ENABLED ? createTaskStatusClassifier({
   taskBoardService,
   loadSession,
   resolveRuntime: resolveTaskStatusClassifierRuntime,
@@ -4600,10 +4602,10 @@ taskStatusClassifier = createTaskStatusClassifier({
     });
     broadcastSessionList();
   },
-});
+}) : null;
 
 function enqueueTaskStatusClassification(sessionId, event = {}) {
-  if (!taskStatusClassifier || !sessionId) return Promise.resolve(null);
+  if (!TASK_BOARD_ENABLED || !taskStatusClassifier || !sessionId) return Promise.resolve(null);
   return taskStatusClassifier.enqueue(sessionId, event).catch((error) => {
     plog('WARN', 'task_status_classification_enqueue_failed', {
       sessionId: String(sessionId).slice(0, 8),
@@ -4615,7 +4617,7 @@ function enqueueTaskStatusClassification(sessionId, event = {}) {
 }
 
 function taskBoardMcpToolDefinitionsForSession(sessionId) {
-  if (!taskBoardService || !sessionId) return [];
+  if (!TASK_BOARD_ENABLED || !taskBoardService || !sessionId) return [];
   try {
     return createTaskBoardMcpToolDefinitions(taskBoardService, {
       sourceSessionId: sanitizeId(sessionId),
@@ -5320,7 +5322,7 @@ function broadcastTaskBoardEvent(eventName, subject = null, extra = {}) {
 }
 
 function dispatchTaskBoardLifecycle(sessionId, event = {}) {
-  if (!taskBoardLifecycle || !sessionId || event.trackingEnabled === false) return Promise.resolve(null);
+  if (!TASK_BOARD_ENABLED || !taskBoardLifecycle || !sessionId || event.trackingEnabled === false) return Promise.resolve(null);
   return taskBoardLifecycle.handleEvent(sessionId, event).then((result) => {
     if (result?.changed && result.task) {
       broadcastTaskBoardEvent(`lifecycle:${event.type || result.eventType || 'updated'}`, result.task, {
@@ -5349,6 +5351,14 @@ function sendTaskBoardWsResult(ws, request, payload = {}) {
 }
 
 function handleTaskBoardWsMessage(ws, message = {}) {
+  if (!TASK_BOARD_ENABLED) {
+    sendTaskBoardWsResult(ws, message, {
+      ok: false,
+      code: 'task_board_disabled',
+      message: '任务看板正在重构，暂不可用。',
+    });
+    return;
+  }
   const actor = { source: 'user', id: 'ccweb-ui' };
   try {
     switch (message.type) {
@@ -6577,6 +6587,9 @@ function callInternalMcpTool(tool, args, sourceSessionId, sourceHopCount) {
     case 'ccweb_prompt_user':
       return createCcwebPromptUser(args, sourceSessionId);
     case 'ccweb_task_update': {
+      if (!TASK_BOARD_ENABLED) {
+        return mcpToolError('task_board_disabled', '任务看板正在重构，暂不可用。');
+      }
       const result = taskBoardMcpHandlers.ccweb_task_update(args, {
         sourceSessionId,
         actorId: `mcp:${String(sourceSessionId || '').slice(0, 32)}`,
@@ -7717,7 +7730,10 @@ wss.on('connection', (ws, req) => {
           token: authToken,
           mustChangePassword: !!authConfig.mustChange,
           frontendAssetVersion: computeFrontendAssetVersion(),
-          features: { usageStatistics: USAGE_STATISTICS_ENABLED },
+          features: {
+            usageStatistics: USAGE_STATISTICS_ENABLED,
+            taskBoard: TASK_BOARD_ENABLED,
+          },
         });
         sendSessionList(ws);
       } else {
@@ -9232,7 +9248,7 @@ function handleNewSession(ws, msg) {
     });
   }
   let { session } = result;
-  if (request.taskTrackingEnabled === true) {
+  if (TASK_BOARD_ENABLED && request.taskTrackingEnabled === true) {
     try {
       const trackedTask = taskBoardService.setTracking(session.id, true, {
         source: 'user',