feat: wire code agent runs to tool mode

agent-run-routes.mjs

@@ -1,9 +1,13 @@
+import { normalizeAgentRunToolMode } from './agent-run-gateway.mjs';
+
 export function createPostAgentRunsHandler({ userAuth, agentRunGateway }) {
   return async function postAgentRuns(request, response) {
     try {
       const sessionId = String(request.body?.session_id ?? '').trim() || null;
       const requestId = String(request.body?.request_id ?? '').trim();
       const userMessage = request.body?.user_message ?? null;
+      const rawToolMode = request.body?.tool_mode ?? request.body?.toolMode ?? 'chat';
+      const taskType = String(request.body?.task_type ?? request.body?.taskType ?? '').trim() || null;
       if (!requestId) {
         response.status(400).json({ message: '缺少 request_id' });
         return;
@@ -12,6 +16,15 @@ export function createPostAgentRunsHandler({ userAuth, agentRunGateway }) {
         response.status(400).json({ message: '缺少 user_message' });
         return;
       }
+      let toolMode = 'chat';
+      try {
+        toolMode = normalizeAgentRunToolMode(rawToolMode);
+      } catch (err) {
+        response.status(400).json({
+          message: err instanceof Error ? err.message : '不支持的 tool_mode',
+        });
+        return;
+      }
       if (sessionId) {
         const owns = await userAuth.ownsSession(request.currentUser.id, sessionId);
         if (!owns) {
@@ -23,6 +36,8 @@ export function createPostAgentRunsHandler({ userAuth, agentRunGateway }) {
         sessionId,
         requestId,
         userMessage,
+        toolMode,
+        taskType,
       });
       response.status(202).json({ run });
     } catch (err) {