feat(api): expose REST-only agent routes

src/routes/chat.ts

@@ -131,7 +131,7 @@ export const buildChatRouter = (
     });
   });
 
-  chatRouter.post("/session", async (req, res) => {
+  chatRouter.post("/sessions", async (req, res) => {
     const parsed = createSessionPayloadSchema.safeParse(req.body ?? {});
     if (!parsed.success) {
       res.status(400).json({
@@ -194,7 +194,7 @@ export const buildChatRouter = (
     });
   });
 
-  chatRouter.get("/session/:session_id", async (req, res) => {
+  chatRouter.get("/sessions/:session_id", async (req, res) => {
     const sessionId = req.params.session_id?.trim();
     const authContext = getAgentAuthContext(req);
     const projectId = authContext.projectId;
@@ -238,7 +238,7 @@ export const buildChatRouter = (
     });
   });
 
-  chatRouter.get("/session/:session_id/stream", async (req, res) => {
+  chatRouter.get("/sessions/:session_id/runs/current/events", async (req, res) => {
     const sessionId = req.params.session_id?.trim();
     const authContext = getAgentAuthContext(req);
     const projectId = authContext.projectId;
@@ -303,7 +303,7 @@ export const buildChatRouter = (
     res.on("close", cleanup);
   });
 
-  chatRouter.patch("/session/:session_id/title", async (req, res) => {
+  chatRouter.patch("/sessions/:session_id", async (req, res) => {
     const sessionId = req.params.session_id?.trim();
     const title =
       typeof req.body?.title === "string" ? req.body.title.trim() : "";
@@ -349,7 +349,7 @@ export const buildChatRouter = (
     });
   });
 
-  chatRouter.delete("/session/:session_id", async (req, res) => {
+  chatRouter.delete("/sessions/:session_id", async (req, res) => {
     const sessionId = req.params.session_id?.trim();
     const authContext = getAgentAuthContext(req);
     const projectId = authContext.projectId;
@@ -395,8 +395,11 @@ export const buildChatRouter = (
     sessionUiStateStore,
   });
 
-  chatRouter.post("/fork", async (req, res) => {
-    const parsed = forkPayloadSchema.safeParse(req.body);
+  chatRouter.post("/sessions/:session_id/forks", async (req, res) => {
+    const parsed = forkPayloadSchema.safeParse({
+      ...req.body,
+      session_id: req.params.session_id,
+    });
     if (!parsed.success) {
       res.status(400).json({
         message: "invalid request payload",
@@ -425,6 +428,10 @@ export const buildChatRouter = (
             sourceSessionId,
           )
         : null;
+      if (!sourceSessionId || !sourceSessionRecord) {
+        res.status(404).json({ message: "source session not found" });
+        return;
+      }
       const forkSession = await runtime.createSession();
       const { record: targetSessionRecord } = await sessionMetadataStore.ensure({
         actorKey,
@@ -436,27 +443,25 @@ export const buildChatRouter = (
       });
       const nextSessionId = targetSessionRecord.sessionId;
 
-      if (sourceSessionId) {
-        await sessionTranscriptStore.cloneThread(
-          {
-            actorKey,
-            clientSessionId: sourceSessionId,
-            projectKey,
-            sessionId: sourceSessionId,
-          },
-          {
-            actorKey,
-            clientSessionId: nextSessionId,
-            projectKey,
-            sessionId: nextSessionId,
-          },
-          parsed.data.keep_message_count,
-        );
-      }
-      const sourceState = sourceSessionRecord
-        ? await sessionUiStateStore.read(toSessionUiStateContext(sourceSessionRecord))
-        : null;
-      const forkTitle = sourceSessionRecord?.title
+      await sessionTranscriptStore.cloneThread(
+        {
+          actorKey,
+          clientSessionId: sourceSessionId,
+          projectKey,
+          sessionId: sourceSessionId,
+        },
+        {
+          actorKey,
+          clientSessionId: nextSessionId,
+          projectKey,
+          sessionId: nextSessionId,
+        },
+        parsed.data.keep_message_count,
+      );
+      const sourceState = await sessionUiStateStore.read(
+        toSessionUiStateContext(sourceSessionRecord),
+      );
+      const forkTitle = sourceSessionRecord.title
         ? `${sourceSessionRecord.title} 副本`
         : "新对话副本";
       const titledTargetSessionRecord = await sessionMetadataStore.touch(
@@ -495,8 +500,11 @@ export const buildChatRouter = (
     }
   });
 
-  chatRouter.post("/stream", async (req, res) => {
-    const parsed = payloadSchema.safeParse(req.body);
+  chatRouter.post("/sessions/:session_id/runs", async (req, res) => {
+    const parsed = payloadSchema.safeParse({
+      ...req.body,
+      session_id: req.params.session_id,
+    });
     if (!parsed.success) {
       res.status(400).json({
         message: "invalid request payload",