fix(agent): stabilize large tool results

src/server.ts

@@ -233,7 +233,8 @@ app.post("/internal/tools/tjwater-cli-call", async (req, res) => {
         executeCliCommand(activeContext, command, timeoutSec, {
           apiBaseUrl: config.TJWATER_API_BASE_URL,
           cliPath: config.TJWATER_CLI_PATH,
-          maxOutputBytes: config.MAX_INLINE_RESULT_BYTES,
+          maxStderrBytes: config.MAX_CLI_STDERR_BYTES,
+          maxStdoutBytes: config.MAX_CLI_OUTPUT_BYTES,
         }),
     );
   } catch (error) {
@@ -278,7 +279,7 @@ app.post("/internal/tools/tjwater-cli-call", async (req, res) => {
       summary: "CLI 输出超过安全限制",
       error: {
         code: "OUTPUT_LIMIT_EXCEEDED",
-        message: `${result.exceededStream ?? "output"} exceeded ${config.MAX_INLINE_RESULT_BYTES} bytes`,
+        message: `${result.exceededStream ?? "output"} exceeded ${config.MAX_CLI_OUTPUT_BYTES} bytes`,
         retryable: false,
       },
     });
@@ -307,16 +308,17 @@ app.post("/internal/tools/tjwater-cli-call", async (req, res) => {
     return;
   }
 
-  try {
-    res.json(JSON.parse(result.stdout));
-  } catch {
-    res.json({
-      ok: true,
-      schema_version: "tjwater-cli/v1",
-      raw: result.stdout,
-      stderr: result.stderr || undefined,
-    });
+  if (result.stdout.trim()) {
+    res.status(200).type("application/json").send(result.stdout);
+    return;
   }
+  res.json({
+    ok: true,
+    schema_version: "tjwater-cli/v1",
+    raw: "",
+    stderr: result.stderr || undefined,
+    stderr_truncated: result.stderrTruncated || undefined,
+  });
 });
 
 app.post("/internal/tools/store-render-ref", async (req, res) => {