chore: enable no-base-to-string

extensions/feishu/src/bot.broadcast.test.ts

@@ -364,7 +364,10 @@ describe("broadcast dispatch", () => {
     });
 
     expect(mockDispatchReplyFromConfig).toHaveBeenCalledTimes(1);
-    const sessionKey = String(finalizeInboundContextCalls[0]?.SessionKey ?? "");
+    const sessionKey =
+      typeof finalizeInboundContextCalls[0]?.SessionKey === "string"
+        ? finalizeInboundContextCalls[0].SessionKey
+        : "";
     expect(sessionKey).toBe("agent:susan:feishu:group:oc-broadcast-group");
   });
 });

extensions/feishu/src/reply-dispatcher.test.ts

@@ -539,7 +539,7 @@ describe("createFeishuReplyDispatcher streaming behavior", () => {
 
     expect(streamingInstances).toHaveLength(1);
     const updateCalls = streamingInstances[0].update.mock.calls.map((c: unknown[]) =>
-      String(c[0] ?? ""),
+      typeof c[0] === "string" ? c[0] : "",
     );
     const reasoningUpdate = updateCalls.find((c) => c.includes("Thinking"));
     expect(reasoningUpdate).toContain("> 💭 **Thinking**");

extensions/feishu/src/tool-account-routing.test.ts

@@ -180,7 +180,7 @@ describe("feishu tool account routing", () => {
     const result = await tool.execute("call", { action: "search" });
 
     expect(createFeishuClientMock).not.toHaveBeenCalled();
-    expect(String(result.details.error ?? "")).toContain(
+    expect(typeof result.details.error === "string" ? result.details.error : "").toContain(
       "Resolve this command against an active gateway runtime snapshot before reading it.",
     );
   });