fix(confidence-engine): extend reconstruction chat timeout

tests/llm/provider.test.js

@@ -10,6 +10,7 @@ describe("OllamaLlmProvider chat capability detection", () => {
         ok: true,
         json: async () => ({ message: { content: "{}" } }),
       });
+    const setTimeoutSpy = vi.spyOn(globalThis, "setTimeout");
     vi.stubGlobal("fetch", fetchSpy);
     process.env.OLLAMA_BASE_URL = "http://ollama.test";
 
@@ -24,6 +25,7 @@ describe("OllamaLlmProvider chat capability detection", () => {
       expect(fetchSpy.mock.calls[0][0]).toBe("http://ollama.test/api/chat");
       expect(fetchSpy.mock.calls[1][0]).toBe("http://ollama.test/api/chat");
       expect(fetchSpy.mock.calls[1][0]).not.toContain("/api/generate");
+      expect(setTimeoutSpy).toHaveBeenCalledWith(expect.any(Function), 300000);
       const chatRequest = JSON.parse(fetchSpy.mock.calls[1][1].body);
       expect(chatRequest).toMatchObject({
         model: "configured-model",
@@ -46,6 +48,7 @@ describe("OllamaLlmProvider chat capability detection", () => {
         },
       });
     } finally {
+      setTimeoutSpy.mockRestore();
       vi.unstubAllGlobals();
       if (originalBaseUrl === undefined) delete process.env.OLLAMA_BASE_URL;
       else process.env.OLLAMA_BASE_URL = originalBaseUrl;