Add attention inbox and AI usage observability

tests/openrouter-client.test.ts

@@ -703,6 +703,36 @@ describe('OpenRouterClient', () => {
       ).rejects.toThrow('network');
     });
   });
+
+  it('records model, token, cost, latency, and outcome for each request attempt', async () => {
+    const usageRecorder = vi.fn();
+    const config = getTestConfig();
+    const localClient = new OpenRouterClient(
+      config,
+      logger,
+      { chat: { completions: { create: mockCreate } } } as unknown as OpenAI,
+      usageRecorder,
+    );
+    mockCreate.mockResolvedValueOnce({
+      model: 'provider/model-a',
+      choices: [{ message: { content: 'A useful reply' } }],
+      usage: { prompt_tokens: 100, completion_tokens: 12, total_tokens: 112, cost: 0.0017 },
+    });
+
+    await localClient.generateReply([{ sender: 'them', text: 'hello?', isSelf: false }], 'them');
+
+    expect(usageRecorder).toHaveBeenCalledWith(expect.objectContaining({
+      operation: 'generateReply',
+      requestedModel: config.openrouter.chatModel,
+      actualModel: 'provider/model-a',
+      outcome: 'success',
+      promptTokens: 100,
+      completionTokens: 12,
+      totalTokens: 112,
+      costUsd: 0.0017,
+      latencyMs: expect.any(Number),
+    }));
+  });
 });
 
 describe('stripDashes', () => {