refactor: scope runtime log context

src/message-runtime.test.ts

@@ -154,14 +154,19 @@ vi.mock('./service-routing.js', () => ({
   shouldServiceProcessChat: vi.fn(() => true),
 }));
 
-vi.mock('./logger.js', () => ({
-  logger: {
+vi.mock('./logger.js', () => {
+  const mockLogger = {
     debug: vi.fn(),
     info: vi.fn(),
     warn: vi.fn(),
     error: vi.fn(),
-  },
-}));
+    child: (_bindings?: Record<string, unknown>) => mockLogger,
+  };
+  return {
+    logger: mockLogger,
+    createScopedLogger: (_bindings?: Record<string, unknown>) => mockLogger,
+  };
+});
 
 vi.mock('./sender-allowlist.js', () => ({
   isTriggerAllowed: vi.fn(() => true),