fix(cursor): fix router fall-through, add daemon marker, use random test port

- Route all `ccs cursor *` to handleCursorCommand (no profile-switching)
- Add --ccs-daemon marker to spawned process for stable PID validation
- Use random port in lifecycle integration test to prevent CI conflicts
- Remove unnecessary .toFixed(1) on integer tokenAge

tests/unit/cursor/cursor-daemon.test.ts

@@ -141,7 +141,7 @@ describe('startDaemon', () => {
   it(
     'starts and stops daemon successfully',
     async () => {
-      const port = 18765;
+      const port = 10000 + Math.floor(Math.random() * 50000);
       const result = await startDaemon({ port, model: 'test' });
       expect(result.success).toBe(true);
       expect(result.pid).toBeDefined();