fix: resolve 11 failing tests across 8 test files

- ralph-tracker: add ✓ to native todo pattern + pre-check, add configure() method
- session: remove stale message expectation from interactive endpoint test
- buffer-management: fix trim count expectations (1202 items triggers second trim)
- cli-commands: replace non-existent toStartWith with toMatch regex
- edge-cases: update error expectation for session-not-found on respawn config PUT
- ralph-integration: respawn config PUT without controller now saves as pre-config
- session-state: fix debouncer shouldFlush(0) - pass timestamp >= delayMs
- timing-utilities: attach catch handlers before advancing fake timers

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

test/session-state.test.ts

@@ -627,7 +627,7 @@ describe('Session Event Handling', () => {
       const debouncer = createDebouncer(100);
       debouncer.add('event1');
       debouncer.add('event2');
-      expect(debouncer.shouldFlush(0)).toBe(true);
+      expect(debouncer.shouldFlush(100)).toBe(true);
       const events = debouncer.flush(100);
       expect(events).toEqual(['event1', 'event2']);
     });