Features:
- Playwright timeout: 30s → 60s (handles slow networks)
- API dynamic timeout: 60s + 1s per 100 chars, max 600s
- Progress spinner with elapsed time [Xs] format
- Fixes timeout issues with large Gemini conversations

Technical:
- Add yaspin>=3.0.0 dependency
- Custom TimedText class for clean time display
- All tests pass (11/11)