Fix annotation test: use single-line Python with real Orpheus data

Add test annotation job for 1000 Orpheus samples

🎉 REAL SkyPilot Test PASSED - Cloud Infrastructure Validated!

Fix YAML syntax in SkyPilot test (use heredoc for Python blocks)

🧪 Real SkyPilot Validation Test

✅ End-to-End Test (1% Pipeline Validation)

🚀 SkyPilot Multi-Cloud GPU Support + Synthetic Data Generation

✅ GCP Spot Instance Test Completed Successfully

Add visual demo and animated GIF walkthrough

Add GCP testing options and Python API launcher

Add comprehensive testing infrastructure

Add complete infrastructure and updated README for OPTION A

Implement OPTION A: Optimized 3-model ensemble with fine-tuning

Initial commit: Ensemble TTS Annotation System