fix: record selected game_type on the generated game

feat: retrieval for the new dataset added

feat: Enhance GPU memory management and audio loading in ASR and generator services

feat: Enhance model unloading and authentication for GPU memory management in ASR and image generation services

feat: add poster generation from session recap data and improve model caching

feat: city_context: Add real-world city context from Wikipedia to generation prompt

refactor: update model path handling and download logic for GPU compatibility

hf fix: update model loading for GPU compatibility on HF Spaces

Llamacpp addition and Hugging Face Spaces Zero GPU integration

Phase 2: ship the core happy path

Phase 1: establish the baseline