Face Gallery & S3 Sync – Major Rewrite

🆕 Face Gallery & S3 Sync – Major Rewrite

🔁 Completely rewritten S3 synchronization system for the face gallery

📁 Home Assistant .storage is no longer used for gallery data

✅ The gallery is now stored as a real, stable JSON file at
/config/amazon_face_gallery/gallery.json

☁️ Reliable and deterministic S3 sync:

on startup, data is downloaded from S3 if no local cache exists

every add/remove operation updates both local cache and S3

the Refresh button realigns the local cache with the actual S3 state

🧩 Legacy compatibility included:

supports old S3 files (gallery_store.json, amazon_face_recognition_gallery)

automatic one-time migration from .storage to the new file-based format

🖥 Panel UI fix:

gallery status and controls are now rendered correctly on first load

no manual browser refresh required anymore

👉 No YAML configuration required
👉 No existing features removed (including the image refresh button)