refactor: modularize workspace sync logic and optimize state snapshotting with reduced sync interval

feat: add Hugging Face backup configuration and support for global app routing

feat: add optional WhatsApp integration with toggle support and status tracking

refactor: delay workspace sync and guardian startup until after gateway initialization

feat: implement persistent WhatsApp credential syncing and automatic session recovery in guardian and health-server

feat: add WhatsApp pairing guardian, improve DNS resolution, and implement workspace sync status reporting

v1.1.0: Pre-built Docker image, huggingface_hub sync, password auth, trusted proxies