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

feat: add graceful shutdown mechanism to stop guardian after configuration re-application

feat: add success cooldown and status check to avoid redundant WhatsApp pairing attempts

refactor: condense code formatting and add OpenClaw scope-clearing patch to startup script

refactor: simplify WhatsApp guardian logic by removing redundant channel status checks and handling session invalidation via error catching

refactor: update gateway connection handshake parameters and scope permissions for health-server and wa-guardian

refactor: simplify gateway connection and update handshake parameters in wa-guardian.js

feat: update gateway connection to use token-based authentication and web-client identity headers

feat: update connection handshake parameters to include protocol version, role, and client capabilities

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

feat: implement real-time channel status monitoring and add authentication failure cooldowns to guardian and health server

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