- Implement runtime package for bridge startup, config loading, and env
overrides
- Add onboarding package for management room welcome messages
- Add matrixcmd package for command processing and help
- Add webhook package with Radarr webhook support and validation
- Extend connector config for webhooks and validation
- Update default config and example config for new options
- Add tests for new packages and config validation
- Change database type default to sqlite3-fk-wal
Move Caddy configuration from individual services to a shared
networking.caddy module. Update service modules and system config to use
the new interface. Remove redundant user definitions and old Caddy
config blocks.
