Module manager 

Settings Manager — runtime configuration administration.

SettingsManager is the single source of truth for all application settings after the first boot. It:

1. Seeds the database on first boot from the resolved AppConfig (config file + env vars + CLI) using typed JSON Schemas.
2. Detects drift on subsequent boots: settings changed via the REST API and not reflected in the config file are flagged is_drift=true in the in-memory cache, while the DB value is preserved.
3. Validates every write against the parent type’s JSON Schema.
4. Exposes an extension API (register_extension) so plugins can add their own settings namespaces without touching any UAR code.
5. Caches all settings in memory for sub-μs reads at runtime.

Structs

GovernanceMutationResult

SettingsManager

Thread-safe runtime settings manager.

Enums

GovernanceMutationStatus

Constants

SIDECAR_GLOBAL_MCP_DISABLED

Error code returned when a sidecar refuses global MCP server mutation.