Implements ConnectorPlugin for Intune Graph API operations.
Governed invocation: every Intune call requires an active AC
and emits a Chronicle CONNECTOR_INVOKED event.
Operations: list, get, compliance check, sync, lock, retire, wipe.
In-memory compliance cache with configurable TTL.
Conditional registration via intune_enabled setting.
Signed-off-by: Tyler King <tking@guildhouse.dev>
