Function enforcement_enabled 

pub fn enforcement_enabled() -> bool

Is mandatory per-call MCP enforcement turned ON? Default OFF (opt-in via the env flag QUALIA_MCP_ENFORCE=1), so today’s callers are unaffected; flip it per-deployment when callers can supply a verified, grounded standpoint. When ON, every dispatched MCP call must pass authorize or it is refused. (Track M — the breaking-change switch, held by the operator.)