Replaced legacy tenant and environment bindings in the BaselineDriftEngine with the new ProviderResourceIdentity framework as defined in Spec 382. This ensures cross-environment compatibility and deterministic baseline matching.
Co-authored-by: Ahmed Darrazi <ahmed.darrazi@live.de>
Reviewed-on: #453
Added `ProviderResourceBinding` model, migrations, policies, and supporting framework for canonical resource identity mapping as defined in Spec 381. This provides the structural capability to resolve baseline and posture discrepancies by binding logical entities across source providers to canonical identities.
Co-authored-by: Ahmed Darrazi <ahmed.darrazi@live.de>
Reviewed-on: #452
