feat(permissions): add credential access permission system#128
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Josie123-Dev merged 1 commit intoJul 23, 2026
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Implement a granular, role-based access control system for credential operations, addressing issue GuardZero144#51. - Define a permission model: granular CredentialPermission levels and named CredentialRole roles with a static role -> permission mapping. - Add a RoleAssignment entity for role grants, scoped globally or to a single credential resource, with optional expiry. Re-granting reactivates rather than duplicating; revocation deactivates to preserve history. - Implement permission checks in PermissionsService (getEffectiveRoles, getEffectivePermissions, hasPermission) honouring scope and expiry. - Add a RequirePermission decorator and PermissionsGuard so other feature modules can protect credential routes declaratively. - Audit every role grant and revocation via the tamper-evident AuditService using new role_assigned / role_revoked operation types. - Expose a REST surface for role management (admin-only), self-inspection and permission checks. - Cover the service and guard with unit tests, and document the system in docs/PERMISSIONS.md.
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Closes #51
Summary
Implements a granular, role-based credential access permission system for the backend (
backend/src/permissions/).permission.model.ts) — granularCredentialPermissionlevels (credential:read/verify/issue/revoke/share,permission:manage,audit:read) and namedCredentialRoles (viewer,verifier,issuer,admin) with a staticROLE_PERMISSIONSmapping as the single source of truth.role-assignment.entity.ts) — assign a role to a wallet, globally (*) or scoped to a single credential resource, with optional expiry. A(grantee, resource, role)triple is unique: re-granting reactivates/refreshes rather than duplicating, and revocation deactivates to preserve history.permissions.service.ts) —getEffectiveRoles,getEffectivePermissionsandhasPermission(wallet, permission, resourceId?), honouring scope (global grants satisfy any resource) and expiry.@RequirePermission(...)decorator +PermissionsGuardso other feature modules can protect their credential routes with a one-liner.AuditService, using two newrole_assigned/role_revokedoperation types.permissions.controller.ts) — admin-only role management, plus self-inspection (GET /permissions/me) and permission checks (POST /permissions/check).Acceptance criteria
PermissionsGuard+@RequirePermissionhasPermissionwith scope/expiry resolutionrole_assigned/role_revokedentriesTesting
permissions.service.spec.ts,permissions.guard.spec.ts(16 tests, all passing).src/permissions/.Documentation added in
backend/docs/PERMISSIONS.md.