docs: start identity permission extraction

REFACTORING-AUDIT.md

@@ -301,6 +301,11 @@ The current composition root is `cmd/serve.go`; `repository.System` aggregates P
 - Added a domain-session `SessionStore` contract, infrastructure adapter over the legacy cache/persistence composition, and runtime wiring for IAM retrieval; full Auth tests pass in `d744ffc`. The adapter deliberately preserves existing Redis-expiry semantics without activating stricter status checks during the refactor.
 - Routed login and refresh-session persistence through the same application boundary with legacy fallback retained; full Auth tests and vet pass in `c15bcff`.
 - Added a distinct persistent `BySubject` session lookup and routed refresh-token rotation through it, deliberately keeping it separate from access-token Redis lookup so refresh validity is not capped by access expiry; full Auth tests and vet pass in `016d705`. A005 is complete; compatibility fallback removal remains under A008.
+
+### `A006` — identity and permission checkpoint
+
+- Extracted case-insensitive route/method evaluation and privileged-role detection into `application/permission`, retaining development-mode bypass and existing gRPC error mapping; focused and full Auth tests pass in `9f97cec`.
+- A006 remains in progress: permission repository wiring and identity application orchestration still need extraction.
 - A005 remains in progress: JWT validation, session checks, refresh-token flow, and broader authentication orchestration still need application ports and adapters.
 
 ### `I001` — publisher-backed ICO purchase map

REFACTORING-TODO.md

@@ -109,7 +109,7 @@ This is the authoritative execution tracker for the refactor. Work is performed
 | A003 | `STARTED` | Move auth persistence and Redis implementations into infrastructure. | Explicit mappings and domain-port adapters now cover users, identities, sessions, permissions, roles, role-permissions, bank information, OTP templates, and cache; legacy repository integration and ownership migration remain. |
 | A004 | `DONE` | Extract OTP application use cases and thin gRPC adapters. | OTP primitives, persistence/provider adapters, runtime/template wiring, and thin gRPC registration adapters are in place; full Auth tests pass. |
 | A005 | `DONE` | Extract authentication/JWT application use cases and adapters. | Token policies, JWT verification, cached/persistent session reads, and session writes are extracted and runtime-wired while preserving access/refresh expiry semantics. |
-| A006 | `TODO` | Extract identity and permission use cases and adapters. | Public and internal authorization services pass tests. |
+| A006 | `STARTED` | Extract identity and permission use cases and adapters. | Route/method and privileged-role permission policy is extracted; repository wiring and identity orchestration remain. |
 | A007 | `TODO` | Replace auth bootstrap with explicit dependency composition. | Dependency direction is enforced and the service builds. |
 | A008 | `TODO` | Remove superseded auth packages and compatibility shims. | No dead imports or duplicate implementations remain. |
 
@@ -305,3 +305,4 @@ Append one row whenever a task changes status. Existing rows are never rewritten
 | 2026-08-30 | A005 | `STARTED` | `STARTED` | Added and runtime-wired the authentication session-store boundary for IAM retrieval while preserving Redis-expiry behavior; full Auth tests pass in `d744ffc`. |
 | 2026-08-30 | A005 | `STARTED` | `STARTED` | Routed login and refresh session writes through the authentication session-store boundary with compatibility fallback; full Auth tests and vet pass in `c15bcff`. |
 | 2026-08-30 | A005 | `STARTED` | `DONE` | Routed refresh lookup through the persistent session boundary (distinct from access-session cache lookup); full Auth tests and vet pass in `016d705`. |
+| 2026-08-30 | A006 | `TODO` | `STARTED` | Extracted case-insensitive route/method and privileged-role permission policy into `application/permission`; full Auth tests pass in `9f97cec`. |