Implement registration identity model

workplans/USER-WP-0010-registration-identity-and-factor-model.md

@@ -4,7 +4,7 @@ type: workplan
 title: "Registration Identity And Factor Model"
 domain: netkingdom
 repo: user-engine
-status: proposed
+status: finished
 owner: codex
 topic_slug: netkingdom
 planning_priority: high
@@ -46,7 +46,7 @@ lifecycle, sessions, and tokens remain external adapter concerns.
 
 ```task
 id: USER-WP-0010-T1
-status: todo
+status: done
 priority: high
 state_hub_task_id: "2a6c93de-e320-41e6-8930-7a4099c5757a"
 ```
@@ -57,7 +57,7 @@ stability, visibility, privacy, and migration expectations.
 
 ```task
 id: USER-WP-0010-T2
-status: todo
+status: done
 priority: high
 state_hub_task_id: "31ddb44e-b7d1-406e-9114-78c5e7f92478"
 ```
@@ -67,7 +67,7 @@ factor_pending, factor_verified, completed, abandoned, expired, and rejected.
 
 ```task
 id: USER-WP-0010-T3
-status: todo
+status: done
 priority: high
 state_hub_task_id: "7441f064-eb49-4e66-8c1d-a2626aae020c"
 ```
@@ -78,7 +78,7 @@ evidence references without storing secret proofing payloads.
 
 ```task
 id: USER-WP-0010-T4
-status: todo
+status: done
 priority: high
 state_hub_task_id: "7057afda-d585-48cd-bac1-f0bd0f05fef5"
 ```
@@ -88,7 +88,7 @@ proofing results and return normalized factor evidence for user-engine.
 
 ```task
 id: USER-WP-0010-T5
-status: todo
+status: done
 priority: high
 state_hub_task_id: "f4f0da38-9810-45e7-ab4e-0619eb45b3c4"
 ```
@@ -98,7 +98,7 @@ complete, abandon, and resume flows.
 
 ```task
 id: USER-WP-0010-T6
-status: todo
+status: done
 priority: medium
 state_hub_task_id: "c29b31cd-f2b2-41b6-86ee-9c78470abf01"
 ```
@@ -123,3 +123,35 @@ factor lifecycle transitions.
 - Registration service facade.
 - Factor verification adapter ports.
 - Documentation and tests for the basic self-registration flow.
+
+## Implementation Notes
+
+Implemented on 2026-06-15:
+
+- Defined NetKingdom ID semantics as the existing opaque `User.user_id` for
+  this first slice.
+- Added `RegistrationStatus`, `IdentityFactorType`, `FactorVerification`,
+  `IdentityFactor`, and `RegistrationSession` domain models.
+- Added registration and factor persistence to `UserEngineStore` and
+  `InMemoryUserEngineStore`.
+- Added `FactorVerificationAdapter` for normalizing external proofing results
+  into safe factor evidence.
+- Added `UserEngineService` registration facade methods:
+  `start_registration`, `attach_registration_factor`,
+  `complete_registration`, `abandon_registration`, `expire_registration`,
+  `resume_registration`, and `registration_diagnostics`.
+- Added audit/outbox events for registration lifecycle transitions while
+  keeping factor values out of event payloads and diagnostics.
+- Added `docs/registration-identity-and-factor-model.md` and public contract
+  updates.
+- Added tests for successful email-backed registration, required-factor
+  enforcement, adapter-normalized factor evidence, and abandoned-session
+  behavior.
+
+Verification:
+
+```text
+make test
+Ran 46 tests in 0.162s
+OK
+```