docs(architecture): mark Phase 3 career foundation shipped

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

docs/architecture/career-profile-model.md

@@ -7,6 +7,27 @@
 > Companion to `docs/architecture/current.md` §4a (profile/career separation) and
 > `docs/decisions/ADR-002-job-application-model.md`. Verified against code on 2026-07-18.
 
+> ## Implementation status (2026-07-18) — SHIPPED
+>
+> The model below is implemented on `main` and verified against the live database:
+> - **Entities** (`Models/CareerEntities.cs`): `CareerExperience`, `CareerEducation`, `CareerSkill`,
+>   `CareerProject`, `CareerCertification`, `CareerLanguage` — relational children of `CareerProfile`;
+>   long tail in `CareerProfile.LongTailJson`. Migration `AddCareerProfileRelationalChildren`
+>   (applied cleanly on the real dev DB and the running container).
+> - **Projection** (`CareerProfileService` + `CareerProfileMapper`): relational is the source of
+>   truth; `SaveVersionAsync` syncs children + long tail; `LoadStructuredAsync` reads relationally
+>   with lazy backfill from the blob; the `ProfileCvStructureJson` blob is kept as the derived
+>   projection.
+> - **API** (`CareerProfileController`, `/api/career/profile`): GET/PUT profile, GET completeness,
+>   GET versions, POST version restore. Validation via `CareerProfileValidator` (abuse limits).
+> - **Frontend** (`/career`): reads/writes the relational API, profile-completeness overview,
+>   version-history restore.
+> - **Tests**: 23 career-focused backend tests (round-trip, item-key stability, replace-all,
+>   backfill, completeness, validation, versioning/restore) + frontend save/completeness tests.
+>
+> Not yet done (later): promote the long tail to relational if needed; a full section-by-section UX
+> redesign of the editor; the eventual removal of the derived blob once every reader flips.
+
 ---
 
 ## 1. Where we start (F1, on `main`)