docs(14.2.1): create phase plan

.planning/ROADMAP.md

@@ -830,7 +830,7 @@ Plans:
 Plans:
 - [ ] TBD (run $gsd-plan-phase 14.2 to break down)
 
-### Phase 14.2.1: Translate plugin (INSERTED) — complete 2026-10-06
+### Phase 14.2.1: Translate plugin (INSERTED)
 
 **Goal:** Golem15.Translate is ported to Go as `sm-translate-plugin` so Journal (Phase 15) can keep translatable fields. Lean core only: Locale model and Locales admin, Translatable API, cabana `mltext`/`mlmarkdown`, and PHP Translator locale resolution (URL prefix / session / cookie / default).
 **Requirements**: TBD
@@ -843,7 +843,7 @@ Plans:
   3. Cabana `markdown`/`mltext`/`mlmarkdown` compose; nested locale writes are not dropped; docs, OpenAPI, TS types and `boardwalk` `dist/` update in the same change.
   4. Proof host `sm-grzybyfunkcjonalne-app` boots with user+translate; unit tests are the last plan.
 
-**Plans:** 4/4 plans executed
+**Plans:** 4/6 plans executed
 
 Plans:
 
@@ -859,6 +859,16 @@ Plans:
 **Wave 4** *(blocked on Wave 3 completion)*
 - [x] 14.2.1-04-PLAN.md — Unit/integration tests last, phase gate, security review
 
+**Wave 5** *(gap closure, blocked on Wave 4 completion)*
+- [ ] 14.2.1-05-PLAN.md — Hydrate enabled locales on admin ML forms (CR-01)
+
+**Wave 6** *(gap closure, blocked on Wave 5 completion)*
+- [ ] 14.2.1-06-PLAN.md — Lift ML maps on relation-child saves (WR-02); named tests last
+
+**Cross-cutting constraints:**
+- Nested locale writes are not dropped on the admin form path and on relation-child saves
+- The SPA lists every enabled locale, switches all ML controls together, and sends `Record<string,string>`
+
 ### Phase 15: Journal plugin
 
 **Goal:** The Golem15 Journal plugin is ported to Go as `sm-journal-plugin` and mounts in a host application the same way `sm-user-plugin` does, so a blog can run on SummerCMS without the PHP plugin.