docs: sistem ROADMAP unic (progres + proces) + template PRD

Inlocuieste planurile vechi (consolidate/realizate) cu un singur
docs/ROADMAP.md: dashboard de progres (Treapta 1+2 DONE LIVE, Etapa 3
TODO) + proces de dezvoltare embedded (PLAN separat de EXECUTE/VERIFY
pe sesiuni, PRD per livrabila cu stories atomice, agent team, bootstrap
reluabil din starea PRD).

- adauga docs/prd/TEMPLATE-prd.md (schelet PRD)
- sterge docs/plans/plan.md (Treapta 1 realizat), plan-treapta2.md
  (Treapta 2 realizat), docs/CONTEXT.md (snapshot neactual)
- actualizeaza referintele in README.md si api-rar-contract.md

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

README.md

@@ -248,7 +248,7 @@ sunt momentan **neprotejate si globale** (nu filtreaza pe cont). Filtrarea pe co
 | Creds RAR durabile per cont | **Implementat** | `POST /v1/conturi/rar-creds` |
 | Creare cont nou (service) | **De facut / manual** | momentan prin `INSERT` SQL (vezi mai jos); nu exista tool/endpoint dedicat |
 | Protejare + filtrare pe cont a GET-urilor de listare | **De facut** | `GET /v1/prezentari`, `/v1/nomenclator`, `/v1/audit/export` sunt globale acum |
-| Self-onboarding web (login email+parola -> emite cheie) | **In plan** | `docs/plans/plan-treapta2.md` (sect. login web) — neimplementat |
+| Self-onboarding web (login email+parola -> emite cheie) | **De facut** | `docs/ROADMAP.md` (Etapa 3.3) — neimplementat |
 
 > Lifecycle-ul cheilor se face DOAR din CLI, pe masina gateway-ului (admin) — nu exista
 > suprafata HTTP de administrare de securizat. Cheia in clar se afiseaza **o singura data**
@@ -406,10 +406,10 @@ app/
   mapping.py         # mapare operatie -> cod prestatie + fuzzy lookup
   crypto.py          # criptare Fernet creds RAR efemere (zero-storage at rest)
   schema.sql         # schema SQLite
-docs/                # contract RAR (sursa de adevar) + planuri + context
+docs/                # contract RAR (sursa de adevar) + ROADMAP (progres + proces)
 tests/               # suita pytest
 legacy-vfp/          # arhiva Visual FoxPro ROAAUTO (legacy, doar referinta/migrare)
 ```
 
-Detalii de continuitate intre sesiuni: [`docs/CONTEXT.md`](docs/CONTEXT.md).
-Plan executabil: [`docs/plans/plan.md`](docs/plans/plan.md).
+Contract RAR (sursa de adevar): [`docs/api-rar-contract.md`](docs/api-rar-contract.md).
+Roadmap + proces de dezvoltare: [`docs/ROADMAP.md`](docs/ROADMAP.md).