GRAFO_D_V48_RUN

Base:
- SQLite canonical database only.
- DATABASE/GRAFO_D_DATABASE.sqlite remains the single source of truth.
- No secondary persistent database.

Inherited from V47:
- API ingest writes to SQLite.
- API sensor is backend-driven.
- New graph creates only graph/container.
- Empty graphs are visible.
- Empty graphs do not fabricate timeline events.
- Delete selected performs physical transactional deletion.
- Graph deletion removes graph, events, associated API registry traces, API ingest logs, and UI references.

V48 additions:
- Right-click on graph name opens manual action menu.
- Add element opens manual technical card.
- Manual element save writes to SQLite through POST /api/events.
- Manual element appears in graph element list and timeline.
- Owning graph is auto-selected after manual element creation.
- DATE field supports smart input:
  - YYYY
  - YYYY-MM
  - YYYY-MM-DD
  - DD/MM/YYYY
  - DD-MM-YYYY
  - YYYY/MM/DD
  - Month YYYY
  - DD Month YYYY
  - Spanish and English month names.
- Year-only dates are valid and placed at year level.

Validation policy:
- Manual element creation does not fabricate events before Save element.
- Graph creation remains container-only.