feat(5.9): US-003 - modal reutilizabil (overlay, focus-trap, a11y) + cleanup inline-expand 5.8

- base.html: #modal-detaliu (role=dialog, aria-modal) + #detaliu-modal-body swap target;
  focus-trap, inert+aria-hidden pe <main>, Esc/backdrop/x inchid, listener trimiteriChanged (R5/R7)
- _coada.html: ancora modal in afara #submissions-wrap; sters #trimitere-detaliu inert vechi
- _submissions.html: randul declanseaza modalul; sters tr.detaliu-rand sibling (R3)
- _trimitere_detaliu.html: script rescris pentru modal, fara marcheazaDetaliuDeschis/scrollIntoView (R4)
- teste: test_web_modal.py nou (3); test_web_detaliu_inline.py sters; test_acasa_trimiteri.py curatat (R3)
- gates: pytest PASS (suita completa 819). Browser E2E + design-review deferate la VERIFY.

Salvat manual: iteratiile Ralph 2-12 au ramas fara turns (30) inainte de commit.

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

app/web/routes.py

@@ -1112,10 +1112,14 @@ async def post_corectie_trimitere(request: Request, submission_id: int) -> HTMLR
                              message="Exista deja o trimitere identica. Corectia a fost oprita."),
             )
         row2 = _fetch_submission_scoped(conn, account_id, submission_id)
-        return templates.TemplateResponse(
+        resp = templates.TemplateResponse(
             "_trimitere_detaliu.html",
             _detaliu_ctx(request, row2, message="Corectat — randul a fost re-pus in coada."),
         )
+        # PRD 5.9 US-003 (R5): pe succes, lista se reincarca (trimiteriChanged) si modalul
+        # se inchide (inchideModal). After-settle ca inchiderea sa urmeze swap-ul fragmentului.
+        resp.headers["HX-Trigger-After-Settle"] = "trimiteriChanged, inchideModal"
+        return resp
     finally:
         conn.close()
 
@@ -1172,7 +1176,8 @@ async def post_sterge_trimitere(request: Request, submission_id: int) -> HTMLRes
         resp = HTMLResponse(
             '<div class="flash" style="margin:0;">Trimitere stearsa.</div>'
         )
-        resp.headers["HX-Trigger"] = "trimiteriChanged"
+        # PRD 5.9 US-003 (R5): pe succes, lista se reincarca + modalul se inchide.
+        resp.headers["HX-Trigger-After-Settle"] = "trimiteriChanged, inchideModal"
         return resp
     finally:
         conn.close()