feat(5.9): US-001 - eticheta umana scurta pe rand + cod brut pentru modal (R1)

- _submission_row_view expune eticheta_problema (motiv || eticheta_scurta), gol pe queued/sending/sent, fara decoder nou (R1 DRY)
- parse_erori expune cheia `cod` (cod brut catalog) pe ramurile imbogatite, pentru derivare in modal
- 5 teste US-001 in tests/test_web_submissions.py
- gates: tests PASS (819), /review (backend) PASS

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

scripts/ralph/prd.json

@@ -33,12 +33,12 @@
       "dependsOn": [],
       "requiresBrowserCheck": false,
       "requiresDesignReview": false,
-      "passes": false,
+      "passes": true,
       "failed": false,
       "blocked": false,
       "retries": 0,
       "failureReason": "",
-      "notes": ""
+      "notes": "Atins: app/web/routes.py (_eticheta_problema + _STARI_CU_PROBLEMA, camp eticheta_problema in _submission_row_view, motiv hoisted), app/web/labels.py (parse_erori expune `cod` brut aditiv pe ramurile imbogatite), tests/test_web_submissions.py (5 teste US-001). gates: tests PASS (819 suite, 22 fisier), /review (backend) PASS (no issues — DRY respectat, defensiv, aditiv non-regresie)."
     },
     {
       "id": "US-003",