feat(5.15+5.14): CLOSE — fix-uri code-review + embeddings functional

5.15 (propagare design + dashboard editare) si 5.14 (mapare LLM distilata)
inchise dupa /code-review high. 8 buguri reparate TDD:

- HIGH modal nu se deschidea pe randul slim (base.html: trimitere-slim)
- HIGH /repune trunchia prestatii (declaratie incompleta la RAR) -> iterare
  peste existing, codes pozitional
- HIGH embeddings incarca model ~230MB degeaba pe corpus gol -> poarta has_corpus()
- HIGH picker chips gol pe re-render eroare -> conn/account_id pe toate ramurile
- MED obs re-derivat dupa stergere explicita -> _merge_override pastreaza obs=''
- MED mapare salvata fara denumire poluă GOLD -> _record_gold_validation guard
- MED typo nome_prestatie -> nume_prestatie in select /repune
- MED bucketare timp +3h gresita iarna -> SQLite localtime + TZ=Europe/Bucharest

Embeddings WIRE-uit functional (PRD #15, decizie user): ensure_embeddings_corpus
construieste corpus din nomenclator, gated pe AUTOPASS_EMBEDDINGS_ENABLED (default
off). Marime model corectata ~50MB->~230MB (estimare PRD gresita).

Cleanup: hoist load_* din bucla bulk-fix; import re la top.
Regresie: 1256 passed, 1 deselected (live), 0 failed.

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

tests/test_web_submissions_layout.py

@@ -82,14 +82,14 @@ def client(monkeypatch):
 
 
 def test_vin_pe_rand_separat_sub_nr(client):
-    """VIN-ul apare intr-un element block-level (div/p/small cu display:block) sub nr.
+    """VIN-ul apare intr-un element block-level cu clasa slim-vin (PRD 5.15 US-004).
 
-    Inainte: <span class="muted">...VIN...</span> inline.
-    Dupa:    <div class="muted">...VIN...</div> (block, rand separat).
-    Testul asserteaza prezenta unui element block, nu doar textul.
+    PRD 5.10 (US-005): VIN era <div class="muted"> sub nr in coloana Vehicul.
+    PRD 5.15 (US-004): VIN e acum identificatorul PRINCIPAL, linia 1 a randului slim,
+    in <div class="slim-vin"> (mono, prominent, block-level). NU mai e muted.
     """
     acct = _create_account_user("vin_layout@test.com")
-    sid = _ins(acct, vin="WVWZZZ1JZXW000001", nr="B123XYZ")
+    _ins(acct, vin="WVWZZZ1JZXW000001", nr="B123XYZ")
     _login(client, "vin_layout@test.com")
 
     resp = client.get("/_fragments/submissions")
@@ -97,44 +97,29 @@ def test_vin_pe_rand_separat_sub_nr(client):
     html = resp.text
 
     # VIN trunchiat trebuie sa apara in HTML
-    assert "000001" in html, "VIN-ul trunchiat trebuie sa apara in tabel"
+    assert "000001" in html, "VIN-ul trunchiat trebuie sa apara in lista slim"
 
-    # Elementul ce contine VIN-ul trebuie sa fie block-level (div, p, small etc.)
-    # NU un simplu <span> inline.
-    # Pattern: <div ... >...000001...</div> sau <p ... >...000001...</p>
-    # Acceptam orice block-level tag (div/p/small) care contine fragmentul VIN.
-    block_tags = ["div", "p", "small"]
+    # VIN e intr-un element block-level (div cu clasa slim-vin)
+    # Pattern: <div class="slim-vin">...000001...</div>
     vin_fragment = "000001"
-    found_block = any(
-        re.search(
-            rf"<{tag}[^>]*>[^<]*{re.escape(vin_fragment)}[^<]*</{tag}>",
-            html,
-        )
-        for tag in block_tags
+    found_slim_vin = re.search(
+        rf'<div[^>]*class="slim-vin[^"]*"[^>]*>[^<]*{re.escape(vin_fragment)}[^<]*</div>',
+        html,
     )
-    assert found_block, (
-        f"VIN '{vin_fragment}' trebuie sa fie intr-un element block-level "
-        f"(div/p/small), nu intr-un <span> inline. HTML gasit: "
+    assert found_slim_vin, (
+        f"VIN '{vin_fragment}' trebuie sa fie in <div class=\"slim-vin\"> (block-level, "
+        f"mono, linia 1 a randului slim). HTML gasit: "
         + html[max(0, html.find(vin_fragment) - 80):html.find(vin_fragment) + 80]
     )
 
-    # Elementul block trebuie sa aiba clasa 'muted' (stil discret)
-    muted_block = any(
-        re.search(
-            rf'<{tag}[^>]*class="[^"]*muted[^"]*"[^>]*>[^<]*{re.escape(vin_fragment)}[^<]*</{tag}>',
-            html,
-        )
-        for tag in block_tags
-    )
-    assert muted_block, (
-        f"Elementul block cu VIN trebuie sa aiba clasa 'muted'"
-    )
-
 
 def test_vin_lipsa_nu_genereaza_rand_gol(client):
-    """Cand VIN-ul lipseste (sau e EMPTY='—'), nu apare un element gol in celula Vehicul."""
+    """Cand VIN-ul lipseste (sau e EMPTY='—'), slim-vin nu afiseaza '—' izolat.
+    Fallback: slim-vin afiseaza vehicul_nr (nr. inmatriculare) cu clasa muted.
+    (PRD 5.15 US-004: slim-vin are garda vin != '—')
+    """
     acct = _create_account_user("vin_gol@test.com")
-    sid = _ins(acct, vin="", nr="B999TST")  # VIN gol -> EMPTY="—"
+    sid = _ins(acct, vin="", nr="B999TST")  # VIN gol -> vin_scurt='—'
     _login(client, "vin_gol@test.com")
 
     resp = client.get("/_fragments/submissions")
@@ -144,8 +129,13 @@ def test_vin_lipsa_nu_genereaza_rand_gol(client):
     # Randul trebuie sa existe
     assert f'id="trimitere-row-{sid}"' in html
 
-    # In coloana vehicul nu trebuie sa apara un element block gol cu "—"
-    # (garda != '—' exista deja, verifica ca e respectata)
-    assert 'class="muted"' not in html.split('col-vehicul')[1].split('col-operatie')[0] or \
-           '—' not in (html.split('col-vehicul')[1].split('col-operatie')[0]), \
-        "Elementul muted din coloana Vehicul nu trebuie sa contina '—' (rand gol VIN)"
+    # slim-vin NU trebuie sa contina '—' izolat (VIN lipsa -> fallback vehicul_nr)
+    slim_vin_match = re.search(r'<div[^>]*class="slim-vin[^"]*"[^>]*>([^<]*)</div>', html)
+    assert slim_vin_match, "slim-vin lipseste din randul cu VIN gol"
+    slim_vin_content = slim_vin_match.group(1).strip()
+    assert slim_vin_content != "—", (
+        "slim-vin afiseaza '—' izolat cand VIN lipseste — "
+        "trebuie sa afiseze vehicul_nr ca fallback"
+    )
+    # Fallback: nr inmatriculare vizibil
+    assert "B999TST" in html, "Nr inmatriculare (fallback) lipseste cand VIN e gol"