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>

app/web/templates/_form_editare.html

@@ -1,17 +1,22 @@
-{# _form_editare.html — partial partajat: campurile vehicul/data/odometru.
-   US-005 (PRD 5.12): extras DRY din _trimitere_detaliu.html; refolosit si de
-   _preview_rand.html (US-006) pentru editarea randurilor de import in modal.
+{# _form_editare.html — partial partajat slim: campurile vehicul/data/odo + obs + chips prestatii.
+   US-007 (PRD 5.15): redesign slim cu VIN unic, Observatii textarea, chips prestatii (E4),
+   si reveal dinamic odometru initial cand chips contin R-ODO/I-ODO (D10c, E6 server-driven).
 
    Inclus cu {% include "_form_editare.html" %} INSIDE un <form> element al
    template-ului parinte. Acel parinte pune form-ul, CSRF-ul si orice campuri
-   suplimentare (ex. select cod_prestatie din _trimitere_detaliu.html).
+   suplimentare.
 
-   Necesita din context (setate de parinte inainte de include):
+   Variabile necesare din context (setate de parinte inainte de include):
      form_nr          — valoare curenta nr_inmatriculare
      form_vin         — valoare curenta vin
      form_data        — valoare curenta data_prestatie (YYYY-MM-DD sau brut)
      form_odo_final   — valoare curenta odometru_final
      form_odo_initial — valoare curenta odometru_initial
+     obs_val          — valoare curenta obs (Observatii), text liber (default '')
+     prestatii_chips  — list of {cod_prestatie, cod_op_service, denumire} (default [])
+     nomenclator_rar  — list of {cod_prestatie, nume_prestatie} pentru picker (default [])
+     has_r_odo        — True daca chips contin R-ODO/I-ODO (server-computed, default False)
+     form_chips_url   — URL pentru HTMX chip endpoint (default '/form-chips')
      err_map          — dict {field_name: mesaj_eroare} (poate fi {})
      fix_map          — dict {field_name: hint_fix} (poate fi {})
      vin_context      — string VIN pentru aria-label (poate fi '')
@@ -19,23 +24,78 @@
 #}
 {% from "_macros.html" import camp, icon %}
 
-{# Nr. inmatriculare pe rand propriu, VIN dedesubt — ambele latime plina. #}
-{{ camp('nr_inmatriculare', 'Numar inmatriculare', form_nr,
-        err_map=err_map, fix_map=fix_map, vin_context=vin_context) }}
-{{ camp('vin', 'VIN (serie sasiu)', form_vin,
+{# === 1. VIN — camp unic (fara "Confirma VIN"; contractul RAR cere un singur VIN) === #}
+{{ camp('vin', 'VIN (serie sasiu)', form_vin, slim=True, mono=True,
         err_map=err_map, fix_map=fix_map, vin_context=vin_context) }}
 
-{# Restul campurilor in grila responsiva existenta. #}
-<div style="display:grid; grid-template-columns:repeat(auto-fit, minmax(200px, 1fr)); gap:0 16px;">
-  {{ camp('data_prestatie', 'Data prestatie', form_data, tip='date',
+{# === 2. Data prestatie + Nr. inmatriculare — grila 2 coloane === #}
+<div style="display:grid; grid-template-columns:1fr 1fr; gap:0 12px;">
+  {{ camp('data_prestatie', 'Data prestatiei', form_data, tip='date', slim=True,
           err_map=err_map, fix_map=fix_map, vin_context=vin_context) }}
-  {{ camp('odometru_final', 'Odometru final', form_odo_final,
-          err_map=err_map, fix_map=fix_map, vin_context=vin_context) }}
-  {{ camp('odometru_initial', 'Odometru initial (daca e cerut)', form_odo_initial,
+  {{ camp('nr_inmatriculare', 'Numar inmatriculare', form_nr, slim=True, mono=True,
           err_map=err_map, fix_map=fix_map, vin_context=vin_context) }}
 </div>
 
-{# Buton primar parametrizat.
+{# === 3. Observatii (obs) — textarea liber, US-005 === #}
+<div class="camp-slim">
+  <label for="c-obs">Observatii (operatiile efectuate)</label>
+  <textarea id="c-obs" name="obs" rows="2"
+            aria-label="Observatii (operatiile efectuate){% if vin_context %} (VIN: {{ vin_context }}){% endif %}"
+            placeholder="ex: Revizie; schimbare placute frana">{{ obs_val or '' }}</textarea>
+</div>
+
+{# === 4. Prestatii chips (E4 server-driven, US-007) === #}
+{% set form_chips_url = form_chips_url or '/form-chips' %}
+{% set chips_section_id = 'chips-section' %}
+{% include "_chips_prestatii.html" %}
+
+{# === 5. Odometru final — intotdeauna vizibil === #}
+{{ camp('odometru_final', 'Odometru final (km)', form_odo_final, slim=True, mono=True,
+        err_map=err_map, fix_map=fix_map, vin_context=vin_context) }}
+
+{# === 6. Odometru initial — reveal dinamic server cand chips contin R-ODO/I-ODO (D10c) ===
+   has_r_odo=True (server-computed din lista de chips): sectiune vizibila cu marcaj warn.
+   has_r_odo=False: hint discret, campul optional si vizual neutru. #}
+{% if has_r_odo %}
+<div class="odo-initial-warn"
+     style="border-left:2px solid var(--warn);padding-left:10px;margin-left:-2px;">
+  <div class="camp-slim">
+    <label for="c-odometru_initial" style="color:var(--warn);">
+      Odometru initial (km) · necesar pentru R-ODO
+    </label>
+    <input id="c-odometru_initial" type="text" name="odometru_initial"
+           value="{{ form_odo_initial or '' }}"
+           class="camp-mono"
+           required
+           aria-required="true"
+           style="border-color:color-mix(in srgb,var(--warn) 50%,var(--line));{% if err_map.get('odometru_initial') %}border-color:var(--err);{% endif %}"
+           aria-label="Odometru initial (VIN: {{ vin_context or '' }}) — necesar pentru R-ODO"
+           {% if err_map.get('odometru_initial') %}aria-invalid="true"{% endif %}>
+    {% if err_map.get('odometru_initial') %}
+    <div class="s-error" style="font-size:12px;margin-top:2px;">{{ err_map.get('odometru_initial') }}</div>
+    {% endif %}
+  </div>
+</div>
+{% else %}
+{# Hint discret cand nu e necesar #}
+<div class="camp-slim">
+  <label for="c-odometru_initial" style="color:var(--muted);">Odometru initial (km)</label>
+  <input id="c-odometru_initial" type="text" name="odometru_initial"
+         value="{{ form_odo_initial or '' }}"
+         class="camp-mono"
+         style="{% if err_map.get('odometru_initial') %}border-color:var(--err);{% endif %}"
+         aria-label="Odometru initial (optional){% if vin_context %} (VIN: {{ vin_context }}){% endif %}"
+         {% if err_map.get('odometru_initial') %}aria-invalid="true"{% endif %}>
+  {% if err_map.get('odometru_initial') %}
+  <div class="s-error" style="font-size:12px;margin-top:2px;">{{ err_map.get('odometru_initial') }}</div>
+  {% endif %}
+  <span style="font-size:10px;color:var(--muted);font-style:italic;">
+    Odometru initial se cere doar pentru coduri R-ODO / I-ODO.
+  </span>
+</div>
+{% endif %}
+
+{# === 7. Buton primar parametrizat ===
    with_cancel=True (modal editare preview): Salveaza + Anuleaza pe ACELASI rand,
    sistemul .act (desktop = text alaturat; mobil = doua iconite Lucide 44px alaturate).
    Implicit (ex. _trimitere_detaliu): un singur buton text, neschimbat. #}