feat(anaf-dedup): ANAF partner dedup + address fix + UI enrichment

Prevent partner duplicates via ANAF CUI verification and dual PL/SQL
search. Fix address matching with street-level comparison and diacritics
normalization. Show partner/address comparison in order detail modal.

- New anaf_service.py: batch ANAF API client with chunking, retry, cache
- PL/SQL: dual CUI search (bare/RO+bare/RO space+bare), 3-tier address
  search (street+city+id_loc → city+id_loc → create), strip_diacritics
  at storage for addresses and partner names
- SQLite: anaf_cache table, 12 new order columns for partner/address data
- import_service: cod_fiscal_override param, return partner/address from Oracle
- sync_service: ANAF batch integration, denomination mismatch detection,
  cache pre-population trigger
- Router: enriched order_detail with partner_info + addresses JSON
- UI: collapsible Detalii Partener + Adrese Comparativ sections in modal,
  auto-expand on mismatch, ANAF badges, mobile address cards
- Dashboard: address quality attention indicator
- New scan_duplicate_partners.py script for one-time duplicate audit

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

api/app/static/css/style.css

@@ -1095,3 +1095,93 @@ tr.mapping-deleted td {
     color: var(--info);
     text-decoration: underline;
 }
+
+/* ── Partner/Address section headers (ANAF dedup) ── */
+.detail-section-header {
+    font-family: var(--font-display);
+    font-size: 12px;
+    font-weight: 500;
+    text-transform: uppercase;
+    letter-spacing: 0.04em;
+    color: var(--text-secondary);
+    padding: 10px 0;
+    border-bottom: 1px solid var(--border);
+    cursor: pointer;
+    display: flex;
+    align-items: center;
+    gap: 8px;
+}
+.detail-section-header:hover { color: var(--text-primary); }
+.detail-section-header .bi-chevron-right {
+    transition: transform 150ms ease-out;
+    font-size: 10px;
+}
+.detail-section-header[aria-expanded="true"] .bi-chevron-right {
+    transform: rotate(90deg);
+}
+.detail-section-header .alert-count {
+    font-family: var(--font-body);
+    font-size: 11px;
+    font-weight: 500;
+    background: var(--error-light);
+    color: var(--error-text);
+    padding: 2px 8px;
+    border-radius: 9999px;
+    margin-left: auto;
+}
+.detail-section-body { padding: 12px 0; }
+.partner-row { display: flex; gap: 24px; flex-wrap: wrap; margin-bottom: 8px; }
+.partner-field { min-width: 140px; }
+.partner-label {
+    font-family: var(--font-display);
+    font-size: 12px;
+    font-weight: 500;
+    color: var(--text-muted);
+    text-transform: uppercase;
+}
+.partner-value {
+    font-family: var(--font-data);
+    font-size: 13px;
+    color: var(--text-primary);
+}
+.anaf-badge {
+    display: inline-block;
+    font-family: var(--font-body);
+    font-size: 12px;
+    font-weight: 500;
+    padding: 2px 8px;
+    border-radius: 9999px;
+}
+.anaf-badge-ok { background: var(--success-light); color: var(--success-text); }
+.anaf-badge-warn { background: var(--warning-light); color: var(--warning-text); }
+.anaf-badge-gray { background: var(--cancelled-light); color: var(--text-muted); }
+.addr-table { width: 100%; border-collapse: collapse; font-size: 13px; }
+.addr-table th {
+    font-family: var(--font-display);
+    font-size: 12px;
+    font-weight: 500;
+    text-transform: uppercase;
+    color: var(--text-muted);
+    padding: 6px 8px;
+    text-align: left;
+}
+.addr-table td { padding: 8px; vertical-align: top; font-family: var(--font-body); }
+.addr-mismatch { background: var(--warning-light) !important; }
+.addr-efactura-risk { background: var(--error-light) !important; }
+.addr-label {
+    font-family: var(--font-display);
+    font-size: 11px;
+    font-weight: 500;
+    text-transform: uppercase;
+    color: var(--text-secondary);
+    margin-bottom: 4px;
+}
+/* Mobile address cards */
+.addr-card { border: 1px solid var(--border); border-radius: var(--card-radius); margin-bottom: 8px; overflow: hidden; }
+.addr-card-header { padding: 6px 10px; font-family: var(--font-display); font-size: 11px; font-weight: 500; text-transform: uppercase; color: var(--text-secondary); background: var(--surface-raised); }
+.addr-card-row { padding: 8px 10px; }
+.addr-card-row + .addr-card-row { border-top: 1px dashed var(--border-subtle); }
+.addr-card-source { font-size: 11px; font-weight: 500; color: var(--text-muted); margin-bottom: 2px; }
+.addr-card-text { font-family: var(--font-body); font-size: 13px; }
+.addr-card.mismatch { border-left: 3px solid var(--warning); }
+.addr-card.match .addr-match-label { font-size: 11px; color: var(--success-text); }