fix(address): normalize SECTORUL + etaj in addr_match, fix Oracle duplicate addrs

- _addr_match / addrMatch: add SECTORUL\s*\d* branch to strip sector
  number; add (?:\b|(?=\d)) to catch glued keywords (sc1, ap94);
  include etaj field in rStreet concat
- database.py: replace duplicate addr_match impl with import from sync_service
- import_service.py: short-circuit billing addr Oracle call when
  billing == shipping (avoids duplicate address creation)
- PL/SQL: normalize MUNICIPIUL BUCURESTI → BUCURESTI SECTORUL X before
  TIER 1; resolve id_localitate before search; TIER 1 now matches on
  id_loc instead of text locality
- Add scripts/cleanup_duplicate_addresses.sql for manual prod cleanup
- Add 5 new tests: sectorul, keyword+digit gluing, etaj, short-circuit

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

api/app/services/sync_service.py

@@ -31,8 +31,9 @@ def _addr_match(gomag_json, roa_json):
     except (json.JSONDecodeError, TypeError):
         return True
     _ADDR_WORDS = re.compile(
-        r'\b(STR|STRADA|NR|NUMAR|NUMARUL|BL|BLOC|SC|SCARA|AP|APART|APARTAMENT|'
-        r'ET|ETAJ|COM|COMUNA|SAT|MUN|MUNICIPIUL|JUD|JUDETUL|CARTIER|PARTER|SECTOR|ORAS)\b'
+        r'\bSECTORUL\s*\d*'
+        r'|\b(STR|STRADA|NR|NUMAR|NUMARUL|BL|BLOC|SC|SCARA|AP|APART|APARTAMENT|'
+        r'ET|ETAJ|COM|COMUNA|SAT|MUN|MUNICIPIUL|JUD|JUDETUL|CARTIER|PARTER|SECTOR|SECTORUL|ORAS)(?:\b|(?=\d))'
     )
     def norm(s):
         s = unicodedata.normalize('NFD', s or '')
@@ -40,7 +41,7 @@ def _addr_match(gomag_json, roa_json):
         s = _ADDR_WORDS.sub('', s)
         return re.sub(r'[^A-Z0-9]', '', s)
     g_street = norm(g.get('address') or g.get('strada') or '')
-    r_street = norm((r.get('strada') or '') + (r.get('numar') or '') + (r.get('bloc') or '') + (r.get('scara') or '') + (r.get('apart') or ''))
+    r_street = norm((r.get('strada') or '') + (r.get('numar') or '') + (r.get('bloc') or '') + (r.get('scara') or '') + (r.get('apart') or '') + (r.get('etaj') or ''))
     g_city = norm(g.get('city') or g.get('localitate') or '')
     r_city = norm(r.get('localitate') or '')
     g_region = norm(g.get('region') or g.get('judet') or '')