feat: add multi-city representation support and domain context resolution

- Created migration to add representation_cities table and domain, is_global fields to representations.
- Implemented SiteContextController to resolve domain to site context (city | representation | unknown).
- Developed DomainContext and DomainContextResolver services for domain mapping.
- Added tests for DomainContextResolver and commission logic based on domain ownership.

graphify-out/.graphify_labels.json

@@ -703,24 +703,38 @@
   "701": "Community 701",
   "702": "Community 702",
   "703": "Community 703",
+  "704": "Community 704",
   "705": "Community 705",
   "706": "Community 706",
   "707": "Community 707",
   "708": "Community 708",
   "709": "Community 709",
   "710": "Community 710",
+  "711": "Community 711",
   "712": "Community 712",
+  "713": "Community 713",
+  "714": "Community 714",
   "715": "Community 715",
   "716": "Community 716",
   "717": "Community 717",
   "718": "Community 718",
   "719": "Community 719",
   "720": "Community 720",
+  "721": "Community 721",
   "722": "Community 722",
+  "723": "Community 723",
+  "724": "Community 724",
   "725": "Community 725",
   "726": "Community 726",
   "727": "Community 727",
+  "728": "Community 728",
   "729": "Community 729",
+  "730": "Community 730",
+  "731": "Community 731",
+  "732": "Community 732",
+  "733": "Community 733",
+  "734": "Community 734",
+  "735": "Community 735",
   "736": "Community 736",
   "738": "Community 738"
 }