feat: plan limits, café location, nearby API, Iran map section

• PlanLimits: add MaxMenuCategories (Free→3), MaxMenuItems (Free→30),
  CanAccessCrm and CanAccessStatistics (Pro+ only)
• MenuController: enforce category/item limits before create (403 + PLAN_LIMIT_REACHED)
• Cafe entity + EF migration: Latitude/Longitude (double?, nullable)
• CafeSettingsController: PATCH accepts lat/lng with range validation
• PublicController: GET /api/public/map-markers (marketing SVG map feed)
  and GET /api/public/nearby (Koja nearby-cafés with Haversine sort)
• Dashboard settings: location card with OSM iframe preview + Neshan link
• Website homepage: IranMapSection — stylised SVG silhouette with
  SMIL-animated blinking dots at real café coordinates

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

src/Meezi.API/Models/Cafes/CafeSettingsDtos.cs

@@ -15,7 +15,9 @@ public record CafeSettingsDto(
     DateTime? PlanExpiresAt,
     CafeThemeDto Theme,
     decimal DefaultTaxRate,
-    bool AllowBranchTaxOverride);
+    bool AllowBranchTaxOverride,
+    double? Latitude,
+    double? Longitude);
 
 public record PatchCafeSettingsRequest(
     string? Name,
@@ -30,4 +32,10 @@ public record PatchCafeSettingsRequest(
     string? SnappfoodVendorId,
     CafeThemeDto? Theme,
     decimal? DefaultTaxRate,
-    bool? AllowBranchTaxOverride);
+    bool? AllowBranchTaxOverride,
+    /// <summary>WGS-84 latitude. Send null to clear.</summary>
+    double? Latitude,
+    /// <summary>WGS-84 longitude. Send null to clear.</summary>
+    double? Longitude,
+    /// <summary>When true, Latitude and Longitude are explicitly being cleared (set to null).</summary>
+    bool ClearLocation = false);