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/Controllers/CafeSettingsController.cs

@@ -87,6 +87,21 @@ public class CafeSettingsController : CafeApiControllerBase
         if (request.AllowBranchTaxOverride is bool allowTax)
             cafe.AllowBranchTaxOverride = allowTax;
 
+        // Location: explicit null-clear flag OR new values
+        if (request.ClearLocation)
+        {
+            cafe.Latitude = null;
+            cafe.Longitude = null;
+        }
+        else if (request.Latitude.HasValue && request.Longitude.HasValue)
+        {
+            if (request.Latitude is < -90 or > 90 || request.Longitude is < -180 or > 180)
+                return BadRequest(new ApiResponse<object>(false, null,
+                    new ApiError("INVALID_LOCATION", "Latitude must be −90…90 and longitude −180…180.")));
+            cafe.Latitude = request.Latitude;
+            cafe.Longitude = request.Longitude;
+        }
+
         await _db.SaveChangesAsync(ct);
         return Ok(new ApiResponse<CafeSettingsDto>(true, ToDto(cafe)));
     }
@@ -106,5 +121,7 @@ public class CafeSettingsController : CafeApiControllerBase
         cafe.PlanExpiresAt,
         CafeThemeMapping.FromJson(cafe.ThemeJson),
         cafe.DefaultTaxRate,
-        cafe.AllowBranchTaxOverride);
+        cafe.AllowBranchTaxOverride,
+        cafe.Latitude,
+        cafe.Longitude);
 }