fix(cpp): correct distanceEqual two-point nesting to match Appwrite backend format

Author: bhardwajparth51

examples/cpp/include/appwrite/core.hpp

@@ -258,10 +258,10 @@ class Query {
         return internal::build("distanceEqual", attribute, {"[" + internal::point(lat, lon) + "," + internal::dbl_str(distance) + ",true]"});
     }
     static std::string distanceEqual(std::string_view attribute, double lat1, double lon1, double lat2, double lon2, double distance) {
+        // values:[[[[p1],[p2]],distance,true]] — points nested inside an extra array
         return internal::build("distanceEqual", attribute, {
-            "[" + internal::point(lat1, lon1) + "," + internal::point(lat2, lon2) + "]",
-            internal::dbl_str(distance),
-            "true"
+            "[[" + internal::point(lat1, lon1) + "," + internal::point(lat2, lon2) + "]," + 
+            internal::dbl_str(distance) + ",true]"
         });
     }
     static std::string distanceNotEqual(std::string_view attribute, double lat, double lon, double distance) {

templates/cpp/include/core.hpp.twig

@@ -258,10 +258,10 @@ public:
         return internal::build("distanceEqual", attribute, {"[" + internal::point(lat, lon) + "," + internal::dbl_str(distance) + ",true]"});
     }
     static std::string distanceEqual(std::string_view attribute, double lat1, double lon1, double lat2, double lon2, double distance) {
+        // values:[[[[p1],[p2]],distance,true]] — points nested inside an extra array
         return internal::build("distanceEqual", attribute, {
-            "[" + internal::point(lat1, lon1) + "," + internal::point(lat2, lon2) + "]",
-            internal::dbl_str(distance),
-            "true"
+            "[[" + internal::point(lat1, lon1) + "," + internal::point(lat2, lon2) + "]," + 
+            internal::dbl_str(distance) + ",true]"
         });
     }
     static std::string distanceNotEqual(std::string_view attribute, double lat, double lon, double distance) {