feat: add geolocation fields to session and implement geo stats endpoint

- Added country, city, countryCode, latitude, and longitude fields to the Session model.
- Updated geoip service to fetch and store geolocation data based on user IP.
- Created a new admin endpoint to retrieve geolocation statistics, including user counts by country and city.
- Enhanced admin page to display geolocation statistics with expandable city details.
- Introduced caching for geolocation data to optimize performance.

apps/backend/src/generated/prisma/internal/prismaNamespace.ts

@@ -1668,6 +1668,11 @@ export const SessionScalarFieldEnum = {
   updatedAt: 'updatedAt',
   ipAddress: 'ipAddress',
   userAgent: 'userAgent',
+  country: 'country',
+  city: 'city',
+  countryCode: 'countryCode',
+  latitude: 'latitude',
+  longitude: 'longitude',
   userId: 'userId'
 } as const
 
@@ -1960,6 +1965,20 @@ export type ListDateTimeFieldRefInput<$PrismaModel> = FieldRefInputType<$PrismaM
     
 
 
+/**
+ * Reference to a field of type 'Float'
+ */
+export type FloatFieldRefInput<$PrismaModel> = FieldRefInputType<$PrismaModel, 'Float'>
+    
+
+
+/**
+ * Reference to a field of type 'Float[]'
+ */
+export type ListFloatFieldRefInput<$PrismaModel> = FieldRefInputType<$PrismaModel, 'Float[]'>
+    
+
+
 /**
  * Reference to a field of type 'ComplexUserRole'
  */
@@ -2043,20 +2062,6 @@ export type JsonFieldRefInput<$PrismaModel> = FieldRefInputType<$PrismaModel, 'J
 export type EnumQueryModeFieldRefInput<$PrismaModel> = FieldRefInputType<$PrismaModel, 'QueryMode'>
     
 
-
-/**
- * Reference to a field of type 'Float'
- */
-export type FloatFieldRefInput<$PrismaModel> = FieldRefInputType<$PrismaModel, 'Float'>
-    
-
-
-/**
- * Reference to a field of type 'Float[]'
- */
-export type ListFloatFieldRefInput<$PrismaModel> = FieldRefInputType<$PrismaModel, 'Float[]'>
-    
-
 /**
  * Batch Payload for updateMany & deleteMany & createMany
  */