Implement house points system: Add houseJoinPoints, houseLeavePoints, and houseCreatePoints to SitePreferences model and update related services. Enhance house management features to award and deduct points for house creation, membership removal, and leaving a house. Update environment configuration for PostgreSQL and adjust UI components to reflect new functionalities.

prisma/schema.prisma

@@ -109,6 +109,9 @@ model SitePreferences {
   challengesBackground  String?
   eventRegistrationPoints Int    @default(100)
   eventFeedbackPoints  Int      @default(100)
+  houseJoinPoints      Int      @default(100)
+  houseLeavePoints     Int      @default(100)
+  houseCreatePoints    Int      @default(100)
   createdAt             DateTime @default(now())
   updatedAt             DateTime @updatedAt
 }