feat: integrate all frontend modules and premium UI

backend/src/main/resources/application.properties

@@ -1,7 +1,11 @@
 # ─── DATABASE CONNECTION CONFIGURATION ───
 spring.datasource.url=jdbc:postgresql://localhost:5432/rit_freshers_hub?sslmode=disable
 spring.datasource.username=postgres
+<<<<<<< Updated upstream
 spring.datasource.password=your_local_postgres_password_here
+=======
+spring.datasource.password=${DB_PASSWORD:Amudiesh22@.}
+>>>>>>> Stashed changes
 
 # ─── JPA / HIBERNATE SETTINGS ───
 spring.jpa.database-platform=org.hibernate.dialect.PostgreSQLDialect