feat(auth): Implement Google OAuth 2.0 integration with user creation and JWT generation

- Added Google OAuth controller and service to handle authentication via Google.
- Introduced DTOs for Google user and token responses.
- Updated AuthService and UsersService traits to support new Google OAuth functionality.
- Implemented logic to create a new user if they do not exist in the system after Google authentication.
- Enhanced existing user retrieval and JWT generation upon successful login.
- Added tests for Google OAuth flow, including login redirection and callback handling for both new and existing users.
- Updated environment configuration to include Google OAuth credentials.

imphnen-iam/src/v1/auth/mod.rs

@@ -5,6 +5,7 @@ pub mod auth_dto;
 pub mod auth_repository;
 pub mod auth_schema;
 pub mod auth_service;
+pub mod google;
 
 pub use auth_dto::*;
 pub use auth_repository::*;
@@ -13,6 +14,7 @@ pub use auth_service::*;
 
 pub fn auth_router() -> Router {
 	Router::new()
+        .nest("/google", google::google_oauth_controller::GoogleOauthController::new().get_routes())
 		.route("/forgot", post(auth_controller::post_forgot_password))
 		.route("/login", post(auth_controller::post_login))
 		.route("/login-mentor", post(auth_controller::post_login_mentor))