Refactor configuration management by migrating to a modular config system

- Removed the old `infra.Config` structure and replaced it with a new modular configuration system in `pkg/config`.
- Introduced a `Config` struct in `cmd/web/config.go` to hold command-specific configurations.
- Updated configuration loading functions to utilize the new `LoadConfig` method with generics for type safety.
- Adjusted various initialization functions in `cmd/web/bootstrap.go` and `cmd/web/main.go` to reflect the new configuration structure.
- Cleaned up the `config.yaml` by removing obsolete fields and ensuring it aligns with the new configuration schema.

cmd/web/main.go

@@ -80,8 +80,8 @@ func main() {
 	}()
 
 	// Initialize authorization service
-	userAuthService := initAuthorizationService(conf.UserAuthorization.JWT, redisClient, logger)
-	customerAuthService := initAuthorizationService(conf.CustomerAuthorization.JWT, redisClient, logger)
+	userAuthService := initAuthorizationService(conf.UserAuth.JWT, redisClient, logger)
+	customerAuthService := initAuthorizationService(conf.CustomerAuth.JWT, redisClient, logger)
 
 	// Initialize repositories with MongoDB connection manager
 	userRepository := user.NewUserRepository(mongoManager, logger)