Refactor: Remove deprecated gRPC service files and implement new API structure

- Deleted old gRPC service definitions in `game_grpc.pb.go` and `public.go`.
- Added new API server implementations for objectstory, player, and shop services.
- Introduced configuration files for new APIs in `etc/*.yaml`.
- Created main entry points for each service in `objectstory.go`, `player.go`, and `shop.go`.
- Removed unused user update handler and user API files.
- Added utility functions for context management and HTTP header parsing.
- Introduced PostgreSQL backup configuration in `backup/postgreSql.yaml`.

backup/postgreSql.yaml

@@ -0,0 +1,22 @@
+apiVersion: postgresql.cnpg.io/v1
+kind: Cluster
+metadata:
+  namespace: juwan
+  name: cluster-example
+spec:
+  instances: 3
+  backup:
+    barmanObjectStore:
+      destinationPath: s3://juwan-dev-pg-backups-zj/pg-data/
+      endpointURL: https://cn-nb1.rains3.com
+      s3Credentials:
+        accessKeyId:
+          name: rc-creds
+          key: ACCESS_KEY_ID
+        secretAccessKey:
+          name: rc-creds
+          key: SECRET_ACCESS_KEY
+      wal:
+        compression: gzip
+  storage:
+    size: 1Gi