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`.

app/game/rpc/internal/models/runtime/runtime.go

@@ -0,0 +1,10 @@
+// Code generated by ent, DO NOT EDIT.
+
+package runtime
+
+// The schema-stitching logic is generated in juwan-backend/app/game/rpc/internal/models/runtime.go
+
+const (
+	Version = "v0.14.5"                                         // Version of ent codegen.
+	Sum     = "h1:Rj2WOYJtCkWyFo6a+5wB3EfBRP0rnx1fMk6gGA0UUe4=" // Sum of ent codegen.
+)