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`.

desc/api/chat.api

@@ -50,7 +50,7 @@ type (
     prefix: api/v1/chat
     group: chat
 )
-service juwan-api {
+service chat-api {
     @doc "获取会话列表"
     @handler ListSessions
     get /sessions (PageReq) returns (ChatSessionListResp)