- update: major refactor of the database-service to make it easy to add newer api services

- add: character database api

proto/character_db_api.proto

@@ -0,0 +1,43 @@
+syntax = "proto3";
+
+package character_db_api;
+
+service CharacterService {
+    rpc GetCharacter (CharacterRequest) returns (CharacterResponse);
+    rpc CreateCharacter (CreateCharacterRequest) returns (CharacterResponse);
+    rpc DeleteCharacter (DeleteCharacterRequest) returns (Empty);
+}
+
+message CharacterRequest {
+    int32 character_id = 1;
+}
+
+message CreateCharacterRequest {
+    int32 user_id = 1;
+    string name = 2;
+    string inventory = 3; // JSON serialized
+    string stats = 4;     // JSON serialized
+    string looks = 5;     // JSON serialized
+    string position = 6;  // JSON serialized
+}
+
+message DeleteCharacterRequest {
+    int32 character_id = 1;
+}
+
+message CharacterResponse {
+    int32 id = 1;
+    int32 user_id = 2;
+    string name = 3;
+    int32 level = 4;
+    int64 experience = 5;
+    string inventory = 6;
+    string stats = 7;
+    string looks = 8;
+    string position = 9;
+    string created_at = 10;
+    string updated_at = 11;
+    bool is_active = 12;
+}
+
+message Empty {}