docs(readme): 重写项目文档，更新技术栈与功能说明

feat(character): 新增人设详情接口并优化获取逻辑

src/main/java/com/yolo/keyborad/config/SaTokenConfigure.java

@@ -73,6 +73,7 @@ public class SaTokenConfigure implements WebMvcConfigurer {
                 "/character/listByUser",
                 "/user/detail",
                 "/user/register",
+                "/user/updateInfo",
                 "/character/updateUserCharacterSort",
                 "/character/delUserCharacter",
                 "/user/sendVerifyMail",

src/main/java/com/yolo/keyborad/controller/CharacterController.java

@@ -49,8 +49,7 @@ public class CharacterController {
     @GetMapping("/detail")
     @Operation(summary = "人设详情", description = "人设详情接口")
     public BaseResponse<KeyboardCharacterRespVO> detail(@RequestParam("id") Long id) {
-        KeyboardCharacter character = characterService.getById(id);
-        return ResultUtils.success(BeanUtil.copyProperties(character, KeyboardCharacterRespVO.class));
+        return ResultUtils.success(characterService.getDetailById(id));
     }
 
     @GetMapping("/listByTag")

src/main/java/com/yolo/keyborad/service/KeyboardCharacterService.java

@@ -35,4 +35,6 @@ public interface KeyboardCharacterService extends IService<KeyboardCharacter>{
     List<KeyboardCharacterRespVO> selectListByTagWithNotLogin(Long tagId);
 
     void addDefaultUserCharacter(Long userId);
+
+    KeyboardCharacterRespVO getDetailById(Long id);
 }

src/main/java/com/yolo/keyborad/service/impl/KeyboardCharacterServiceImpl.java

@@ -288,4 +288,22 @@ public class KeyboardCharacterServiceImpl extends ServiceImpl<KeyboardCharacterM
             this.addUserCharacter(keyboardUserCharacterAddDTO, userId);
         });
     }
+
+    @Override
+    public KeyboardCharacterRespVO getDetailById(Long id) {
+        // 根据ID获取人设信息，优先从缓存获取
+        KeyboardCharacter character = this.getById(id);
+        // 将实体对象转换为响应对象
+        KeyboardCharacterRespVO respVO = BeanUtil.copyProperties(character, KeyboardCharacterRespVO.class);
+        // 判断当前用户是否已添加该人设
+        long userId = StpUtil.getLoginIdAsLong();
+        // 查询用户人设关联表，判断当前用户是否已添加该人设
+        KeyboardUserCharacter userCharacter = keyboardUserCharacterMapper.selectOne(
+                new LambdaQueryWrapper<KeyboardUserCharacter>()
+                        .eq(KeyboardUserCharacter::getCharacterId, id)
+                        .eq(KeyboardUserCharacter::getUserId, userId));
+        // 设置是否已添加的标记
+        respVO.setAdded(userCharacter != null);
+        return respVO;
+    }
 }