feat: 添加用户管理模块 + username/email 唯一约束

- 新增 UserController，实现完整的用户 CRUD 接口
- 扩展 SysUserService 接口和实现类
- 为 sys_user 表添加 username 和 email 唯一约束
- 添加 phone、role_type、status 索引优化查询性能
- 修复 Result 类方法名（failed -> error）

相关接口：
- GET /api/users - 获取用户列表（分页）
- GET /api/users/:id - 获取用户详情
- POST /api/users - 创建用户
- PUT /api/users/:id - 更新用户
- DELETE /api/users/:id - 删除用户
- GET /api/users/teachers - 获取教师列表
- POST /api/users/change-password - 修改密码
- PUT /api/users/profile - 更新个人资料

backend/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst

@@ -1,10 +1,16 @@
 com/innovation/platform/service/impl/SysUserServiceImpl.class
+com/innovation/platform/service/ProjectService.class
 com/innovation/platform/common/Result.class
+com/innovation/platform/dto/ProjectQueryRequest.class
+com/innovation/platform/controller/UserController$PageResult.class
+com/innovation/platform/controller/ProjectController.class
 com/innovation/platform/dto/LoginResponse$LoginResponseBuilder.class
 com/innovation/platform/entity/StuInfo.class
 com/innovation/platform/dto/RegisterRequest.class
 com/innovation/platform/dto/LoginResponse.class
 com/innovation/platform/entity/BaseEntity.class
+com/innovation/platform/controller/UserController$UpdateUserRequest.class
+com/innovation/platform/dto/ProjectResponse.class
 com/innovation/platform/InnovationPlatformApplication.class
 com/innovation/platform/entity/ProjectMember.class
 com/innovation/platform/entity/ReviewScoreItem.class
@@ -15,12 +21,19 @@ com/innovation/platform/entity/ProjectAttachment.class
 com/innovation/platform/entity/SysUser.class
 com/innovation/platform/entity/Review.class
 com/innovation/platform/dto/LoginRequest.class
+com/innovation/platform/controller/UserController$UpdateProfileRequest.class
+com/innovation/platform/controller/UserController.class
 com/innovation/platform/exception/GlobalExceptionHandler.class
 com/innovation/platform/mapper/SysUserMapper.class
 com/innovation/platform/entity/TeacherInfo.class
+com/innovation/platform/dto/ProjectResponse$ProjectResponseBuilder.class
 com/innovation/platform/entity/SysLog.class
+com/innovation/platform/mapper/ProjectMapper.class
+com/innovation/platform/dto/ProjectRequest.class
+com/innovation/platform/controller/UserController$CreateUserRequest.class
 com/innovation/platform/entity/Project.class
 com/innovation/platform/config/SaTokenConfig.class
 com/innovation/platform/entity/SysConfig.class
+com/innovation/platform/service/impl/ProjectServiceImpl.class
 com/innovation/platform/entity/AchievementAttachment.class
 com/innovation/platform/entity/Achievement.class

backend/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst

@@ -3,13 +3,20 @@
 /home/llm/projects/innovation-platform/backend/src/main/java/com/innovation/platform/entity/SysConfig.java
 /home/llm/projects/innovation-platform/backend/src/main/java/com/innovation/platform/InnovationPlatformApplication.java
 /home/llm/projects/innovation-platform/backend/src/main/java/com/innovation/platform/mapper/SysUserMapper.java
+/home/llm/projects/innovation-platform/backend/src/main/java/com/innovation/platform/service/impl/ProjectServiceImpl.java
 /home/llm/projects/innovation-platform/backend/src/main/java/com/innovation/platform/dto/RegisterRequest.java
 /home/llm/projects/innovation-platform/backend/src/main/java/com/innovation/platform/entity/SysLog.java
+/home/llm/projects/innovation-platform/backend/src/main/java/com/innovation/platform/dto/ProjectQueryRequest.java
 /home/llm/projects/innovation-platform/backend/src/main/java/com/innovation/platform/exception/GlobalExceptionHandler.java
 /home/llm/projects/innovation-platform/backend/src/main/java/com/innovation/platform/service/SysUserService.java
+/home/llm/projects/innovation-platform/backend/src/main/java/com/innovation/platform/service/ProjectService.java
 /home/llm/projects/innovation-platform/backend/src/main/java/com/innovation/platform/entity/BaseEntity.java
 /home/llm/projects/innovation-platform/backend/src/main/java/com/innovation/platform/controller/AuthController.java
+/home/llm/projects/innovation-platform/backend/src/main/java/com/innovation/platform/controller/ProjectController.java
+/home/llm/projects/innovation-platform/backend/src/main/java/com/innovation/platform/dto/ProjectRequest.java
 /home/llm/projects/innovation-platform/backend/src/main/java/com/innovation/platform/common/Result.java
+/home/llm/projects/innovation-platform/backend/src/main/java/com/innovation/platform/dto/ProjectResponse.java
+/home/llm/projects/innovation-platform/backend/src/main/java/com/innovation/platform/mapper/ProjectMapper.java
 /home/llm/projects/innovation-platform/backend/src/main/java/com/innovation/platform/entity/ProjectMember.java
 /home/llm/projects/innovation-platform/backend/src/main/java/com/innovation/platform/dto/LoginResponse.java
 /home/llm/projects/innovation-platform/backend/src/main/java/com/innovation/platform/service/impl/SysUserServiceImpl.java
@@ -21,5 +28,6 @@
 /home/llm/projects/innovation-platform/backend/src/main/java/com/innovation/platform/entity/Review.java
 /home/llm/projects/innovation-platform/backend/src/main/java/com/innovation/platform/entity/Achievement.java
 /home/llm/projects/innovation-platform/backend/src/main/java/com/innovation/platform/entity/ProjectAttachment.java
+/home/llm/projects/innovation-platform/backend/src/main/java/com/innovation/platform/controller/UserController.java
 /home/llm/projects/innovation-platform/backend/src/main/java/com/innovation/platform/entity/SysUser.java
 /home/llm/projects/innovation-platform/backend/src/main/java/com/innovation/platform/entity/TeacherInfo.java