feat: complete IAM frontend pages with full functionality

[ReLive27]

Frontend (web):

• User Management: complete CRUD, advanced search, batch operations, status toggle
• User Group: group management with member transfer functionality
• Role Management: role assignment with permission tree
• API Resources: API resource CRUD with HTTP method tags
• General Resources: menu/button resource tree management
• Attack Protection: IP blacklisting, geo-blocking, captcha settings
• MFA: multi-factor authentication configuration (TOTP, SMS, Email)
• Security Policy: login session and audit settings
• Password Policy: password strength rules with testing
• Social Identity: OAuth2 provider management (WeChat, Weibo, GitHub, etc.)
• Enterprise Identity: LDAP/AD/OIDC/SAML source list with connection status
• Create Enterprise Source: 4-step wizard with type selection, configuration, attribute mapping
• App Detail: protocol config (OAuth2/OIDC/SAML), API authorization, role assignment tabs

Backend (server/repository):

• Add REST controllers for user, role, API resources, audit log, dashboard
• Add DTOs and VO models for user and user group operations
• Refactor repository structure: move to dao/internal/logic packages
• Rename GroupEntity to UserGroupEntity, GroupRepository to UserGroupRepository
• Update MyBatis mappers for new package structure
• Update database schema migration