forked from wangziqi/gongxue-base
P2-12 Teacher Management: - Add profile JSON field (subjects, joinedAt, qualifications) to User entity - Add GET/PUT /rbac/users/:id/profile endpoints with UpdateProfileDto - Add GET /rbac/teacher-workspace endpoint returning assignedClasses, todaySchedules, and myStudents - Create /teacher-workspace page with tabs (My Classes, Today's Schedule, My Students) - Add route with PermissionRoute and menu item in MainLayout P2-13 Student Archive Multi-class: - Add GET /students/:id/compare-classes endpoint returning side-by-side enrollment data with per-class attendance statistics - Students module now includes ClassStudent and AttendanceRecord entities - No 2-enrollment cap existed in the codebase; student enrollments already return all records via class-student table