feat: problems local stats, user status, admin panel enhancements, rating text

- Problems page: replace Luogu pass rate with local submission stats
  (local_submit_count, local_ac_count)
- Problems page: add user AC/fail status column (user_ac, user_fail_count)
- Admin users: add total_submissions and total_ac columns
- Admin users: add detail panel with submissions/rating/redeem tabs
- Admin: new endpoint GET /api/v1/admin/users/{id}/rating-history
- Rating history: note field includes problem title via JOIN
- Me page: translate task codes to friendly labels with icons
- Me page: problem links in rating history are clickable
- Wrong book service, learning note scoring, note image controller
- Backend SQL uses batch queries for performance

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

backend/CMakeLists.txt

@@ -28,6 +28,7 @@ add_library(csp_core
   src/services/kb_import_runner.cc
   src/services/problem_gen_runner.cc
   src/services/submission_feedback_service.cc
+  src/services/learning_note_scoring_service.cc
   src/services/submission_feedback_runner.cc
   src/services/import_service.cc
   src/services/import_runner.cc
@@ -50,6 +51,7 @@ add_library(csp_web
   src/controllers/problem_controller.cc
   src/controllers/submission_controller.cc
   src/controllers/me_controller.cc
+  src/controllers/note_image_controller.cc
   src/controllers/contest_controller.cc
   src/controllers/leaderboard_controller.cc
   src/controllers/admin_controller.cc