Talal Sharabi fa538a1f12 Fix remaining controller serialization and model mismatches ...

- Replace all _serialize_group/exam/assignment/stat/session calls with _serialize
- Fix sessions controller to use exam_data JSON field instead of nonexistent columns
- Fix stats controller to use correct model fields (score_correct/total/missing, solutions)

Made-with: Cursor

2026-03-15 01:12:17 +04:00

4.5 KiB

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