No LaTeX/markdown anywhere students read (seed, import, DB migration 0021, tutor history, frontend guard); quiz of an island is fixed per user again

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
This commit is contained in:
2026-10-12 12:15:28 +03:30
parent dd10ff83f4
commit e662914efc
11 changed files with 855 additions and 670 deletions

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