- rename ambiguous loop var, merge nested if (E741, SIM102)
- use tempfile.gettempdir() for debug dump (S108)
- drop unused total_lessons assignment (F841)
- fix parser: capture tr attrs via finditer, strip HTML comments before
cell parse (was leaving '-->' in subject names)
- store class choice in redis: user:{id}:schedule_class (private) and
chat:{id}:schedule_class (groups, admin-only via /setclass)
- /schedule renders day for stored class, /setclass sets it directly
- drop teacher emoji, format grade as "N клас"
- S113: Add timeout=10 to all requests calls (74 fixes)
- E722: Replace bare except: with except Exception:
- B904: Replace redundant re-raise with bare raise
- E402: Add noqa for intentional late imports after import_library()
- S102/S307/S310/S311/S603/S605/S606/S607/S108: Add noqa for intentional usage
- F601: Fix duplicate dict key in unsplash.py
- N802: Rename ReplyCheck -> reply_check with backward compat alias
- N813: Rename bs -> BS in icons.py
- B007/B020: Rename loop var _j in animations.py
- SIM102: Collapse nested if in autofwd.py
- SIM113: Use enumerate() in calculator.py
- A002: Add noqa for builtin shadowing in admlist.py
- F811: Add noqa for cohere redefinition
- edu_master: Fix ARG001, S108, S110, SIM117, apply --unsafe-fixes
- Add modules_list.txt with full module inventory
- Parse school diary calendar HTML table for daily/weekly/monthly views
- Cache diary data with 5-minute TTL
- Inline keyboard for today/tomorrow/week/month selection
- Ukrainian month/weekday names and formatting
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