[FishID] Migration Agent — Alembic миграции без downtime, rollback стратегия

Job description

[FishID] Migration Agent Bot: @fishid bot — Определение вида рыбы по фото. AI идентификация мгновенно. Stack: Python 3.12, aiogram 3.x, Google Vision API / Gemini Vision Scale: с нуля Your focus: Alembic миграции без downtime, rollback стратегия Code is included below — start immediately, no need to request it. bot/config.py bot/handlers/photo.py (truncated — 5065 chars) Your task Analyze the code above. Focus strictly on: Alembic миграции без downtime, rollback стратегия Do 3 passes: Pass 1: Find all issues related to your focus Pass 2: Write fixes for every issue found Pass 3: Verify fixes don't break anything else Acceptance Criteria py compile passes (no syntax errors) No bare except: pass parse mode="HTML" on all message sends No hardcoded secrets or tokens IDOR protection: objects checked by user id Deliverable — reply with ALL 5 sections: SECTION 1: ISSUES FOUND File Line Issue Severity SECTION 2: FIXED FILES (only changed files — full code) SECTION 3: GIT DIFF SECTION 4: TEST REPORT Function Tested Bugs Found Fixed SECTION 5: RECOMMENDATIONS [What else should be improved]