- requirePin: prepare pin-lookup statement once at module level instead of per-request
- Gradebook: replace O(students × items × 3) per-item queries with 2 bulk INs + in-memory Maps
- List/deck PUT: wrap DELETE + re-INSERT in a transaction to prevent partial-write corruption
- Print views: detect HTML vs plain-text lesson bodies before escaping, fixing rich-text output
- Planner add-task: parallelize course detail fetches with Promise.all
- Planner save-all: parallelize schedule inserts with Promise.all
- HOMESCHOOL_DIR: read from env var with existing path as fallback
- Remove unused isDown function in crossword-submit handler
- Remove dead empty-if stub in docx import change handler
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
nmemmertandClaude Sonnet 4.6
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