- Fix media group collection: use module-level dicts instead of dialog_data
to avoid race conditions between concurrent handler calls
- Add photo/media group sending in user notifications (add/remove hours)
- Add admin username with emoji to all transaction detail windows
- Add emoji prefixes to detail content fields
- Support multiple photos via JSON array in photo_file_id column
- Change photo_file_id column from String(512) to Text
- Add get_photo_file_ids() helper with backward compat for single file_id
- Add 'All photos' button for media groups in detail views
- Remove /start photo_ deep link fallback handler
- Add Alembic migration for column type change
kolo