- Move mid-file pydantic/uuid imports to top of sessions.py
- Add can_access_tree, is_active, and draft status guards to batch_launch_sessions
- Remove notes field from _BatchTarget to keep API clean
- Add max_length=100 cap to targets list in _BatchLaunchRequest
- Hoist tree_snapshot computation above the session creation loop
- Replace N db.refresh() calls with a single bulk select after flush
- Add test_batch_launch_requires_auth and test_batch_launch_rejects_draft_tree tests
- Fix trailing slash on /api/v1/trees/ URL in new test (caused 307 redirect)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
- Add batch_id (UUID, nullable, indexed) and target_label (String 255,
nullable) columns to the Session model
- Manual Alembic migration 6e8128ef2aa8 applies both columns
- POST /sessions/batch creates one session per target for maintenance
flows; rejects empty targets (422) and non-maintenance trees (400)
- SessionResponse schema exposes batch_id and target_label
- 3 new integration tests, all 540 tests pass
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
