Two concurrent vidgod_index jobs on one node hit "database is locked" —
vg-index now opens the library in WAL mode with a 60s busy timeout (vg-find
30s). setup_venvs.sh installs hatchling+editables and does the MatAnyone -e
with --no-deps (its pyproject drags in cchardet, dead on py3.12).
Found during the m4probook standup + farm spill test.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>