Covers anonymous/non-admin access (404), and the full admin flow: switch
table, edit a subscriptions.prix_ht cell through the real DataTable UI,
verify the write lands in the DB, and verify the edit is logged and
visible in the admin_actions table.
tests/users.test.sqlite is committed and shared by the whole Selenium
session, so _cleanup_user deletes every row the tests create. Beyond
resetting sqlite_sequence (already needed for the AUTOINCREMENT
counter), a plain DELETE also leaves stale, never-zeroed bytes behind
in the admin_actions/subscriptions b-tree pages once they go back to
zero rows, which byte-diffs the file even though its logical content
is unchanged. VACUUM rebuilds the file from live data only, producing
a deterministic page layout (verified empirically across independent
runs with different random test data). Re-baselined the fixture to
that canonical vacuumed state so `git status` stays clean after
running the suite.
Colin Maudry
6739e4926b