uv's python-build-standalone distributions only gained FTS5 in mid-2025
(#694). A stale interpreter already in uv's store — which `uv python find`
reuses without checking — can lack it, leaving the supported install with
a SQLite that can't create the FTS5 virtual tables hermes_state.py needs
for full-text session search ("no such module: fts5").
check_python now probes the resolved interpreter for FTS5 and, if missing,
reinstalls the latest patch for $PYTHON_VERSION (which has FTS5) and
re-resolves. If an FTS5-capable Python still can't be obtained (offline,
pinned env), it warns and continues — Hermes degrades gracefully and only
disables session search. No bundled second SQLite, no user action.
4fa20f9a8b