The headless harness runs wnd with WHITENOISE_MOCK_KEYRING=1, but the
mock keyring is in-memory only — it starts empty on every wnd restart.
Meanwhile the SQLite databases under $data_dir persist across runs and
reference keys that no longer exist, so the second run onward fails at
startup with KeyringEntryMissingForExistingDatabase before wnd can even
open its control socket. Wipe everything under the daemon's data dir
(except logs and pid) before each start so wnd always comes up cold and
consistent with its ephemeral keyring.
Also surface failure diagnostics inline instead of burying them in a log
file path: print the last 40 lines of stderr and 20 of stdout, report
whether wnd is still alive or already exited, and break out of the 30s
wait loop the moment the daemon dies.
Claude
0f032e39d9