158f387bc0
dm-03 and dm-04 spawn a throwaway "ghost" identity by calling $AMY_BIN directly (not through amy_a / amy_d), so they missed the plaintext backend flag added in the previous commit and were failing with "No TTY and no passphrase source" on headless CI. https://claude.ai/code/session_01SqdMfLdXvb3GskFLcEj739