Machine fs-37 / freestyle; Linux x86_64; Node 26.12.1 via global vp; Electron 44.9.3; headless-desktop Xvfb 1920x1080x24 with D-Bus and unlocked GNOME keyring; --no-sandbox --disable-gpu plus ELECTRON_DISABLE_SANDBOX=1 through relaunch. AppImage runtime is exercised at its real installed path; The mount-only preflight printed a mount path but the real headless launch failed with fusermount Operation not permitted. Runtime fixtures therefore use --appimage-extract-and-run at the real installed image path, with APPIMAGE_EXTRACT_AND_RUN=1 and LIBGL_ALWAYS_SOFTWARE=1 inherited through relaunch. Every fixture uses a fresh synthetic HOME and identical T3CODE_HOME=$HOME/.t3 under /tmp/lead-23005-r2/capture. No production database or provider credentials accessed. Build caches only use the existing home; no app/server is run with it.
