chown_for_rootless_container prefers `podman unshare chown` (which maps
container uid N through the userns), but when that failed once it fell
back to `sudo chown -R <literal>` — writing e.g. host uid 999 for
container uid 999 and reporting success. Host-999 maps to nobody inside
the userns, so the app could not open its own data while everything
claimed the chown worked: botfights on framework-pt crash-looped every
10s on SQLITE_CANTOPEN over a data dir the daemon itself had just
"fixed".
The sudo fallback now translates container ids (1..99999) to
subuid_base + id - 1 (fleet base 100000; container root maps to the
service user, 1000). Already-mapped ids and uid 0 pass through.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
