Add zip bundle support

Fix appjail: restore director block nesting [skip-ci]

Fix appjail: null -> appjail: true [skip-ci]

fix: oops, wrong screenshot...

chore: manually add screenshot in 'manual' README

Remove cni-dnsname & add screenshots

Switch back to .env to match upstream

docs: improve deployment docs and add PostgreSQL version guidance (new users should consider using postgres 18, while existing stay on 14 until imich comes up with a migration plan)

chore: update description to match upstream

Update link to quick-start - mkdocs redirects will handle any lingering legacy urls

Add note for ocijail patch

Merge appjail support from https://github.com/daemonless/daemonless-io/pull/1/

chore: regenerate with dbuild generate v1.4.0

switch to dbuild

ci: migrate to dbuild reusable workflow