Latest-version sweep across the Oban stack. Final state:
oban 2.22.1 (hexpm)
oban_pro 1.7.0 (vendored, latest in licensed repo)
oban_met 1.1.0 (vendored, latest in licensed repo and hexpm)
oban_web 2.12.3 (vendored from public hexpm)
oban_web was re-vendored via `mix hex.package fetch oban_web 2.12.3
--unpack` and dropped into vendor/oban_web. No local mods to
preserve — vendor commit history shows the dir was a vanilla
import.
Vendor oban_web 2.12.1 and oban_met 1.1.0 (taken from the
towerops-web2 vendor tree), bump oban to ~> 2.21, and mount the Oban
dashboard at /admin/oban behind the existing require_admin on_mount
hook. Adds an admin-only "Oban" nav link and extends the Dockerfile
to copy vendor/ before deps.get so production builds pick up the
path dependencies.
