Per reviewer (danijel): forte-drop's DB deployment belongs in apps/,
not infra/. Straight relocation — same structure (Application +
resources/ subdir), source.path updated to apps/base/forte-drop-postgresql/resources,
wired into apps/overlays/upc-dev. Backup CronJob + RESTORE.md + sealed
pg creds move with it.
Consolidates the whole forte-drop deployment (postgres + web + mcp)
under apps/. The infra PR (#17) is now superseded by this.
