Adds workshop_routes blueprint with add-items / remove-item / manual-
build endpoints plus admin /admin/workshop/refresh. Add-items handles
single ID, single URL, multi-line batch, or a collection ID; auto-
enqueues a coalesced build_overlay job per call. Reject non-L4D2 items
with 400, duplicate associations with friendly toast, intruders with
403.
Generalizes overlay_routes: type+name only on create (no path field);
external is admin-only and system-wide, workshop is per-user and
auto-pathed. Update is name-only. Delete recursively removes the
on-disk dir only for managed paths (path == str(id)); legacy externals
are left in place. The pre-existing in-use guard is preserved.
Page routes filter the overlay listing by user permissions and load
workshop items + the latest related job for the detail view.
Templates: unified Create modal with type radio (no path field).
Type-aware overlay detail: workshop overlays show a multi-line input
+ items/collection radio + item table partial with thumbnails, manual
Rebuild button, and a small status indicator pulled from the latest
related job. Admin page gets a "Refresh all workshop items" button.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
