wishlist: follow upstream to ghcr.io and pin v0.66.0 (Hub image is gone)

wishlist deployed but never created a container: the pull fails because
cmintey/wishlist:1.9.0 no longer exists on Docker Hub. Upstream publishes to
ghcr.io/cmintey/wishlist, where the current release is v0.66.0 (2026-07-08,
confirmed against the GitHub releases API).

Note the version string goes '1.9.0' -> 'v0.66.0'. That is NOT a downgrade: the
old Hub pin used a scheme upstream does not publish under, so the catalog was
pinned to an image reference that has no counterpart in the real release stream.
This was a PRE-EXISTING defect -- wishlist was undeployable before this campaign
too (it was not version-bumped by the sweep).

Campaign 7 catalog sweep.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Nn3VgQk9iwEGgyx6QJ2NvE

templates/wishlist/docker-compose.yml

@@ -8,7 +8,7 @@
 
 services:
   wishlist:
-    image: cmintey/wishlist:1.9.0
+    image: ghcr.io/cmintey/wishlist:v0.66.0
     container_name: wishlist
     restart: unless-stopped
     environment: