WP-0015 finished: coulomb org transfer completes 60/60 publish

After Gitea UI transfer of tegwick/whynot repos to coulomb, align
workstation remotes and federation sources to coulomb/<slug>. Roster
sweep 60/60 pass; compose has 0 fetch warnings. Mark workplan finished.

registry/federation/sources.yaml

@@ -410,14 +410,14 @@ sources:
   cache_ttl_seconds: 86400
   auth_header: Authorization
 - repo: whynot-control
-  url: https://gitea.coulomb.social/whynot/whynot-control/raw/main/registry/indexes/capabilities.yaml
+  url: https://gitea.coulomb.social/coulomb/whynot-control/raw/main/registry/indexes/capabilities.yaml
   enabled: true
   required: false
   domain: helix_forge
   cache_ttl_seconds: 86400
   auth_header: Authorization
 - repo: whynot-design
-  url: https://gitea.coulomb.social/whynot/whynot-design/raw/main/registry/indexes/capabilities.yaml
+  url: https://gitea.coulomb.social/coulomb/whynot-design/raw/main/registry/indexes/capabilities.yaml
   enabled: true
   required: false
   domain: helix_forge