chore(ci): fix plugins release workflow

Author: streamer45

.github/workflows/marketplace-build.yml

@@ -30,7 +30,7 @@ env:
   MINISIGN_DEB_URL: "http://launchpadlibrarian.net/780165111/minisign_0.12-1_amd64.deb"
   MARKETPLACE_VERSION: ${{ inputs.version }}
   RELEASE_TAG: ${{ inputs.release_tag }}
-  REGISTRY_BASE_URL: ${{ inputs.registry_base_url || format('https://{0}.github.io/streamkit/registry', github.repository_owner) }}
+  REGISTRY_BASE_URL: ${{ inputs.registry_base_url || 'https://streamkit.dev/registry' }}
 
 jobs:
   build-marketplace:

RELEASING.md

@@ -60,11 +60,14 @@ and opens the registry PR without rebuilding the server/UI. Both tag releases
 and marketplace-only releases share the same reusable marketplace workflow
 (`.github/workflows/marketplace-build.yml`).
 
+Ensure "Allow GitHub Actions to create and approve pull requests" is enabled
+in repo settings so the registry PR can be opened automatically.
+
 ### Verify outputs
 
 - GitHub Release includes `*-bundle.tar.zst` assets.
 - Registry metadata is published after merging the registry PR:
-  `https://<org>.github.io/streamkit/registry/index.json`.
+  `https://streamkit.dev/registry/index.json`.
 - Verify a manifest signature:
 
 ```bash