Fix act_runner auth: short-form local actions + full GitHub URLs

DEFAULT_ACTIONS_URL=self requires local actions use short form
(cal/gitea-actions/...) so the runner passes its auth token, and
GitHub actions use full URLs (https://github.com/...) to bypass
local resolution.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitea/workflows/docker-build.yml

@@ -22,27 +22,27 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: https://github.com/actions/checkout@v4
         with:
           fetch-depth: 0  # Full history for tag counting
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: https://github.com/docker/setup-buildx-action@v3
 
       - name: Login to Docker Hub
-        uses: docker/login-action@v3
+        uses: https://github.com/docker/login-action@v3
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
       - name: Generate CalVer version
         id: calver
-        uses: https://git.manticorum.com/cal/gitea-actions/calver@main
+        uses: cal/gitea-actions/calver@main
 
       # Dev build: push with dev + dev-SHA tags (PR/feature branches)
       - name: Build Docker image (dev)
         if: github.ref != 'refs/heads/main'
-        uses: docker/build-push-action@v5
+        uses: https://github.com/docker/build-push-action@v5
         with:
           context: .
           push: true
@@ -55,7 +55,7 @@ jobs:
       # Production build: push with latest + CalVer tags (main only)
       - name: Build Docker image (production)
         if: github.ref == 'refs/heads/main'
-        uses: docker/build-push-action@v5
+        uses: https://github.com/docker/build-push-action@v5
         with:
           context: .
           push: true
@@ -68,7 +68,7 @@ jobs:
 
       - name: Tag release
         if: success() && github.ref == 'refs/heads/main'
-        uses: https://git.manticorum.com/cal/gitea-actions/gitea-tag@main
+        uses: cal/gitea-actions/gitea-tag@main
         with:
           version: ${{ steps.calver.outputs.version }}
           token: ${{ github.token }}
@@ -97,7 +97,7 @@ jobs:
 
       - name: Discord Notification - Success
         if: success() && github.ref == 'refs/heads/main'
-        uses: https://git.manticorum.com/cal/gitea-actions/discord-notify@main
+        uses: cal/gitea-actions/discord-notify@main
         with:
           webhook_url: ${{ secrets.DISCORD_WEBHOOK }}
           title: "Major Domo Database"
@@ -109,7 +109,7 @@ jobs:
 
       - name: Discord Notification - Failure
         if: failure() && github.ref == 'refs/heads/main'
-        uses: https://git.manticorum.com/cal/gitea-actions/discord-notify@main
+        uses: cal/gitea-actions/discord-notify@main
         with:
           webhook_url: ${{ secrets.DISCORD_WEBHOOK }}
           title: "Major Domo Database"