fix: use authenticated git clone for checkout

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.gitea/workflows/build-release.yml

@@ -11,7 +11,7 @@ jobs:
       - name: Checkout
         run: |
           git clone --depth 1 --branch "${GITHUB_REF_NAME}" \
-            "${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY}.git" .
+            "http://admin:${{ secrets.GITHUB_TOKEN }}@192.168.5.10:3000/${GITHUB_REPOSITORY}.git" .
 
       - name: Validate environment
         run: |