CI: Gitea checkout without GitHub; workflow_dispatch + daily schedule (UTC)

Made-with: Cursor

.github/workflows/build-and-release.yml

@@ -1,7 +1,10 @@
 name: Build and Release
 
 on:
-  push:
+  workflow_dispatch:
+  schedule:
+    # Midnight UTC every day (Actions cron is UTC). For local midnight, shift hours, e.g. 22:00 UTC ≈ midnight CET (winter).
+    - cron: "0 0 * * *"
 
 concurrency:
   group: nightly-release-${{ github.repository }}
@@ -15,8 +18,27 @@ jobs:
       contents: write
 
     steps:
+      # Clone from Gitea (this runner cannot reach github.com for actions/checkout@v4)
       - name: Checkout repository
-        uses: actions/checkout@v4
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          set -euo pipefail
+          cd "${GITHUB_WORKSPACE}"
+          SERVER="${{ github.server_url }}"
+          REPO="${{ github.repository }}"
+          SHA="${{ github.sha }}"
+          HOST="${SERVER#*://}"
+          HOST="${HOST%%/*}"
+          if [ -n "${GITHUB_TOKEN:-}" ]; then
+            URL="https://oauth2:${GITHUB_TOKEN}@${HOST}/${REPO}.git"
+          else
+            URL="${SERVER}/${REPO}.git"
+          fi
+          git init
+          git remote add origin "$URL"
+          git fetch --depth 1 origin "$SHA"
+          git checkout --force FETCH_HEAD
 
       - name: Set up build tools
         run: |