fix: escape release body via Python to avoid YAML parsing errors

.gitea/workflows/release.yml

@@ -30,36 +30,38 @@ jobs:
           REPO=$(echo "${{ gitea.repository }}" | tr '[:upper:]' '[:lower:]')
           DOCKER_IMAGE="${SERVER_HOST}/${REPO}"
 
-          # Build release body
-          BODY=$(cat <<BODY_EOF
-## Downloads
+          # Build release body via Python to avoid YAML escaping issues
+          BODY_JSON=$(python3 -c "
+          import json, sys
+          tag = '$TAG'
+          image = '$DOCKER_IMAGE'
+          body = f'''## Downloads
 
           | Platform | File | Description |
           |----------|------|-------------|
-| Windows (installer) | \`LedGrab-${TAG}-setup.exe\` | Install with Start Menu shortcut, optional autostart, uninstaller |
-| Windows (portable) | \`LedGrab-${TAG}-win-x64.zip\` | Unzip anywhere → run \`LedGrab.bat\` |
-| Linux | \`LedGrab-${TAG}-linux-x64.tar.gz\` | Extract → run \`./run.sh\` |
-| Docker | See below | \`docker pull\` → \`docker run\` |
+          | Windows (installer) | \`LedGrab-{tag}-setup.exe\` | Install with Start Menu shortcut, optional autostart, uninstaller |
+          | Windows (portable) | \`LedGrab-{tag}-win-x64.zip\` | Unzip anywhere, run LedGrab.bat |
+          | Linux | \`LedGrab-{tag}-linux-x64.tar.gz\` | Extract, run ./run.sh |
+          | Docker | See below | docker pull + docker run |
 
           After starting, open **http://localhost:8080** in your browser.
 
           ### Docker
 
           \`\`\`bash
-docker pull ${DOCKER_IMAGE}:${TAG}
-docker run -d --name ledgrab -p 8080:8080 -v ledgrab-data:/app/data ${DOCKER_IMAGE}:${TAG}
+          docker pull {image}:{tag}
+          docker run -d --name ledgrab -p 8080:8080 -v ledgrab-data:/app/data {image}:{tag}
           \`\`\`
 
           ### First-time setup
 
-1. Change the default API key in \`config/default_config.yaml\` or set \`WLED_AUTH__API_KEYS='["your-secret-key"]'\`
+          1. Change the default API key in config/default_config.yaml
           2. Open http://localhost:8080 and discover your WLED devices
-3. See [INSTALLATION.md](INSTALLATION.md) for detailed configuration
-BODY_EOF
-          )
-
-          # Escape body for JSON
-          BODY_JSON=$(echo "$BODY" | python3 -c "import sys,json; print(json.dumps(sys.stdin.read()))")
+          3. See INSTALLATION.md for detailed configuration
+          '''
+          import textwrap
+          print(json.dumps(textwrap.dedent(body).strip()))
+          ")
 
           RELEASE=$(curl -s -X POST "$BASE_URL/releases" \
             -H "Authorization: token $GITEA_TOKEN" \