chore(ci): add host diagnostics (df -h, df -i, docker info) to debug runner disk/inode exhaustion

.gitea/workflows/deploy.yml

@@ -51,6 +51,12 @@ jobs:
           echo "Purging old tool caches..."
           rm -rf /opt/hostedtoolcache/* || true
           rm -rf /opt/hostedtoolcache/.[!.]* || true
+          echo "=== Host Disk Usage ==="
+          docker run --rm -v /:/host-root alpine df -h || true
+          echo "=== Host Inode Usage ==="
+          docker run --rm -v /:/host-root alpine df -i || true
+          echo "=== Host Docker Info ==="
+          docker info || true
           echo "Purging old build layers, unused volumes and images..."
           docker builder prune -a -f || true
           docker volume prune -f || true