Add network debug workflow

.gitea/workflows/debug.yml

@@ -0,0 +1,24 @@
+name: Network Debug
+
+on:
+  workflow_dispatch:
+
+jobs:
+  debug:
+    runs-on: ubuntu-latest
+    container:
+      image: catthehacker/ubuntu:act-latest
+    
+    steps:
+    - name: Debug Network
+      run:  < /dev/null | 
+        echo "=== Network Info ==="
+        ip addr show
+        echo "=== DNS Resolution ==="
+        nslookup gitea || echo "nslookup failed"
+        echo "=== Ping Test ==="
+        ping -c 1 gitea || echo "ping failed"
+        echo "=== HTTP Test ==="
+        curl -v http://gitea:3000 || echo "curl failed"
+        echo "=== Container Networks ==="
+        cat /etc/resolv.conf