chore: probe new server ssh access from host runner

.gitea/workflows/fix-runner-labels.yml

@@ -0,0 +1,33 @@
+name: Probe New Server
+
+on:
+  push:
+    branches:
+      - fix/runner-labels
+
+jobs:
+  probe-new-server:
+    name: Probe new server from host runner
+    runs-on: host
+    steps:
+      - name: Check SSH access to new server
+        run: |
+          echo "=== Try SSH to 172.30.18.199 ==="
+          timeout 5 ssh -o StrictHostKeyChecking=no -o ConnectTimeout=3 root@172.30.18.199 "echo CONNECTED && hostname" 2>&1 || echo "SSH failed"
+          
+          echo ""
+          echo "=== Try SSH to 116.62.226.203 ==="
+          timeout 5 ssh -o StrictHostKeyChecking=no -o ConnectTimeout=3 root@116.62.226.203 "echo CONNECTED && hostname" 2>&1 || echo "SSH failed"
+          
+          echo ""
+          echo "=== Check SSH keys available ==="
+          ls -la ~/.ssh/ 2>/dev/null || echo "No .ssh dir"
+          
+          echo ""
+          echo "=== Check known_hosts ==="
+          cat ~/.ssh/known_hosts 2>/dev/null | head -10 || echo "No known_hosts"
+          
+          echo ""
+          echo "=== IP route / network info ==="
+          ip route 2>/dev/null | head -5 || route 2>/dev/null | head -5 || echo "no route cmd"
+          hostname -I 2>/dev/null || ifconfig 2>/dev/null | head -10 || echo "no ifconfig"