test fix import ndpi

setup_build_server.sh

@@ -88,6 +88,25 @@ if [ -d "/tmp/nDPI/python" ]; then
     pip install "setuptools<81" "packaging<25" wheel
     if ! pip install --no-build-isolation /tmp/nDPI/python; then
         echo "==> WARNING: nDPI Python bindings install failed, backend will run without DPI enrichment"
+    else
+        if python - <<'PY'
+import importlib
+mods = []
+for name in ("ndpi", "pyndpi"):
+    try:
+        m = importlib.import_module(name)
+        mods.append((name, getattr(m, "__file__", "unknown")))
+    except Exception:
+        pass
+if not mods:
+    raise SystemExit(1)
+print("nDPI Python modules:", mods)
+PY
+        then
+            echo "==> nDPI Python import check passed"
+        else
+            echo "==> WARNING: nDPI installed but import failed in backend venv"
+        fi
     fi
 fi
 
@@ -234,6 +253,18 @@ if [ -d "/tmp/nDPI/python" ]; then
     pip install "setuptools<81" "packaging<25" wheel
     if ! pip install --no-build-isolation /tmp/nDPI/python; then
         echo "WARNING: nDPI Python bindings install failed during runner build"
+    else
+        python - <<'PY' || echo "WARNING: nDPI import check failed during runner build"
+import importlib
+for name in ("ndpi", "pyndpi"):
+    try:
+        m = importlib.import_module(name)
+        print("nDPI import OK:", name, getattr(m, "__file__", "unknown"))
+        raise SystemExit(0)
+    except Exception:
+        pass
+raise SystemExit(1)
+PY
     fi
 fi
 pip install -r requirements.txt