send callibration

server/server.js

@@ -426,6 +426,54 @@ app.post('/api/calibration/compute', async (req, res) => {
   }
 });
 
+/**
+ * POST /api/calibration/upload-npz
+ * Liest {camera}_calibration.npz aus der aktuellen Session und
+ * schickt sie per PUT an den Webcam-Service.
+ * Body: { camera: "cam0" }
+ */
+app.post('/api/calibration/upload-npz', async (req, res) => {
+  try {
+    const { camera } = req.body ?? {};
+    if (!camera) return res.status(400).json({ error: '"camera" parameter fehlt' });
+    if (!WEBCAM_URL) return res.status(501).json({ error: 'WEBCAM_URL ist nicht konfiguriert' });
+
+    const session = await findLatestCalibSession();
+    if (!session) return res.status(400).json({ error: 'Keine Kalibrierungs-Session vorhanden' });
+
+    const npzPath = path.join(calibDataDir, session, `${camera}_calibration.npz`);
+
+    try {
+      await fsPromises.access(npzPath);
+    } catch {
+      return res.status(404).json({
+        error: `Datei nicht gefunden: ${camera}_calibration.npz — bitte zuerst "Kalibrierung berechnen".`
+      });
+    }
+
+    const npzData = await fsPromises.readFile(npzPath);
+    const putUrl  = new URL(`/api/cameras/${camera}/calibration`, WEBCAM_URL).toString();
+
+    const putRes = await fetch(putUrl, {
+      method:  'PUT',
+      headers: { 'Content-Type': 'application/octet-stream' },
+      body:    npzData,
+    });
+
+    if (!putRes.ok) {
+      const text = await putRes.text();
+      return res.status(putRes.status).json({ error: `Webcam-Service: ${putRes.status} – ${text}` });
+    }
+
+    const result = await putRes.json();
+    return res.json({ ok: true, camera, session, size: npzData.length, webcam: result });
+
+  } catch (err) {
+    console.error('calibration/upload-npz error:', err);
+    return res.status(500).json({ error: String(err) });
+  }
+});
+
 async function checkServiceReachability(name, url) {
   try {
     const controller = new AbortController();