feat(vault): real QR code generation for WiFi entries

Replace placeholder WiFi string display with actual QR code rendered
on canvas via 'qrcode' library. Dialog now shows scannable QR image
with copy-image and download-PNG buttons.

package-lock.json

@@ -19,6 +19,7 @@
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@@ -10593,6 +10641,168 @@
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package.json

@@ -20,6 +20,7 @@
     "next": "16.1.6",
     "next-auth": "^4.24.13",
     "next-themes": "^0.4.6",
+    "qrcode": "^1.5.4",
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@@ -32,6 +33,7 @@
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     "@types/jszip": "^3.4.0",
     "@types/node": "^20",
+    "@types/qrcode": "^1.5.6",
     "@types/react": "^19",
     "@types/react-dom": "^19",
     "@types/uuid": "^10.0.0",

src/modules/password-vault/components/password-vault-module.tsx

@@ -1,6 +1,6 @@
 "use client";
 
-import { useState, useMemo } from "react";
+import { useState, useMemo, useEffect, useRef } from "react";
 import {
   Plus,
   Pencil,
@@ -558,48 +558,92 @@ function WifiQrDisplay({
   password: string;
   onCopy: (text: string) => void;
 }) {
+  const canvasRef = useRef<HTMLCanvasElement>(null);
+  const [qrDataUrl, setQrDataUrl] = useState<string | null>(null);
+
   // Build WIFI connection string
   const wifiString = useMemo(() => {
     const escaped = (s: string) => s.replace(/[\\;,"`:]/g, (c) => `\\${c}`);
     return `WIFI:T:WPA;S:${escaped(ssid)};P:${escaped(password)};;`;
   }, [ssid, password]);
 
+  // Generate QR code on canvas
+  useEffect(() => {
+    let cancelled = false;
+    async function render() {
+      const QRCode = (await import("qrcode")).default;
+      const canvas = canvasRef.current;
+      if (!canvas || cancelled) return;
+      await QRCode.toCanvas(canvas, wifiString, {
+        width: 280,
+        margin: 2,
+        color: { dark: "#000000", light: "#ffffff" },
+      });
+      // Also store as data URL for copy/download
+      const url = canvas.toDataURL("image/png");
+      if (!cancelled) setQrDataUrl(url);
+    }
+    render();
+    return () => { cancelled = true; };
+  }, [wifiString]);
+
+  const handleDownload = () => {
+    if (!qrDataUrl) return;
+    const a = document.createElement("a");
+    a.href = qrDataUrl;
+    a.download = `WiFi-${ssid}.png`;
+    a.click();
+  };
+
+  const handleCopyImage = async () => {
+    const canvas = canvasRef.current;
+    if (!canvas) return;
+    try {
+      const blob = await new Promise<Blob | null>((res) =>
+        canvas.toBlob(res, "image/png"),
+      );
+      if (blob) {
+        await navigator.clipboard.write([
+          new ClipboardItem({ "image/png": blob }),
+        ]);
+        onCopy("__image__");
+      }
+    } catch {
+      // Fallback: copy the wifi string instead
+      onCopy(wifiString);
+    }
+  };
+
   return (
     <div className="space-y-4">
       <div className="flex flex-col items-center gap-4">
-        {/* Visual WiFi indicator */}
+        {/* QR Code canvas */}
-        <div className="rounded-lg border bg-white p-6 flex flex-col items-center gap-3">
+        <div className="rounded-lg border bg-white p-4 flex flex-col items-center gap-3">
-          <Wifi className="h-16 w-16 text-blue-500" />
+          <canvas ref={canvasRef} className="rounded" />
           <div className="text-center">
-            <p className="font-medium text-lg text-gray-900">{ssid}</p>
+            <p className="font-medium text-base text-gray-900">{ssid}</p>
-            <p className="text-sm text-gray-500 mt-1">
+            <p className="text-xs text-gray-500 mt-0.5">
-              Copiază string-ul de mai jos într-un generator QR
+              Scanează cu telefonul pentru conectare
             </p>
           </div>
         </div>
 
-        {/* Connection string for copy */}
+        {/* Action buttons */}
-        <div className="w-full space-y-2">
+        <div className="flex gap-2 w-full">
-          <Label className="text-xs text-muted-foreground">
-            String conexiune WiFi
-          </Label>
-          <div className="flex gap-2">
-            <code className="flex-1 rounded border bg-muted/50 px-3 py-2 text-xs font-mono break-all">
-              {wifiString}
-            </code>
           <Button
             variant="outline"
-              size="icon"
+            className="flex-1"
-              className="shrink-0"
+            onClick={handleCopyImage}
-              onClick={() => onCopy(wifiString)}
           >
-              <Copy className="h-4 w-4" />
+            <Copy className="mr-1.5 h-4 w-4" /> Copiază imaginea
+          </Button>
+          <Button
+            variant="outline"
+            className="flex-1"
+            onClick={handleDownload}
+          >
+            <ExternalLink className="mr-1.5 h-4 w-4" /> Descarcă PNG
           </Button>
-          </div>
-          <p className="text-[10px] text-muted-foreground">
-            Lipește acest text într-un generator QR online (ex:
-            qr-code-generator.com) pentru a crea un QR code scanabil.
-          </p>
         </div>
 
         {/* Password for quick copy */}