Added image picker and upload function

.gitignore

@@ -6,5 +6,5 @@ coverage/
 *.log
 .env*
 !.env.example
-data/
+data/database.json
 

server.ts

@@ -204,6 +204,52 @@ Die Synopsis soll neugierig machen, stark die visuelle Stimmung rüberbringen un
   }
 });
 
+// 5. Upload a file via base64
+app.post("/api/admin/upload-file", verifyToken, async (req, res) => {
+  const { fileName, base64Data } = req.body;
+  if (!fileName || !base64Data) {
+    res.status(400).json({ error: "Dateiname und Base64-Daten sind erforderlich." });
+    return;
+  }
+
+  try {
+    // Sanitize filename to prevent directory traversal
+    const safeName = path.basename(fileName).replace(/[^a-zA-Z0-9.\-_]/g, "_");
+    const uploadPath = path.join(DATA_DIR, "uploads", safeName);
+
+    // Strip base64 metadata prefix if present (e.g., "data:image/jpeg;base64,")
+    const base64Clean = base64Data.replace(/^data:image\/\w+;base64,/, "");
+    const buffer = Buffer.from(base64Clean, "base64");
+
+    await fs.writeFile(uploadPath, buffer);
+    res.json({ success: true, url: `/uploads/${safeName}` });
+  } catch (err: any) {
+    console.error("File upload failed:", err);
+    res.status(500).json({ error: "Fehler beim Speichern der Datei auf dem Server." });
+  }
+});
+
+// 6. List uploaded files
+app.get("/api/admin/list-uploads", verifyToken, async (req, res) => {
+  try {
+    const uploadsDir = path.join(DATA_DIR, "uploads");
+    await fs.mkdir(uploadsDir, { recursive: true });
+    const files = await fs.readdir(uploadsDir);
+    
+    const fileList = files
+      .filter(file => !file.startsWith(".")) // skip hidden files
+      .map(file => ({
+        name: file,
+        url: `/uploads/${file}`
+      }));
+      
+    res.json({ success: true, files: fileList });
+  } catch (err: any) {
+    console.error("Failed to list uploads:", err);
+    res.status(500).json({ error: "Fehler beim Auflisten der hochgeladenen Dateien." });
+  }
+});
+
 // Configure Vite middleware or static serve
 async function startServer() {
   // Serve the dynamic uploads directory statically

src/components/AdminPanel.tsx

@@ -4,6 +4,7 @@ import {
   Lock, Save, Plus, Trash2, Edit2, Check, RefreshCw, Sparkles, 
   BookOpen, Compass, Clipboard, Eye, Music, LogOut, ArrowLeftRight 
 } from "lucide-react";
+import ImagePicker from "./ImagePicker";
 
 interface AdminPanelProps {
   onLogout: () => void;
@@ -536,12 +537,12 @@ export default function AdminPanel({ onLogout }: AdminPanelProps) {
                   />
                 </div>
                 <div className="space-y-1">
-                  <label className="text-xs font-mono text-slate-400 uppercase">Avatar/Autorenfoto URL</label>
+                  <label className="text-xs font-mono text-slate-400 uppercase font-bold text-white">Avatar / Autorenfoto</label>
-                  <input 
+                  <ImagePicker
-                    type="text" 
                     value={profile.avatarUrl}
-                    onChange={(e) => updateProfileField("avatarUrl", e.target.value)}
+                    onChange={(url) => updateProfileField("avatarUrl", url)}
-                    className="w-full px-3 py-2 bg-slate-950 border border-slate-800 rounded-xl text-white outline-none focus:border-indigo-500 text-sm"
+                    token={token}
+                    label="Autorenfoto / Avatar"
                   />
                 </div>
                 <div className="space-y-1">
@@ -858,13 +859,12 @@ export default function AdminPanel({ onLogout }: AdminPanelProps) {
                         />
                       </div>
                       <div className="space-y-1">
-                        <label className="text-xs font-mono text-slate-400 uppercase">Cover-Bild URL</label>
+                        <label className="text-xs font-mono text-slate-400 uppercase font-bold text-white">Cover-Bild</label>
-                        <input 
+                        <ImagePicker
-                          type="text" 
                           value={bookForm.coverUrl || ""}
-                          onChange={(e) => setBookForm({ ...bookForm, coverUrl: e.target.value })}
+                          onChange={(url) => setBookForm({ ...bookForm, coverUrl: url })}
-                          placeholder="Link oder hochgeladener Pfad..."
+                          token={token}
-                          className="w-full px-3 py-2 bg-slate-950 border border-slate-800 rounded-xl text-white outline-none focus:border-indigo-500 text-sm font-mono"
+                          label="Buch-Cover"
                         />
                       </div>
                       <div className="space-y-1">