Complete admin dashboard with user management, config and settings tabs

frontend/src/app/admin/login/page.tsx

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+"use client";
+
+import { useState, Suspense } from "react";
+import { useRouter, useSearchParams } from "next/navigation";
+import { useTranslationStore } from "@/lib/store";
+import { Shield, Lock, Eye, EyeOff, AlertCircle } from "lucide-react";
+
+function AdminLoginContent() {
+  const router = useRouter();
+  const searchParams = useSearchParams();
+  const { setAdminToken } = useTranslationStore();
+  
+  const [password, setPassword] = useState("");
+  const [showPassword, setShowPassword] = useState(false);
+  const [loading, setLoading] = useState(false);
+  const [error, setError] = useState<string | null>(null);
+
+  const API_BASE = process.env.NEXT_PUBLIC_API_URL || "http://localhost:8000";
+
+  const handleSubmit = async (e: React.FormEvent) => {
+    e.preventDefault();
+    setLoading(true);
+    setError(null);
+
+    try {
+      const response = await fetch(`${API_BASE}/admin/login`, {
+        method: "POST",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({ password }),
+      });
+
+      if (!response.ok) {
+        const data = await response.json();
+        throw new Error(data.detail || "Mot de passe incorrect");
+      }
+
+      const data = await response.json();
+      setAdminToken(data.access_token);
+      
+      const redirect = searchParams.get("redirect") || "/admin";
+      router.push(redirect);
+    } catch (err: any) {
+      setError(err.message || "Erreur de connexion");
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  return (
+    <div className="min-h-screen bg-gradient-to-br from-slate-900 via-purple-900 to-slate-900 flex items-center justify-center p-4">
+      <div className="w-full max-w-md">
+        {/* Logo */}
+        <div className="text-center mb-8">
+          <div className="inline-flex items-center justify-center w-16 h-16 bg-purple-600/20 rounded-2xl mb-4">
+            <Shield className="w-8 h-8 text-purple-400" />
+          </div>
+          <h1 className="text-2xl font-bold text-white">Administration</h1>
+          <p className="text-gray-400 mt-2">Connexion requise</p>
+        </div>
+
+        {/* Form */}
+        <form onSubmit={handleSubmit} className="bg-black/30 backdrop-blur-xl rounded-2xl border border-white/10 p-8">
+          {error && (
+            <div className="flex items-center gap-3 p-4 mb-6 bg-red-500/10 border border-red-500/20 rounded-xl text-red-400">
+              <AlertCircle className="w-5 h-5 flex-shrink-0" />
+              <p>{error}</p>
+            </div>
+          )}
+
+          <div className="space-y-6">
+            <div>
+              <label className="block text-gray-400 text-sm mb-2">Mot de passe administrateur</label>
+              <div className="relative">
+                <Lock className="absolute left-4 top-1/2 -translate-y-1/2 w-5 h-5 text-gray-400" />
+                <input
+                  type={showPassword ? "text" : "password"}
+                  value={password}
+                  onChange={(e) => setPassword(e.target.value)}
+                  placeholder="••••••••"
+                  className="w-full pl-12 pr-12 py-3 bg-black/30 border border-white/10 rounded-xl text-white placeholder:text-gray-500 focus:outline-none focus:border-purple-500 transition-all"
+                  required
+                />
+                <button
+                  type="button"
+                  onClick={() => setShowPassword(!showPassword)}
+                  className="absolute right-4 top-1/2 -translate-y-1/2 text-gray-400 hover:text-white transition-colors"
+                >
+                  {showPassword ? <EyeOff className="w-5 h-5" /> : <Eye className="w-5 h-5" />}
+                </button>
+              </div>
+            </div>
+
+            <button
+              type="submit"
+              disabled={loading || !password}
+              className="w-full py-3 bg-purple-600 hover:bg-purple-700 disabled:bg-purple-600/50 disabled:cursor-not-allowed text-white font-medium rounded-xl transition-all flex items-center justify-center gap-2"
+            >
+              {loading ? (
+                <>
+                  <div className="w-5 h-5 border-2 border-white/30 border-t-white rounded-full animate-spin" />
+                  Connexion...
+                </>
+              ) : (
+                <>
+                  <Shield className="w-5 h-5" />
+                  Accéder au panneau admin
+                </>
+              )}
+            </button>
+          </div>
+        </form>
+
+        <p className="text-center text-gray-500 text-sm mt-6">
+          Accès réservé aux administrateurs
+        </p>
+      </div>
+    </div>
+  );
+}
+
+export default function AdminLoginPage() {
+  return (
+    <Suspense fallback={
+      <div className="min-h-screen bg-gradient-to-br from-slate-900 via-purple-900 to-slate-900 flex items-center justify-center">
+        <div className="text-white text-xl">Chargement...</div>
+      </div>
+    }>
+      <AdminLoginContent />
+    </Suspense>
+  );
+}