feat: Phase 1 — socle backend FastAPI + frontend Next.js

Backend (FastAPI + SQLAlchemy):
- Modèles : User, Client, Audit, Cible, Vulnérabilité, Action
- Auth JWT (register/login/me) avec bcrypt
- Routes CRUD complets : clients, audits, cibles, vulnérabilités, actions
- Schémas Pydantic v2, migrations Alembic configurées
- Rate limiting (slowapi), CORS, structure scanners/reports pour phase 2

Frontend (Next.js 14 App Router):
- shadcn/ui : Button, Input, Card, Badge, Label
- Page login avec gestion token JWT
- Dashboard avec stats temps réel
- Pages Clients (grille) et Audits (liste) avec recherche
- Layout avec sidebar navigation + protection auth
- Dockerfiles multi-stage (backend + frontend standalone)

Infrastructure:
- docker-compose.yml : postgres, redis, backend, frontend
- docker-compose.prod.yml avec labels Traefik
- .env.example complet
- .gitignore mis à jour

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/app/(auth)/login/page.tsx

@@ -0,0 +1,81 @@
+"use client";
+
+import { useState, FormEvent } from "react";
+import { useRouter } from "next/navigation";
+import { Shield } from "lucide-react";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { Label } from "@/components/ui/label";
+import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "@/components/ui/card";
+import { authApi } from "@/lib/api";
+import { setToken } from "@/lib/auth";
+
+export default function LoginPage() {
+  const router = useRouter();
+  const [email, setEmail] = useState("");
+  const [password, setPassword] = useState("");
+  const [error, setError] = useState<string | null>(null);
+  const [loading, setLoading] = useState(false);
+
+  async function handleSubmit(e: FormEvent) {
+    e.preventDefault();
+    setError(null);
+    setLoading(true);
+    try {
+      const { access_token } = await authApi.login(email, password);
+      setToken(access_token);
+      router.push("/dashboard");
+    } catch (err) {
+      setError(err instanceof Error ? err.message : "Erreur de connexion");
+    } finally {
+      setLoading(false);
+    }
+  }
+
+  return (
+    <div className="min-h-screen flex items-center justify-center bg-muted/40">
+      <Card className="w-full max-w-md">
+        <CardHeader className="text-center">
+          <div className="flex justify-center mb-2">
+            <Shield className="h-10 w-10 text-primary" />
+          </div>
+          <CardTitle className="text-2xl">AuditShield</CardTitle>
+          <CardDescription>Connectez-vous à votre espace sécurisé</CardDescription>
+        </CardHeader>
+        <CardContent>
+          <form onSubmit={handleSubmit} className="space-y-4">
+            <div className="space-y-2">
+              <Label htmlFor="email">Email</Label>
+              <Input
+                id="email"
+                type="email"
+                placeholder="vous@exemple.fr"
+                value={email}
+                onChange={(e) => setEmail(e.target.value)}
+                required
+                autoComplete="email"
+              />
+            </div>
+            <div className="space-y-2">
+              <Label htmlFor="password">Mot de passe</Label>
+              <Input
+                id="password"
+                type="password"
+                value={password}
+                onChange={(e) => setPassword(e.target.value)}
+                required
+                autoComplete="current-password"
+              />
+            </div>
+            {error && (
+              <p className="text-sm text-destructive text-center">{error}</p>
+            )}
+            <Button type="submit" className="w-full" disabled={loading}>
+              {loading ? "Connexion..." : "Se connecter"}
+            </Button>
+          </form>
+        </CardContent>
+      </Card>
+    </div>
+  );
+}