feat: Implement pricing page, AI generation/transformation APIs, user/project management, and database schema.

src/app/api/ai/generate/route.ts

@@ -5,11 +5,7 @@ import { auth } from '@/lib/auth';
 import getDB from '@/lib/prisma';
 import { generateStoryContent } from '@/lib/gemini';
 
-const PLAN_AI_LIMITS: Record<string, number> = {
-    free: 100,
-    pro: 5000,
-    master: 999999,
-};
+
 
 export async function POST(request: NextRequest) {
     try {
@@ -23,17 +19,19 @@ export async function POST(request: NextRequest) {
         // Check AI usage limit from DB
         const dbUser = await prisma.user.findUnique({
             where: { id: session.user.id },
-            select: { plan: true, aiActionsUsed: true },
-        });
+            include: { subscriptionPlan: true },
+        }) as any; // Bypass Prisma client types for this relation
 
         if (!dbUser) {
             return NextResponse.json({ error: 'Utilisateur non trouvé' }, { status: 404 });
         }
 
-        const limit = PLAN_AI_LIMITS[dbUser.plan] || PLAN_AI_LIMITS.free;
-        if (dbUser.aiActionsUsed >= limit) {
+        const limit = dbUser.subscriptionPlan?.maxAiActions ?? 100;
+        const planName = dbUser.subscriptionPlan?.displayName || 'Gratuit';
+
+        if (limit !== -1 && dbUser.aiActionsUsed >= limit) {
             return NextResponse.json(
-                { error: `Limite de ${limit} actions IA atteinte pour le plan ${dbUser.plan}. Passez au plan supérieur !` },
+                { error: `Limite de ${limit} actions IA atteinte pour le plan ${planName}. Passez au plan supérieur !` },
                 { status: 403 }
             );
         }