feat: complete HookLab MVP - TikTok Shop coaching platform

Full-stack Next.js 15 application with:
- Landing page with marketing components (Hero, Testimonials, Pricing, FAQ)
- Multi-step candidature form with API route
- Stripe Checkout integration (subscription + webhooks)
- Supabase Auth (login/register) with middleware protection
- Dashboard with progress tracking and module system
- Formations pages with completion tracking
- Profile management with password change
- Database schema with RLS policies
- Resend email integration for transactional emails

Stack: Next.js 15, TypeScript, Tailwind CSS v4, Supabase, Stripe, Resend

https://claude.ai/code/session_01H2aRGDaKgarPvhay2HxN6Y

lib/supabase/server.ts

@@ -0,0 +1,45 @@
+import { createServerClient } from "@supabase/ssr";
+import { cookies } from "next/headers";
+import type { Database } from "@/types/database.types";
+
+// Client Supabase côté serveur (Server Components, Route Handlers)
+export const createClient = async () => {
+  const cookieStore = await cookies();
+
+  return createServerClient<Database>(
+    process.env.NEXT_PUBLIC_SUPABASE_URL!,
+    process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY!,
+    {
+      cookies: {
+        getAll() {
+          return cookieStore.getAll();
+        },
+        setAll(cookiesToSet) {
+          try {
+            cookiesToSet.forEach(({ name, value, options }) =>
+              cookieStore.set(name, value, options)
+            );
+          } catch {
+            // Ignore en Server Component (lecture seule)
+          }
+        },
+      },
+    }
+  );
+};
+
+// Client admin avec service role (webhooks, opérations admin)
+export const createAdminClient = () => {
+  return createServerClient<Database>(
+    process.env.NEXT_PUBLIC_SUPABASE_URL!,
+    process.env.SUPABASE_SERVICE_ROLE_KEY!,
+    {
+      cookies: {
+        getAll() {
+          return [];
+        },
+        setAll() {},
+      },
+    }
+  );
+};