feat: Initial Diabetix application commit

- Add authentication with NextAuth v5 (credentials + email verification)
- Implement dashboard with glycemia tracking and AI analysis
- Add PDF report generation for Premium users
- Implement Stripe integration for Premium subscriptions
- Add responsive UI with Tailwind CSS and shadcn components
- Database schema with Prisma ORM and PostgreSQL support
- Real-time glycemia visualization with Recharts
- Mobile-optimized entry form
- User profile management with medical information
- Subscription lifecycle management (create, cancel, webhook)
- Email notifications with Resend
- Feature gates for Free vs Premium plans

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

test-cancel-subscription.mjs

@@ -0,0 +1,69 @@
+import pkg from "@prisma/client";
+import bcrypt from "bcryptjs";
+
+const { PrismaClient } = pkg;
+
+const prisma = new PrismaClient();
+
+async function main() {
+  // Create or get a test user with PREMIUM plan
+  const testEmail = "test.premium@example.com";
+  const testPassword = "TestPassword123!";
+
+  // Check if user exists
+  let user = await prisma.user.findUnique({
+    where: { email: testEmail },
+  });
+
+  if (!user) {
+    const passwordHash = await bcrypt.hash(testPassword, 10);
+    user = await prisma.user.create({
+      data: {
+        email: testEmail,
+        name: "Test Premium User",
+        passwordHash,
+        plan: "PREMIUM",
+        emailVerified: new Date(),
+      },
+    });
+    console.log("Created test premium user:", user.email);
+  } else {
+    console.log("User already exists:", user.email);
+  }
+
+  // Create a test subscription
+  if (user.stripeId) {
+    console.log("User already has stripeId:", user.stripeId);
+  } else {
+    const user2 = await prisma.user.update({
+      where: { id: user.id },
+      data: {
+        stripeId: "cus_test_" + Date.now(),
+        subscription: {
+          create: {
+            stripeId: "sub_test_" + Date.now(),
+            stripePriceId: "price_test",
+            stripeCustomerId: "cus_test_" + Date.now(),
+            status: "active",
+            currentPeriodEnd: new Date(Date.now() + 30 * 24 * 60 * 60 * 1000),
+          },
+        },
+      },
+      include: { subscription: true },
+    });
+    console.log("Created subscription for user:", user2.email);
+  }
+
+  console.log("\nTest user credentials:");
+  console.log("Email:", testEmail);
+  console.log("Password:", testPassword);
+}
+
+main()
+  .catch((err) => {
+    console.error(err);
+    process.exit(1);
+  })
+  .finally(async () => {
+    await prisma.$disconnect();
+  });