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>

prisma/migrations/20260426084121_init/migration.sql

@@ -0,0 +1,12 @@
+-- CreateTable
+CREATE TABLE "Reading" (
+    "id" INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
+    "measuredAt" DATETIME NOT NULL,
+    "moment" TEXT NOT NULL,
+    "value" REAL NOT NULL,
+    "notes" TEXT,
+    "createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+
+-- CreateIndex
+CREATE INDEX "Reading_measuredAt_idx" ON "Reading"("measuredAt");