feat(F-001): scaffold Next.js 15 project with TypeScript and Tailwind

- Initialize Next.js 15 with App Router and TypeScript strict mode
- Configure Tailwind CSS with shadcn/ui theme system
- Install shadcn/ui components (button, card, input, table, etc.)
- Set up ESLint and Prettier with automatic formatting
- Configure path aliases (@/*) in tsconfig.json
- Create full project structure per CLAUDE.md
- Add health check endpoint at /api/health
- Configure next.config.ts with output: 'standalone' for Docker
- Set up Prisma with placeholder schema
- Configure Vitest (unit) and Playwright (E2E) testing
- Add VS Code settings for consistent development experience

Build verification: TypeScript compilation, ESLint, and production build all pass.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

prisma/schema.prisma

@@ -0,0 +1,19 @@
+// Prisma schema for Vorteq Quest Portal
+// PostgreSQL 16 database
+
+generator client {
+  provider = "prisma-client-js"
+}
+
+datasource db {
+  provider = "postgresql"
+  url      = env("DATABASE_URL")
+}
+
+// Placeholder - full schema will be created in F-003, F-004, F-005
+// This minimal schema allows Prisma client to be generated
+
+model placeholder {
+  id         String   @id @default(cuid())
+  created_at DateTime @default(now())
+}

prisma/seed.ts

@@ -0,0 +1,21 @@
+import { PrismaClient } from '@prisma/client';
+
+const prisma = new PrismaClient();
+
+async function main() {
+  console.log('Seeding database...');
+
+  // Seed data will be added as schemas are created in F-003, F-004, F-005
+
+  console.log('Seeding complete!');
+}
+
+main()
+  .then(async () => {
+    await prisma.$disconnect();
+  })
+  .catch(async (e) => {
+    console.error(e);
+    await prisma.$disconnect();
+    process.exit(1);
+  });