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>

TASKS.md

@@ -10,14 +10,14 @@
 ## Phase 1: Foundation (Est. 30-40 hrs)
 
 ### F-001: Project Scaffold
-- [ ] Initialize Next.js 15 with App Router, TypeScript strict mode
-- [ ] Install and configure Tailwind CSS
-- [ ] Install and configure shadcn/ui (default theme)
-- [ ] Configure ESLint + Prettier
-- [ ] Configure `tsconfig.json` with path aliases (`@/`)
-- [ ] Create base project structure per CLAUDE.md
-- [ ] Create `.dockerignore` for build optimization
-- **Deps:** None | **Est:** 2 hrs
+- [x] Initialize Next.js 15 with App Router, TypeScript strict mode
+- [x] Install and configure Tailwind CSS
+- [x] Install and configure shadcn/ui (default theme)
+- [x] Configure ESLint + Prettier
+- [x] Configure `tsconfig.json` with path aliases (`@/`)
+- [x] Create base project structure per CLAUDE.md
+- [x] Create `.dockerignore` for build optimization
+- **Deps:** None | **Est:** 2 hrs | **Status:** ✅ Complete
 
 ### F-002: Docker & Infrastructure Alignment
 - [x] `Dockerfile` for Next.js app (Node.js 22, multi-stage build)
@@ -26,9 +26,9 @@
 - [x] `.env.example` with all required variables
 - [x] `init-databases.sh` for multi-database PostgreSQL setup
 - [x] `setup.sh` for server provisioning
-- [ ] Health check endpoints in Next.js app (`/api/health`)
-- [ ] Verify `next.config.js` has `output: 'standalone'` for Docker
-- **Deps:** F-001 | **Est:** 1 hr (remaining)
+- [x] Health check endpoints in Next.js app (`/api/health`)
+- [x] Verify `next.config.js` has `output: 'standalone'` for Docker
+- **Deps:** F-001 | **Est:** 1 hr (remaining) | **Status:** ✅ Complete
 
 ### F-003: Prisma Schema - Auth Domain
 - [ ] `auth_user` table (email, password hash, deactivated, verified, login counts, 2FA, SSO fields)