Initial project setup for PhaseFlow

Set up Next.js 16 project with TypeScript for a training decision app
that integrates menstrual cycle phases with Garmin biometrics for
Hashimoto's thyroiditis management.

Stack: Next.js 16, React 19, Tailwind/shadcn, PocketBase, Drizzle,
Zod, Resend, Vitest, Biome, Lefthook, Nix dev environment.

Includes:
- 7 page routes (dashboard, login, settings, calendar, history, plan)
- 12 API endpoints (garmin, user, cycle, calendar, overrides, cron)
- Core lib utilities (decision engine, cycle phases, nutrition, ICS)
- Type definitions and component scaffolding
- Python script for Garmin token bootstrapping
- Initial unit tests for cycle utilities

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

package.json

@@ -0,0 +1,46 @@
+{
+  "name": "phaseflow",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "dev": "next dev",
+    "build": "next build",
+    "start": "next start",
+    "lint": "biome check .",
+    "lint:fix": "biome check --write .",
+    "test": "vitest",
+    "test:run": "vitest run"
+  },
+  "dependencies": {
+    "class-variance-authority": "^0.7.1",
+    "clsx": "^2.1.1",
+    "drizzle-orm": "^0.45.1",
+    "ics": "^3.8.1",
+    "lucide-react": "^0.562.0",
+    "next": "16.1.1",
+    "node-cron": "^4.2.1",
+    "pocketbase": "^0.26.5",
+    "react": "19.2.3",
+    "react-dom": "19.2.3",
+    "resend": "^6.7.0",
+    "tailwind-merge": "^3.4.0",
+    "zod": "^4.3.5"
+  },
+  "devDependencies": {
+    "@biomejs/biome": "2.3.11",
+    "@tailwindcss/postcss": "^4",
+    "@testing-library/dom": "^10.4.1",
+    "@testing-library/react": "^16.3.1",
+    "@types/node": "^20",
+    "@types/node-cron": "^3.0.11",
+    "@types/react": "^19",
+    "@types/react-dom": "^19",
+    "@vitejs/plugin-react": "^5.1.2",
+    "drizzle-kit": "^0.31.8",
+    "jsdom": "^27.4.0",
+    "tailwindcss": "^4",
+    "tw-animate-css": "^1.4.0",
+    "typescript": "^5",
+    "vitest": "^4.0.16"
+  }
+}