feat: initial commit — Curio mastery tutor

Full Next.js App Router application with:
- AI-graded lesson checkpoints (BKT/Elo mastery tracking)
- Auth.js v5: credentials, Google, GitHub, generic OIDC
- Anonymous-session-first with migrate-on-signin
- Admin panel: users, blueprints, reports, site settings
- Password reset + email verification (nodemailer/SMTP)
- Site config: require_auth + signups_enabled flags
- server-only guards on all DB/generation/verification modules
- PostgreSQL 16 + pgvector, Redis cache, Drizzle ORM
- 271 unit tests (Vitest), golden-eval harness, Playwright e2e stubs

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

package.json

@@ -0,0 +1,75 @@
+{
+  "name": "curio",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "dev": "next dev",
+    "build": "next build",
+    "start": "next start",
+    "lint": "next lint",
+    "format": "prettier --write .",
+    "test": "vitest run",
+    "test:watch": "vitest",
+    "test:e2e": "playwright test",
+    "drizzle-kit": "drizzle-kit",
+    "db:generate": "dotenv -e .env.local -- drizzle-kit generate",
+    "db:migrate": "dotenv -e .env.local -- drizzle-kit migrate",
+    "db:studio": "dotenv -e .env.local -- drizzle-kit studio",
+    "seed": "tsx --env-file=.env.local scripts/seed.ts",
+    "test:golden": "tsx --env-file=.env.local tests/golden/run-grading-eval.ts",
+    "test:golden:misconceptions": "tsx --env-file=.env.local tests/golden/run-misconception-eval.ts",
+    "test:golden:content": "tsx --env-file=.env.local tests/golden/run-content-eval.ts",
+    "workers": "tsx --env-file=.env.local jobs/index.ts"
+  },
+  "dependencies": {
+    "@ai-sdk/amazon-bedrock": "^4.0.119",
+    "@ai-sdk/anthropic": "^1.0.0",
+    "@ai-sdk/azure": "^3.0.76",
+    "@ai-sdk/cohere": "^3.0.39",
+    "@ai-sdk/google": "^3.0.83",
+    "@ai-sdk/groq": "^3.0.42",
+    "@ai-sdk/mistral": "^3.0.40",
+    "@ai-sdk/openai": "^1.0.0",
+    "@ai-sdk/provider": "^1.0.0",
+    "@ai-sdk/xai": "^3.0.96",
+    "@auth/drizzle-adapter": "^1.11.2",
+    "@upstash/ratelimit": "^2.0.8",
+    "@upstash/redis": "^1.38.0",
+    "ai": "^4.3.0",
+    "bcryptjs": "^3.0.3",
+    "bullmq": "^5.79.0",
+    "drizzle-orm": "^0.40.0",
+    "ioredis": "^5.4.0",
+    "langfuse": "^3.0.0",
+    "next": "^15.3.0",
+    "next-auth": "5.0.0-beta.31",
+    "nodemailer": "^9.0.1",
+    "ollama-ai-provider": "^1.2.0",
+    "pg": "^8.13.0",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
+    "server-only": "^0.0.1",
+    "zod": "^3.24.0"
+  },
+  "devDependencies": {
+    "@playwright/test": "^1.49.0",
+    "@tailwindcss/postcss": "^4.1.0",
+    "@types/bcryptjs": "^3.0.0",
+    "@types/node": "^22.0.0",
+    "@types/nodemailer": "^8.0.1",
+    "@types/pg": "^8.11.0",
+    "@types/react": "^19.0.0",
+    "@types/react-dom": "^19.0.0",
+    "@vitejs/plugin-react": "^4.4.0",
+    "dotenv": "^16.4.0",
+    "dotenv-cli": "^11.0.0",
+    "drizzle-kit": "^0.30.0",
+    "eslint": "^9.0.0",
+    "eslint-config-next": "^15.3.0",
+    "prettier": "^3.5.0",
+    "tailwindcss": "^4.1.0",
+    "tsx": "^4.19.0",
+    "typescript": "^5.8.0",
+    "vitest": "^3.1.0"
+  }
+}