feat: initialize Next.js project with database schema

- Set up Next.js with App Router, TypeScript, Tailwind CSS
- Configure shadcn/ui with dark theme
- Install dependencies: lightweight-charts, papaparse, lucide-react
- Set up Drizzle ORM with better-sqlite3
- Create database schema for candles and annotations tables
- Generate migration SQL

.gitignore

@@ -1 +1,10 @@
 .claude
+node_modules
+.next
+dist
+build
+*.log
+.env*.local
+.DS_Store
+data/
+drizzle/