chore(deps): upgrade Next/React ecosystem, sync lockfile, and add CI/docker configs

- bump next to 16.0.0, react/react-dom to 19.2.0 and update related deps (react-day-picker, react-hook-form, zod, lightningcss, scheduler, typescript, @types/*, tailwind tooling, etc.) in package.json and bun.lock
- add overrides for @types/react and @types/react-dom
- remove --turbopack flags from package.json scripts and configure turbopack root in next.config.ts
- tighten tsconfig (jsx -> react-jsx, include extra .next dev types, formatting)
- add GitHub Actions workflow for Docker build/push (.github/workflows/main.yml)
- add Dockerfile and compose.yml for building/running containerized app

next.config.ts

@@ -1,8 +1,12 @@
 import type { NextConfig } from "next";
+const path = require('path')
 
 const nextConfig: NextConfig = {
   /* config options here */
   allowedDevOrigins: ['imnyang.dev'],
+  turbopack: {
+    root: path.join(__dirname, '.'),
+  },
 };
 
 export default nextConfig;