chore: add tsup.config.ts and watch command (#7)

Author: yusukebe

package.json

@@ -5,7 +5,8 @@
   "scripts": {
     "test": "npm run test:e2e",
     "test:e2e": "npm run test:e2e -w example",
-    "build": "tsup --dts --format esm --external ../server,'virtual:remix/server-build',hono,@remix-run/cloudflare,vite src/vite-plugin.ts src/dev.ts src/cloudflare-pages.ts",
+    "build": "tsup",
+    "watch": "tsup --watch",
     "lint": "eslint src example/app example/server",
     "lint:fix": "eslint src example/app example/server --fix",
     "publint": "publint",
@@ -61,4 +62,4 @@
     "@remix-run/cloudflare": "^2.11.2",
     "remix-hono": "^0.0.16"
   }
-}
+}

tsup.config.ts

@@ -0,0 +1,8 @@
+import { defineConfig } from 'tsup'
+
+export default defineConfig({
+  entry: ['src/vite-plugin.ts', 'src/dev.ts', 'src/cloudflare-pages.ts'],
+  external: ['../server', 'virtual:remix/server-build', 'hono', '@remix-run/cloudflare', 'vite'],
+  format: 'esm',
+  dts: true,
+})