Rewrite with modern stack

shared/package.json

@@ -0,0 +1,20 @@
+{
+  "name": "@gaplace/shared",
+  "version": "1.0.0",
+  "description": "Shared types and utilities for GaPlace",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
+  "scripts": {
+    "build": "tsc",
+    "dev": "tsc --watch",
+    "clean": "rm -rf dist",
+    "type-check": "tsc --noEmit",
+    "lint": "eslint src --ext .ts,.tsx"
+  },
+  "devDependencies": {
+    "typescript": "^5.3.3"
+  },
+  "peerDependencies": {
+    "typescript": "^5.0.0"
+  }
+}