Add typescript dev dependency

package-lock.json

@@ -13,7 +13,8 @@
         "html-entities": "^2.4.0",
         "ics": "^3.4.0",
         "node-html-parser": "^6.1.9",
-        "tsx": "^4.19.2"
+        "tsx": "^4.19.2",
+        "typescript": "^5.7.3"
       }
     },
     "node_modules/@esbuild/aix-ppc64": {
@@ -738,6 +739,20 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/typescript": {
+      "version": "5.7.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.7.3.tgz",
+      "integrity": "sha512-84MVSjMEHP+FQRPy3pX9sTVV/INIex71s9TL2Gm5FG/WG1SqXeKyZ0k7/blY/4FdOzI12CBy1vGc4og/eus0fw==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "bin": {
+        "tsc": "bin/tsc",
+        "tsserver": "bin/tsserver"
+      },
+      "engines": {
+        "node": ">=14.17"
+      }
+    },
     "node_modules/undici-types": {
       "version": "6.20.0",
       "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.20.0.tgz",