phase-6: typescript introduction

ui/package-lock.json

@@ -11,6 +11,7 @@
         "@sveltejs/adapter-auto": "^3.0.0",
         "@sveltejs/kit": "^2.0.0",
         "@sveltejs/vite-plugin-svelte": "^4.0.0",
+        "@types/node": "^22.0.0",
         "sass": "^1.100.0",
         "svelte": "^5.0.0",
         "svelte-check": "^4.0.0",
@@ -1248,6 +1249,16 @@
       "integrity": "sha512-GhdPgy1el4/ImP05X05Uw4cw2/M93BCUmnEvWZNStlCzEKME4Fkk+YpoA5OiHNQmoS7Cafb8Xa3Pya8m1Qrzeg==",
       "dev": true
     },
+    "node_modules/@types/node": {
+      "version": "22.19.19",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-22.19.19.tgz",
+      "integrity": "sha512-dyh/xO2Fh5bYrfWaaqGrRQQGkNdmYw6AmaAUvYeUMNTWQtvb796ikLdmTchRmOlOiIJ1TDXfWgVx1QkUlQ6Hew==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "undici-types": "~6.21.0"
+      }
+    },
     "node_modules/@types/trusted-types": {
       "version": "2.0.7",
       "resolved": "https://registry.npmjs.org/@types/trusted-types/-/trusted-types-2.0.7.tgz",
@@ -1870,6 +1881,13 @@
         "node": ">=14.17"
       }
     },
+    "node_modules/undici-types": {
+      "version": "6.21.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.21.0.tgz",
+      "integrity": "sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/vite": {
       "version": "6.4.3",
       "resolved": "https://registry.npmjs.org/vite/-/vite-6.4.3.tgz",