[TS] Initial Typescript fix

tsconfig.server.json

@@ -0,0 +1,19 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "target": "esnext",
+    "module": "esnext",
+    "moduleResolution": "bundler",
+    "allowJs": true,
+    "esModuleInterop": true,
+    "allowImportingTsExtensions": false,
+    "isolatedModules": true,
+    "noEmit": false,
+    "resolveJsonModule": true,
+    "outDir": "./build/server",
+    "strict": true,
+    "strictPropertyInitialization": false
+  },
+  "include": ["lib", "lib/**/*.ts"],
+  "exclude": ["src", "node_modules", "old-updater"]
+}