api entities

www/.prettierrc.json

@@ -0,0 +1,5 @@
+{
+  "semi": true,
+  "trailingComma": "all",
+  "singleQuote": true
+}

www/tsconfig.json

@@ -2,6 +2,7 @@
   "extends": "@tsconfig/svelte/tsconfig.json",
   "compilerOptions": {
     "sourceMap": false,
+    "strictNullChecks": true,
     "paths": {
       "@core": ["../core/src"]
     }