add backend

tina/config.ts

@@ -1,10 +1,9 @@
 import { defineConfig } from "tinacms";
+import { UsernamePasswordAuthJSProvider, TinaUserCollection } from "tinacms-authjs/dist/tinacms";
 
-// Your TinaCMS configuration
 export default defineConfig({
-  branch: process.env.TINA_BRANCH || "main",
-  clientId: process.env.TINA_CLIENT_ID || "",
-  token: process.env.TINA_TOKEN || "",
+  contentApiUrlOverride: "/api/tina/gql",
+  authProvider: new UsernamePasswordAuthJSProvider(),
 
   build: {
     outputFolder: "admin",
@@ -19,6 +18,7 @@ export default defineConfig({
   },
   schema: {
     collections: [
+      TinaUserCollection,
       {
         name: "post",
         label: "Blog Posts",