feat(web): add PocketBase backend with migrations and database

web/backend/pb_migrations/1759313082_updated_users.js

@@ -0,0 +1,34 @@
+/// <reference path="../pb_data/types.d.ts" />
+migrate((app) => {
+  const collection = app.findCollectionByNameOrId("_pb_users_auth_")
+
+  // update collection data
+  unmarshal({
+    "updateRule": "id = @request.auth.id && (@request.body.admin = null || @request.body.admin = admin)"
+  }, collection)
+
+  // add field
+  collection.fields.addAt(8, new Field({
+    "hidden": false,
+    "id": "bool2282622326",
+    "name": "admin",
+    "presentable": true,
+    "required": false,
+    "system": false,
+    "type": "bool"
+  }))
+
+  return app.save(collection)
+}, (app) => {
+  const collection = app.findCollectionByNameOrId("_pb_users_auth_")
+
+  // update collection data
+  unmarshal({
+    "updateRule": "id = @request.auth.id"
+  }, collection)
+
+  // remove field
+  collection.fields.removeById("bool2282622326")
+
+  return app.save(collection)
+})