feat: Integrate Data Connect and Implement Staff List View Directory

backend/dataconnect/example/category/mutations.gql

@@ -0,0 +1,34 @@
+mutation createCategory(
+  $categoryId: String!
+  $label: String!
+  $icon: String
+) @auth(level: USER) {
+  category_insert(
+    data: {
+      categoryId: $categoryId
+      label: $label
+      icon: $icon
+    }
+  ) 
+}
+
+mutation updateCategory(
+  $id: UUID!
+  $categoryId: String
+  $label: String
+  $icon: String
+) @auth(level: USER) {
+  category_update(
+    id: $id
+    data: {
+      categoryId: $categoryId
+      label: $label
+      icon: $icon
+    }
+  ) 
+}
+
+
+mutation deleteCategory($id: UUID!) @auth(level: USER) {
+  category_delete(id: $id) 
+}