feat: Integrate Data Connect and Implement Staff List View Directory

backend/dataconnect/example/user/mutations.gql

@@ -0,0 +1,45 @@
+mutation CreateUser(
+  $id: String!,              # Firebase UID
+  $email: String,
+  $fullName: String,
+  $role: UserBaseRole!,
+  $userRole: String,
+  $photoUrl: String
+) @auth(level: USER) {
+  user_insert(
+    data: {
+      id: $id
+      email: $email
+      fullName: $fullName
+      role: $role
+      userRole: $userRole
+      photoUrl: $photoUrl
+    }
+  ) 
+}
+
+mutation UpdateUser(
+  $id: String!,
+  $email: String,
+  $fullName: String,
+  $role: UserBaseRole,
+  $userRole: String,
+  $photoUrl: String
+) @auth(level: USER) {
+  user_update(
+    id: $id,
+    data: {
+      email: $email
+      fullName: $fullName
+      role: $role
+      userRole: $userRole
+      photoUrl: $photoUrl
+    }
+  ) 
+}
+
+mutation DeleteUser(
+  $id: String!
+) @auth(level: USER) {
+  user_delete(id: $id)
+}