Fix rubocop linting issues in API chat endpoints

- Fix trailing whitespace
- Add missing final newlines
- Fix array bracket spacing
- Auto-corrected all layout issues

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

test/controllers/api/v1/messages_controller_test.rb

@@ -6,19 +6,19 @@ class Api::V1::MessagesControllerTest < ActionDispatch::IntegrationTest
   setup do
     @user = users(:family_admin)
     @user.update!(ai_enabled: true)
-    
+
     @oauth_app = Doorkeeper::Application.create!(
       name: "Test API App",
       redirect_uri: "https://example.com/callback",
       scopes: "read write read_write"
     )
-    
+
     @write_token = Doorkeeper::AccessToken.create!(
       application: @oauth_app,
       resource_owner_id: @user.id,
       scopes: "read_write"
     )
-    
+
     @chat = chats(:one)
   end
 
@@ -26,30 +26,30 @@ class Api::V1::MessagesControllerTest < ActionDispatch::IntegrationTest
     post "/api/v1/chats/#{@chat.id}/messages"
     assert_response :unauthorized
   end
-  
+
   test "should require AI to be enabled" do
     @user.update!(ai_enabled: false)
-    
+
     post "/api/v1/chats/#{@chat.id}/messages",
       params: { content: "Hello" },
       headers: bearer_auth_header(@write_token)
     assert_response :forbidden
   end
-  
+
   test "should create message with write scope" do
     assert_difference "Message.count" do
       post "/api/v1/chats/#{@chat.id}/messages",
         params: { content: "Test message", model: "gpt-4" },
         headers: bearer_auth_header(@write_token)
     end
-    
+
     assert_response :created
     response_body = JSON.parse(response.body)
     assert_equal "Test message", response_body["content"]
     assert_equal "user_message", response_body["type"]
     assert_equal "pending", response_body["ai_response_status"]
   end
-  
+
   test "should enqueue assistant response job" do
     assert_enqueued_with(job: AssistantResponseJob) do
       post "/api/v1/chats/#{@chat.id}/messages",
@@ -57,55 +57,55 @@ class Api::V1::MessagesControllerTest < ActionDispatch::IntegrationTest
         headers: bearer_auth_header(@write_token)
     end
   end
-  
+
   test "should retry last assistant message" do
     skip "Retry functionality needs debugging"
-    
+
     # Create an assistant message to retry
     assistant_message = @chat.messages.create!(
       type: "AssistantMessage",
       content: "Previous response",
       ai_model: "gpt-4"
     )
-    
+
     assert_enqueued_with(job: AssistantResponseJob) do
       post "/api/v1/chats/#{@chat.id}/messages/retry",
         headers: bearer_auth_header(@write_token)
     end
-    
+
     assert_response :accepted
     response_body = JSON.parse(response.body)
     assert response_body["message_id"].present?
   end
-  
+
   test "should not retry if no assistant message exists" do
     # Remove all assistant messages
     @chat.messages.where(type: "AssistantMessage").destroy_all
-    
+
     post "/api/v1/chats/#{@chat.id}/messages/retry.json",
       headers: bearer_auth_header(@write_token)
-      
+
     assert_response :unprocessable_entity
     response_body = JSON.parse(response.body)
     assert_equal "No assistant message to retry", response_body["error"]
   end
-  
+
   test "should not access messages in other user's chat" do
     other_user = users(:family_member)
     other_user.update!(family: families(:empty))
     other_chat = chats(:two)
     other_chat.update!(user: other_user)
-    
+
     post "/api/v1/chats/#{other_chat.id}/messages",
       params: { content: "Test" },
       headers: bearer_auth_header(@write_token)
-      
+
     assert_response :not_found
   end
-  
+
   private
-  
+
     def bearer_auth_header(token)
       { "Authorization" => "Bearer #{token.token}" }
     end
-end
+end