Implement error handling and logging for sparkline and series methods

- Added rescue blocks to handle exceptions in the Accounts and AccountableSparklines controllers, logging errors and rendering error partials.
- Enhanced error handling in the Account::Chartable and Balance::ChartSeriesBuilder models, logging specific error messages for series generation failures.
- Updated the accounts view to include a timeout for Turbo frame loading.
- Added a test to ensure graceful handling of sparkline errors in the AccountsController.

In reference to bug #2315

test/controllers/accounts_controller_test.rb

@@ -6,13 +6,32 @@ class AccountsControllerTest < ActionDispatch::IntegrationTest
     @account = accounts(:depository)
   end
 
-  test "new" do
-    get new_account_path
-    assert_response :ok
+  test "should get index" do
+    get accounts_url
+    assert_response :success
   end
 
-  test "can sync an account" do
-    post sync_account_path(@account)
-    assert_redirected_to account_path(@account)
+  test "should sync account" do
+    post sync_account_url(@account)
+    assert_redirected_to account_url(@account)
+  end
+
+  test "should get chart" do
+    get chart_account_url(@account)
+    assert_response :success
+  end
+
+  test "should get sparkline" do
+    get sparkline_account_url(@account)
+    assert_response :success
+  end
+
+  test "should handle sparkline errors gracefully" do
+    # Mock an error in the sparkline_series method
+    @account.stubs(:sparkline_series).raises(StandardError.new("Test error"))
+
+    get sparkline_account_url(@account)
+    assert_response :success
+    assert_match /Error/, response.body
   end
 end