- Handle blank series in trend method to avoid nil errors (#357)

- Add Turbo Stream rendering for SimpleFIN items to address missing content
- Update dashboard view to render correctly when trend data is unavailable

Co-authored-by: Josh Waldrep <joshua.waldrep5+github@gmail.com>

app/controllers/simplefin_items_controller.rb

@@ -515,6 +515,17 @@ class SimplefinItemsController < ApplicationController
         @simplefin_item = Current.family.simplefin_items.build(setup_token: setup_token)
       end
       @error_message = message
-      render context, status: :unprocessable_entity
+
+      if turbo_frame_request?
+        # Re-render the SimpleFIN providers panel in place to avoid "Content missing"
+        @simplefin_items = Current.family.simplefin_items.ordered
+        render turbo_stream: turbo_stream.replace(
+          "simplefin-providers-panel",
+          partial: "settings/providers/simplefin_panel",
+          locals: { simplefin_items: @simplefin_items }
+        ), status: :unprocessable_entity
+      else
+        render context, status: :unprocessable_entity
+      end
     end
 end