Improvements (#379)

* Improvements

- Fix button visibility in reports on light theme
- Unify logic for provider syncs
- Add default option is to skip accounts linking ( no op default )

* Stability fixes and UX improvements

* FIX add unlinking when deleting lunch flow connection as well

* Wrap updates in transaction

* Some more improvements

* FIX proper provider setup check

* Make provider section collapsible

* Fix balance calculation

* Restore focus ring

* Use browser default focus

* Fix lunch flow balance for credit cards

app/models/lunchflow_item/unlinking.rb

@@ -0,0 +1,50 @@
+# frozen_string_literal: true
+
+module LunchflowItem::Unlinking
+  # Concern that encapsulates unlinking logic for a Lunchflow item.
+  # Mirrors the SimplefinItem::Unlinking behavior.
+  extend ActiveSupport::Concern
+
+  # Idempotently remove all connections between this Lunchflow item and local accounts.
+  # - Detaches any AccountProvider links for each LunchflowAccount
+  # - Detaches Holdings that point at the AccountProvider links
+  # Returns a per-account result payload for observability
+  def unlink_all!(dry_run: false)
+    results = []
+
+    lunchflow_accounts.find_each do |lfa|
+      links = AccountProvider.where(provider_type: "LunchflowAccount", provider_id: lfa.id).to_a
+      link_ids = links.map(&:id)
+      result = {
+        lfa_id: lfa.id,
+        name: lfa.name,
+        provider_link_ids: link_ids
+      }
+      results << result
+
+      next if dry_run
+
+      begin
+        ActiveRecord::Base.transaction do
+          # Detach holdings for any provider links found
+          if link_ids.any?
+            Holding.where(account_provider_id: link_ids).update_all(account_provider_id: nil)
+          end
+
+          # Destroy all provider links
+          links.each do |ap|
+            ap.destroy!
+          end
+        end
+      rescue => e
+        Rails.logger.warn(
+          "LunchflowItem Unlinker: failed to fully unlink LFA ##{lfa.id} (links=#{link_ids.inspect}): #{e.class} - #{e.message}"
+        )
+        # Record error for observability; continue with other accounts
+        result[:error] = e.message
+      end
+    end
+
+    results
+  end
+end