Add ListToggle and built-in search filtering to ResourceControls, move Export/Clear buttons to HistoryListPanel

ResourceControls now manages its own search state internally and filters
all three accordion sections (URIs, Templates, Subscriptions) by name
and URI. Added ListToggle to expand/collapse all sections. Moved Export
JSON and Clear All buttons from HistoryControls sidebar to the
HistoryListPanel header for better proximity to the data they act on.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

clients/web/src/components/views/ConnectedView/ConnectedView.stories.tsx

@@ -447,8 +447,6 @@ export const ResourcesActive: Story = {
           isSubscribed: false,
         }}
         listChanged={true}
-        searchText=""
-        onSearchChange={fn()}
         onRefreshList={fn()}
         onSelectUri={fn()}
         onSelectTemplate={fn()}