Inline ListChangedIndicator with titles, normalize screen gaps, and rename ResultPanel to ToolResultPanel

- Place ListChangedIndicator on same line as section titles using Group with space-between in ToolControls, ResourceControls, and PromptControls
- Add ListChanged stories for ResourceControls and show indicators in ConnectedView stories
- Normalize ScreenLayout gap from "xl" to "md" across all screens for consistent spacing
- Rename ResultPanel to ToolResultPanel (component, interface, files, and stories)
- Replace Grid layout in ToolsScreen with equal-width flex children for detail and result panels

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

clients/web/src/components/screens/ToolsScreen/ToolsScreen.stories.tsx

@@ -3,7 +3,7 @@ import { fn } from "storybook/test";
 import { ToolsScreen } from "./ToolsScreen";
 import type { ToolListItemProps } from "../../groups/ToolListItem/ToolListItem";
 import type { ToolDetailPanelProps } from "../../groups/ToolDetailPanel/ToolDetailPanel";
-import type { ResultPanelProps } from "../../groups/ResultPanel/ResultPanel";
+import type { ToolResultPanelProps } from "../../groups/ToolResultPanel/ToolResultPanel";
 
 const meta: Meta<typeof ToolsScreen> = {
   title: "Screens/ToolsScreen",
@@ -67,7 +67,7 @@ const selectedToolData: ToolDetailPanelProps = {
   onCancel: fn(),
 };
 
-const resultData: ResultPanelProps = {
+const resultData: ToolResultPanelProps = {
   content: [
     {
       type: "text",