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/groups/PromptArgumentsForm/PromptArgumentsForm.tsx

@@ -25,7 +25,6 @@ function formatPlaceholder(name: string): string {
 }
 
 export function PromptArgumentsForm({
-  name,
   description,
   arguments: promptArguments,
   argumentValues,
@@ -34,7 +33,7 @@ export function PromptArgumentsForm({
 }: PromptArgumentsFormProps) {
   return (
     <Stack gap="md">
-      <Title order={4}>{name}</Title>
+      <Title order={4}>Prompt Arguments</Title>
       {description && <DescriptionText>{description}</DescriptionText>}
       {promptArguments.length > 0 && (
         <Stack gap="sm">