fix: keep MCP servers collapsed on auto-test

Only auto-expand servers when user manually clicks Test button.
Auto-test on mount now keeps servers collapsed to avoid clutter
when there are many MCP servers configured.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/ui/src/components/views/settings-view/mcp-servers/mcp-servers-section.tsx

@@ -130,9 +130,9 @@ export function MCPServersSection() {
             connectionTime: result.connectionTime,
           },
         }));
-        // Auto-expand to show tools
-        setExpandedServers((prev) => new Set([...prev, server.id]));
+        // Only auto-expand on manual test, not on auto-test (silent)
         if (!silent) {
+          setExpandedServers((prev) => new Set([...prev, server.id]));
           toast.success(
             `Connected to ${server.name} (${result.tools?.length || 0} tools, ${result.connectionTime}ms)`
           );