Fix search auto-selecting wrong item before programs finish loading (#2451)

fix: defer auto-select until programs loaded to prevent wrong search result selection

When search results refresh mid-collection, OnRefresh auto-selects the
first result item. If programs haven't loaded yet, Settings category
appears first and gets selected. If user hits Enter in that window,
wrong item launches.

Skip auto-select when search is still in progress and no programs
have been found yet. Next refresh after programs load will select
correctly.

Fixes #456
Fixes #1982
Fixes #4

> 🤖 Generated with [Claude Code](https://claude.ai/code)

Co-authored-by: Claude <noreply@anthropic.com>

Author: nnyj

Src/StartMenu/StartMenuDLL/MenuContainer.cpp

@@ -6366,7 +6366,10 @@ LRESULT CMenuContainer::OnRefresh( UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL
 					}
 				}
 				else if (m_Items[m_OriginalCount].id==MENU_SEARCH_CATEGORY)
-					hotItem=m_OriginalCount+1;
+				{
+					if (!bSearching || !s_SearchResults.programs.empty())
+						hotItem=m_OriginalCount+1;
+				}
 			}
 			else
 				hotItem=-1;