Fix WinWorldPC suggestion ranking to prioritize exact matches

Platform/genre/company suggestion lists in AdminWwpcImportReviewViewModel
sorted alphabetically after substring filtering, which could push an
exact match (e.g. "Windows") off the visible list when many other
entries shared the same prefix. Now exact matches rank first, followed
by Jaro-Winkler similarity, then alphabetical order.

Marechai.App/Presentation/ViewModels/Admin/AdminWwpcImportReviewViewModel.cs

@@ -12,6 +12,7 @@ using Marechai.App.Presentation.Views.Admin;
 using Marechai.App.Services;
 using Marechai.App.Services.Authentication;
 using Marechai.Data;
+using Marechai.Data.Helpers;
 
 namespace Marechai.App.Presentation.ViewModels.Admin;
 
@@ -174,16 +175,25 @@ public partial class AdminWwpcImportReviewViewModel : ObservableObject, IRegionA
         return "https://winworldpc.com" + (url.StartsWith('/') ? url : "/" + url);
     }
 
+    static IEnumerable<T> RankByQuery<T>(IEnumerable<T> source, string query, Func<T, string> nameSelector)
+    {
+        if(string.IsNullOrWhiteSpace(query))
+            return source.OrderBy(nameSelector);
+
+        return source.Where(i => (nameSelector(i) ?? string.Empty).Contains(query, StringComparison.OrdinalIgnoreCase))
+                     .OrderByDescending(i => string.Equals(nameSelector(i), query, StringComparison.OrdinalIgnoreCase))
+                     .ThenByDescending(i => JaroWinkler.Similarity(query, nameSelector(i) ?? string.Empty))
+                     .ThenBy(nameSelector);
+    }
+
     public void UpdateGenreSuggestions(string query)
     {
         GenreSuggestions.Clear();
 
         IEnumerable<SoftwareGenreDto> source = _allGenres.Where(g => g.Type == (int)SoftwareGenreType.Category &&
                                                                       !SelectedGenres.Any(selected => selected.Id == g.Id));
-        if(!string.IsNullOrWhiteSpace(query))
-            source = source.Where(g => (g.Name ?? string.Empty).Contains(query, StringComparison.OrdinalIgnoreCase));
 
-        foreach(SoftwareGenreDto genre in source.OrderBy(g => g.Name).Take(30))
+        foreach(SoftwareGenreDto genre in RankByQuery(source, query, g => g.Name ?? string.Empty).Take(30))
             GenreSuggestions.Add(genre);
     }
 
@@ -191,11 +201,7 @@ public partial class AdminWwpcImportReviewViewModel : ObservableObject, IRegionA
     {
         CompanySuggestions.Clear();
 
-        IEnumerable<CompanyDto> source = _allCompanies;
-        if(!string.IsNullOrWhiteSpace(query))
-            source = source.Where(c => (c.Name ?? string.Empty).Contains(query, StringComparison.OrdinalIgnoreCase));
-
-        foreach(CompanyDto company in source.OrderBy(c => c.Name).Take(30))
+        foreach(CompanyDto company in RankByQuery(_allCompanies, query, c => c.Name ?? string.Empty).Take(30))
             CompanySuggestions.Add(company);
     }
 
@@ -203,11 +209,7 @@ public partial class AdminWwpcImportReviewViewModel : ObservableObject, IRegionA
     {
         PlatformSuggestions.Clear();
 
-        IEnumerable<SoftwarePlatformDto> source = _allPlatforms;
-        if(!string.IsNullOrWhiteSpace(query))
-            source = source.Where(p => (p.Name ?? string.Empty).Contains(query, StringComparison.OrdinalIgnoreCase));
-
-        foreach(SoftwarePlatformDto platform in source.OrderBy(p => p.Name).Take(30))
+        foreach(SoftwarePlatformDto platform in RankByQuery(_allPlatforms, query, p => p.Name ?? string.Empty).Take(30))
             PlatformSuggestions.Add(platform);
     }