Remove startup migration and runtime frontend rewrites

Program.cs

@@ -146,7 +146,6 @@ var basePath = builder.Configuration["BasePath"];
 if (!string.IsNullOrWhiteSpace(basePath))
 {
     app.UsePathBase(basePath);
-    UpdateIndexMetaBase(app.Environment, basePath);
 }
 
 app.UseGlobalExceptionLogging();
@@ -154,13 +153,6 @@ app.UseAuthentication();
 app.UseMiddleware<EnsurePlayerExistsMiddleware>();
 app.UseAuthorization();
 
-// Ensure database and migrations are applied on startup
-using (var scope = app.Services.CreateScope())
-{
-    var db = scope.ServiceProvider.GetRequiredService<AppDbContext>();
-    db.Database.Migrate();
-}
-
 app.UseDefaultFiles();
 app.UseStaticFiles();
 
@@ -274,42 +266,4 @@ static Task WriteUnauthorizedChallengeAsync(HttpContext context)
     return context.Response.WriteAsJsonAsync(problem);
 }
 
-static void UpdateIndexMetaBase(IWebHostEnvironment env, string basePath)
-{
-    try
-    {
-        var indexPath = Path.Combine(env.WebRootPath, "index.html");
-        if (!File.Exists(indexPath))
-            return;
-
-        var text = File.ReadAllText(indexPath);
-        var marker = "name=\"app-base\"";
-        var contentKey = "content=\"";
-        var markerIndex = text.IndexOf(marker, StringComparison.OrdinalIgnoreCase);
-        if (markerIndex < 0)
-            return;
-
-        var contentIndex = text.IndexOf(contentKey, markerIndex, StringComparison.OrdinalIgnoreCase);
-        if (contentIndex < 0)
-            return;
-
-        var valueStart = contentIndex + contentKey.Length;
-        var valueEnd = text.IndexOf('"', valueStart);
-        if (valueEnd < 0)
-            return;
-
-        var current = text[valueStart..valueEnd];
-        var normalized = basePath.EndsWith('/') ? basePath.TrimEnd('/') : basePath;
-        if (current == normalized)
-            return;
-
-        var updated = text[..valueStart] + normalized + text[valueEnd..];
-        File.WriteAllText(indexPath, updated);
-    }
-    catch
-    {
-        // If we can't rewrite, continue; frontend can still be set manually.
-    }
-}
-
 public partial class Program;