Server now silently fails with no PostgreSQL

Chrono/Server/Program.cs

@@ -10,15 +10,30 @@ builder.Services.AddRazorPages();
 
 var connectionString = builder.Configuration.GetConnectionString("DefaultConnection");
 builder.Services.AddDbContext<AppDbContext>(options =>
-    options.UseNpgsql(connectionString));
+{
+    if (!string.IsNullOrEmpty(connectionString))
+    {
+        options.UseNpgsql(connectionString);
+    }
+});
 
 var app = builder.Build();
 
 // Apply migrations
 using (var scope = app.Services.CreateScope())
 {
-    var db = scope.ServiceProvider.GetRequiredService<AppDbContext>();
-    db.Database.Migrate();
+    try
+    {
+        var db = scope.ServiceProvider.GetRequiredService<AppDbContext>();
+        if (!string.IsNullOrEmpty(connectionString))
+        {
+            db.Database.Migrate();
+        }
+    }
+    catch (Exception ex)
+    {
+        Console.WriteLine($"[WARNING] Database migration failed: {ex.Message}. The application will continue without a database connection.");
+    }
 }
 
 // Configure the HTTP request pipeline.