Removed symbol requirement for password, fix formatting.

Endpoints/AuthValidator.cs

@@ -38,11 +38,10 @@ internal static class AuthValidator
         var hasUpper = password.Any(char.IsUpper);
         var hasLower = password.Any(char.IsLower);
         var hasDigit = password.Any(char.IsDigit);
-        var hasSymbol = password.Any(ch => !char.IsLetterOrDigit(ch));
-        if (!hasUpper || !hasLower || !hasDigit || !hasSymbol)
+        if (!hasUpper || !hasLower || !hasDigit)
         {
             validated = default;
-            error = "Password must include uppercase, lowercase, number, and symbol.";
+            error = "Password must include at least one uppercase and one lowercase characters and and digit.";
             return false;
         }
 
@@ -95,10 +94,5 @@ internal static class AuthValidator
         return true;
     }
 
-    public readonly record struct ValidatedRegistration(
-        string Username,
-        string NormalizedUsername,
-        string DisplayName,
-        string? AdminKey
-    );
+    public readonly record struct ValidatedRegistration(string Username, string NormalizedUsername, string DisplayName, string? AdminKey);
 }