feat(ui): drive prime schedule rows from weekday toggles

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/ClaudeDo.Ui/Services/PrimeScheduleDto.cs

@@ -2,10 +2,8 @@ namespace ClaudeDo.Ui.Services;
 
 public sealed record PrimeScheduleDto(
     Guid Id,
-    DateOnly StartDate,
-    DateOnly EndDate,
+    int Days,
     TimeSpan TimeOfDay,
-    bool WorkdaysOnly,
     bool Enabled,
     DateTimeOffset? LastRunAt,
     string? PromptOverride);