feat(usage): split throttle thresholds per bucket, add draggable gauge markers

src/ClaudeDo.Worker/Queue/QueueService.cs

@@ -242,16 +242,18 @@ public sealed class QueueService : BackgroundService
     public async Task<(int Configured, int Effective)> GetSlotCountsAsync(CancellationToken ct)
     {
         int configured;
-        int softPct, hardPct, gateFivePct, gateSevenPct;
+        UsageThresholds fiveHour, sevenDay;
         try
         {
             using var context = _dbFactory.CreateDbContext();
             var settings = await new AppSettingsRepository(context).GetAsync(ct);
             configured = Math.Max(1, settings.MaxParallelExecutions);
-            softPct = settings.UsageThrottleSoftPct;
-            hardPct = settings.UsageThrottleHardPct;
-            gateFivePct = settings.UsageGateFiveHourPct;
-            gateSevenPct = settings.UsageGateSevenDayPct;
+            fiveHour = new UsageThresholds(
+                settings.UsageThrottleFiveHourSoftPct, settings.UsageThrottleFiveHourHardPct,
+                settings.UsageGateFiveHourPct);
+            sevenDay = new UsageThresholds(
+                settings.UsageThrottleSevenDaySoftPct, settings.UsageThrottleSevenDayHardPct,
+                settings.UsageGateSevenDayPct);
         }
         catch (Exception ex)
         {
@@ -267,8 +269,9 @@ public sealed class QueueService : BackgroundService
         }
 
         var effective = UsageThrottle.EffectiveSlots(
-            configured, snapshot.FiveHour?.Utilization, snapshot.SevenDay?.Utilization,
-            softPct, hardPct, gateFivePct, gateSevenPct);
+            configured,
+            snapshot.FiveHour?.Utilization, fiveHour,
+            snapshot.SevenDay?.Utilization, sevenDay);
 
         ReportThrottleTransition(configured, effective, snapshot);
         return (configured, effective);