feat: HealthKit workout sync, confirmation notification, health stats on Today dashboard

- HealthKitManager: add fetchWorkoutDates(from:to:) to read past workouts from Apple Health
- WorkoutViewModel: syncFromHealthKit() merges HealthKit workout dates into streak (runs on every foreground); checkPendingHealthConfirm() picks up confirmed workouts from notification action
- NotificationManager: WORKOUT_CONFIRM category with 'Yes, log it' action; scheduleWorkoutConfirm() fires weekly on scheduled workout days at configurable time (default 8pm); LOG_WORKOUT action writes pendingConfirm to UserDefaults
- SettingsView (Workout Settings): new HEALTH SYNC section with 'Sync now' button and 'Workout confirmation reminder' toggle + time picker
- TodayView: TodayHealthStrip shows steps, active calories, resting HR, and workout streak in a 4-pill row below the date header (only shown when HealthKit is authorized); refreshes on appear and foreground
- FAB: Matrix FAB padding fixed to match Today/Calendar position (.bottom 10)

Co-Authored-By: Kutesir <tqwyy79vzn@privaterelay.appleid.com>

KisaniCal.xcodeproj/xcshareddata/xcschemes/KisaniCal.xcscheme

@@ -1,11 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
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-   LastUpgradeVersion = "1500"
-   version = "1.7">
+   LastUpgradeVersion = "2620"
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-      buildImplicitDependencies = "YES"
-      runPostActionsOnFailure = "NO">
+      buildImplicitDependencies = "YES">
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@@ -27,8 +26,7 @@
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
-      shouldUseLaunchSchemeArgsEnv = "YES"
-      onlyGenerateCoverageForSpecifiedTargets = "NO">
+      shouldUseLaunchSchemeArgsEnv = "YES">
       <MacroExpansion>
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@@ -40,8 +38,6 @@
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       <Testables>
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@@ -63,8 +59,6 @@
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@@ -82,8 +76,6 @@
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-      <CommandLineArguments>
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