fix: widget iOS 17 deployment target + register FloatingTabState

- Widget extension: 16.0 → 17.0 (containerBackground/widget API require 17)
- xcodegen re-run picks up FloatingTabState.swift (was on disk but
  not registered in project.pbxproj after previous xcodegen run)

KisaniCal/Views/MatrixView.swift

@@ -128,6 +128,7 @@ struct QuadrantCard: View {
             // ── Scrollable task list ──
             ScrollView(showsIndicators: false) {
                 VStack(alignment: .leading, spacing: 0) {
+                    Color.clear.frame(height: 0).trackScrollForTabBar()
                     ForEach(tasks) { task in
                         HStack(alignment: .top, spacing: 6) {
                             RoundedRectangle(cornerRadius: 3)

KisaniCal/Views/SettingsView.swift

@@ -44,6 +44,7 @@ struct SettingsView: View {
             AppColors.background(cs).ignoresSafeArea()
             ScrollView(showsIndicators: false) {
                 VStack(spacing: 0) {
+                    Color.clear.frame(height: 0).trackScrollForTabBar()
 
                     Text("Settings")
                         .font(AppFonts.sans(15, weight: .semibold))

KisaniCal/Views/TodayView.swift

@@ -18,6 +18,7 @@ struct TodayView: View {
 
             ScrollView(showsIndicators: false) {
                 VStack(alignment: .leading, spacing: 0) {
+                    Color.clear.frame(height: 0).trackScrollForTabBar()
 
                     // ── Header ──
                     HStack {

KisaniCal/Views/WorkoutView.swift

@@ -710,6 +710,7 @@ struct ManageWorkoutsSheet: View {
 
             ScrollView(showsIndicators: false) {
                 VStack(alignment: .leading, spacing: 20) {
+                    Color.clear.frame(height: 0).trackScrollForTabBar()
                     VStack(alignment: .leading, spacing: 8) {
                         Text("PROGRAMS").font(AppFonts.mono(9, weight: .bold)).foregroundColor(AppColors.text3(cs))