Calendar: show the year (fix "can't navigate past 2026")

Navigation was unbounded, but headers only showed the month name so the
year change was invisible and future months felt unreachable.

- Main calendar header now shows "Month Year".
- Date-picker grid label shows the year.
- Year view gets a chevron year navigator (unbounded) + year label.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

KisaniCal/Views/CalendarView.swift

@@ -326,9 +326,9 @@ struct CalendarView: View {
                     }
                     .menuStyle(.automatic)
 
-                    // Center: month name
+                    // Center: month + year
                     Spacer()
-                    Text(monthShortTitle)
+                    Text(monthTitle)
                         .font(AppFonts.sans(17, weight: .semibold))
                         .foregroundColor(AppColors.text(cs))
                     Spacer()
@@ -673,7 +673,25 @@ struct CalendarView: View {
     private var yearView: some View {
         let year = cal.component(.year, from: displayMonth)
         let months: [Date] = (1...12).compactMap { cal.date(from: DateComponents(year: year, month: $0, day: 1)) }
-        return ScrollView(showsIndicators: false) {
+        return VStack(spacing: 0) {
+            // Year header with navigation (unbounded — go as far forward/back as you like).
+            HStack {
+                Button { navigateYear(-1) } label: {
+                    Image(systemName: "chevron.left").font(.system(size: 14, weight: .semibold))
+                        .foregroundColor(AppColors.text(cs)).frame(width: 40, height: 40)
+                }
+                Spacer()
+                Text(String(year))
+                    .font(AppFonts.sans(20, weight: .bold)).foregroundColor(AppColors.text(cs))
+                Spacer()
+                Button { navigateYear(1) } label: {
+                    Image(systemName: "chevron.right").font(.system(size: 14, weight: .semibold))
+                        .foregroundColor(AppColors.text(cs)).frame(width: 40, height: 40)
+                }
+            }
+            .padding(.horizontal, 16).padding(.top, 4)
+
+            ScrollView(showsIndicators: false) {
                 LazyVGrid(columns: [GridItem(.flexible()), GridItem(.flexible()), GridItem(.flexible())], spacing: 24) {
                     ForEach(months, id: \.self) { m in
                         cvMiniMonth(m)
@@ -682,6 +700,13 @@ struct CalendarView: View {
                 .padding(16)
             }
         }
+    }
+
+    private func navigateYear(_ offset: Int) {
+        withAnimation(KisaniSpring.snappy) {
+            displayMonth = cal.date(byAdding: .year, value: offset, to: displayMonth) ?? displayMonth
+        }
+    }
 
     private func cvMiniMonth(_ month: Date) -> some View {
         let mDays = cvMiniGridDays(month)

KisaniCal/Views/TodayView.swift

@@ -2560,7 +2560,7 @@ struct CalendarGridView: View {
     }
 
     private var monthLabel: String {
-        let f = DateFormatter(); f.dateFormat = "MMMM"; return f.string(from: displayMonth)
+        let f = DateFormatter(); f.dateFormat = "MMMM yyyy"; return f.string(from: displayMonth)
     }
 
     private func shift(_ d: Int) {