code review fix

Tinycast/Core/Calculator/CalcDateTime.swift

@@ -148,6 +148,8 @@ enum CalcDateTime {
 
         // C: moment ± duration → a new moment.
         if let duration = parseDurationPhrase(right) {
+            // Negating Int.min traps; degrade to no card on that edge.
+            guard op == "+" || duration.count != .min else { return nil }
             let signed = op == "-" ? -duration.count : duration.count
             guard
                 let result = calendar.date(
@@ -255,7 +257,9 @@ enum CalcDateTime {
                     calendar: calendar)
             }
             if let month = monthByName[b] {
-                return monthDayMoment(month: month, day: 1, now: now, calendar: calendar)
+                return monthDayMoment(
+                    month: month, day: 1, now: now, calendar: calendar,
+                    bias: a == "last" ? .past : .future)
             }
         }
         return nil
@@ -387,7 +391,10 @@ enum CalcDateTime {
         case "min", "mins", "minute", "minutes": return (count, .minute, true)
         case "h", "hr", "hrs", "hour", "hours": return (count, .hour, true)
         case "d", "day", "days": return (count, .day, false)
-        case "wk", "week", "weeks": return (count * 7, .day, false)
+        case "wk", "week", "weeks":
+            // Absurd counts overflow the fold to days; degrade to no card rather than trap.
+            let (days, overflow) = count.multipliedReportingOverflow(by: 7)
+            return overflow ? nil : (days, .day, false)
         default: return nil
         }
     }

Tinycast/Core/ClipboardStore.swift

@@ -330,10 +330,11 @@ final class ClipboardStore: ObservableObject {
         let cutoff = Date().addingTimeInterval(-maxAge)
         if let imagesStmt = staleImagesStmt, let deleteStmt = deleteStaleStmt {
             sqlite3_bind_double(imagesStmt, 1, cutoff.timeIntervalSince1970)
+            var staleOwnedPaths: [String] = []
             while sqlite3_step(imagesStmt) == SQLITE_ROW {
                 // Only delete files we own; external references (e.g. imported) just lose their row.
                 if let path = Self.columnString(imagesStmt, 0), owns(path) {
-                    try? FileManager.default.removeItem(atPath: path)
+                    staleOwnedPaths.append(path)
                 }
             }
             sqlite3_reset(imagesStmt)
@@ -342,6 +343,14 @@ final class ClipboardStore: ObservableObject {
             sqlite3_step(deleteStmt)
             sqlite3_reset(deleteStmt)
             sqlite3_clear_bindings(deleteStmt)
+            // A retention cut can strand hundreds of files; delete them off the main actor so capture-time prune doesn't hitch.
+            if !staleOwnedPaths.isEmpty {
+                Task.detached(priority: .utility) {
+                    for path in staleOwnedPaths {
+                        try? FileManager.default.removeItem(atPath: path)
+                    }
+                }
+            }
         }
         if items.last.map({ $0.createdAt < cutoff }) == true {
             items.removeAll { $0.createdAt < cutoff }

Tinycast/Features/RootPaletteView.swift

@@ -790,6 +790,14 @@ struct EmptyResults: View {
 enum CompactFavoriteSlot {
     case app(AppEntry)
     case more
+
+    // Stable identity so a slot keeps its icon tied to its app, not its position, when favorites reorder.
+    var id: String {
+        switch self {
+        case .app(let app): return app.id
+        case .more: return "__tinycast.more__"
+        }
+    }
 }
 
 /// The compact bar's favorites strip — up to 5 icon buttons, ⌘1–⌘5 mirrored in each tooltip.
@@ -800,7 +808,7 @@ private struct CompactFavoritesRow: View {
 
     var body: some View {
         HStack(spacing: Theme.Spacing.xs) {
-            ForEach(Array(slots.enumerated()), id: \.offset) { index, slot in
+            ForEach(Array(slots.enumerated()), id: \.element.id) { index, slot in
                 switch slot {
                 case .app(let app):
                     CompactFavoriteButton(help: "\(app.name)  ⌘\(index + 1)") {