Add hover hint for power mode cards

VoiceInk/PowerMode/PowerModeViewComponents.swift

@@ -88,6 +88,7 @@ struct ConfigurationRow: View {
     let onEditConfig: (PowerModeConfig) -> Void
     @EnvironmentObject var enhancementService: AIEnhancementService
     @EnvironmentObject var whisperState: WhisperState
+    @State private var isHovering = false
     
     private let maxAppIconsToShow = 5
     
@@ -288,6 +289,34 @@ struct ConfigurationRow: View {
     }
     .background(CardBackground(isSelected: isEditing))
     .opacity(config.isEnabled ? 1.0 : 0.5)
+    .overlay(
+        Group {
+            if isHovering {
+                VStack {
+                    HStack(spacing: 4) {
+                        Image(systemName: "hand.tap")
+                            .font(.system(size: 10))
+                        Text("Right-click to edit/delete")
+                            .font(.caption2)
+                    }
+                    .foregroundColor(.secondary)
+                        .padding(.horizontal, 8)
+                        .padding(.vertical, 4)
+                        .background(
+                            Capsule()
+                                .fill(Color(NSColor.controlBackgroundColor).opacity(0.9))
+                        )
+                        .padding(.top, 8)
+                    Spacer()
+                }
+            }
+        }
+    )
+    .onHover { hovering in
+        withAnimation(.easeInOut(duration: 0.15)) {
+            isHovering = hovering
+        }
+    }
     .contextMenu {
         Button(action: {
             onEditConfig(config)