Add secret-safe copy and reveal UX coverage

main.go

@@ -86,7 +86,6 @@ type ui struct {
 	copyUser              widget.Clickable
 	copyPass              widget.Clickable
 	copyURL               widget.Clickable
-	openURL               widget.Clickable
 	lockVault             widget.Clickable
 	unlockVault           widget.Clickable
 	createVault           widget.Clickable
@@ -135,6 +134,7 @@ type ui struct {
 	eyeIcon               *widget.Icon
 	eyeOffIcon            *widget.Icon
 	copyIcon              *widget.Icon
+	clipboardWriter       clipboard.Writer
 	loadingMessage        string
 	statusMessage         string
 	errorMessage          string
@@ -975,10 +975,7 @@ func (u *ui) detailPanel(gtx layout.Context) layout.Dimensions {
 				layout.Rigid(u.entryEditorPanel),
 			)
 		}
-		password := strings.Repeat("•", max(8, len(item.Password)))
-		if u.showPassword {
-			password = item.Password
-		}
+		password := u.detailPasswordValue()
 		titleSize := unit.Sp(26)
 		titlePad := unit.Dp(10)
 		sectionGap := unit.Dp(8)
@@ -1016,7 +1013,7 @@ func (u *ui) detailPanel(gtx layout.Context) layout.Dimensions {
 						}),
 						layout.Rigid(layout.Spacer{Height: unit.Dp(8)}.Layout),
 						layout.Rigid(func(gtx layout.Context) layout.Dimensions {
-							return tonedButton(gtx, u.theme, &u.openURL, "Open URL")
+							return tonedButton(gtx, u.theme, &u.copyURL, "Copy URL")
 						}),
 					)
 				}
@@ -1032,7 +1029,7 @@ func (u *ui) detailPanel(gtx layout.Context) layout.Dimensions {
 					}),
 					layout.Rigid(layout.Spacer{Width: unit.Dp(8)}.Layout),
 					layout.Rigid(func(gtx layout.Context) layout.Dimensions {
-						btn := material.Button(u.theme, &u.openURL, "Open URL")
+						btn := material.Button(u.theme, &u.copyURL, "Copy URL")
 						return btn.Layout(gtx)
 					}),
 				)
@@ -1201,6 +1198,17 @@ func (u *ui) passwordLine(label, value string) layout.Widget {
 	}
 }
 
+func (u *ui) detailPasswordValue() string {
+	item, ok := u.selectedEntry()
+	if !ok {
+		return ""
+	}
+	if u.showPassword {
+		return item.Password
+	}
+	return strings.Repeat("•", max(8, len(item.Password)))
+}
+
 func card(gtx layout.Context, w layout.Widget) layout.Dimensions {
 	return layout.Background{}.Layout(gtx, fill(panelColor), func(gtx layout.Context) layout.Dimensions {
 		return layout.UniformInset(unit.Dp(16)).Layout(gtx, w)