Upgrade MyGo to v0.5.5

Elements are now pass-scoped value handles: tests that read bounds
after a frame bind a ui.Handle. pixel tells frames apart by the build
pass's root, since the Tester clock no longer moves on its own.

Fix the regressions the upgrade brought:
- Clipboard reads in input handlers go through c.Services().
- MyGo notes an overlay's opener after building it, so AutoFocus
  inside lost it; pixel.AutoFocus focuses through a Handle, and
  archtest bans the raw call. Dialogs hand the focus back again.
- Elements around a press stay hovered: Tooltip tells a press-given
  focus by focus arriving under the pointer.
- The web host moves the Tester clock with real time, at most 500 ms
  a call, and gives components the real clock.

The gallery's source index also accepts CRLF checkouts.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

shop/bidticker.go

@@ -25,7 +25,7 @@ type BidTickerOptions struct {
 }
 
 // BidTicker lists bids, newest first, crowning the highest.
-func BidTicker(c *ui.Context, text string, bids []Bid, o BidTickerOptions) *ui.Element {
+func BidTicker(c *ui.Context, text string, bids []Bid, o BidTickerOptions) ui.Element {
 	k := pixel.K(c)
 	top := -1
 	for i, b := range bids {

shop/cart.go

@@ -28,7 +28,7 @@ type CartOptions struct {
 }
 
 type CartResult struct {
-	Element *ui.Element
+	Element ui.Element
 	Changed bool
 	// Removed is the line whose ✕ was pressed, else -1.
 	Removed int

shop/checkout.go

@@ -17,7 +17,7 @@ type CheckoutOptions struct {
 }
 
 type CheckoutResult struct {
-	Element *ui.Element
+	Element ui.Element
 	// Done reports the order placed this frame.
 	Changed, Done bool
 }

shop/coupon.go

@@ -16,7 +16,7 @@ type CouponOptions struct {
 }
 
 type CouponResult struct {
-	Element *ui.Element
+	Element ui.Element
 	Copied  bool
 }
 

shop/currencyconvert.go

@@ -18,7 +18,7 @@ type CurrencyConvertOptions struct {
 }
 
 type CurrencyConvertResult struct {
-	Element *ui.Element
+	Element ui.Element
 	// Converted is the gems bought this frame.
 	Converted int
 }

shop/dailyreward.go

@@ -17,7 +17,7 @@ type DailyRewardOptions struct {
 }
 
 type DailyRewardResult struct {
-	Element *ui.Element
+	Element ui.Element
 	Claimed bool
 }
 

shop/pricetag.go

@@ -15,7 +15,7 @@ type PriceTagOptions struct {
 }
 
 // PriceTag is a coin and amount; sales strike the old.
-func PriceTag(c *ui.Context, price int, o PriceTagOptions) *ui.Element {
+func PriceTag(c *ui.Context, price int, o PriceTagOptions) ui.Element {
 	k := pixel.K(c)
 	sp, word := coin(k, o.Currency)
 	now, was := amount("PriceTag", price), amount("PriceTag Was", o.Was)

shop/pricingtiers.go

@@ -23,7 +23,7 @@ type PricingTiersOptions struct {
 }
 
 type PricingTiersResult struct {
-	Element *ui.Element
+	Element ui.Element
 	Changed bool
 }
 
@@ -57,7 +57,7 @@ func PricingTiers(c *ui.Context, text string, tiers [3]Tier, chosen *int, o Pric
 			name, price := k.Msg(metals[i]), strconv.Itoa(t.Price)
 			sel := *chosen
 			// The shell draws the card; the radio stays bare.
-			shell, base, st := pixel.Shell(c, func() *ui.Element {
+			shell, base, st := pixel.Shell(c, func() ui.Element {
 				return ui.RadioBase(c, &sel, i).Label(name + ", " + price + " " + word).Disabled(o.Disabled)
 			})
 			// The radio picks before it is told it is off.

shop/quantity.go

@@ -18,7 +18,7 @@ type QuantityOptions struct {
 }
 
 type QuantityResult struct {
-	Element *ui.Element
+	Element ui.Element
 	Changed bool
 }
 
@@ -29,7 +29,7 @@ func Quantity(c *ui.Context, text string, value *int, o QuantityOptions) Quantit
 	if lo < 0 || hi < lo || *value < lo || *value > hi {
 		panic(fmt.Sprintf("shop: Quantity %d outside %d to %d", *value, lo, hi))
 	}
-	shell, base, st := pixel.Shell(c, func() *ui.Element {
+	shell, base, st := pixel.Shell(c, func() ui.Element {
 		return ui.Box(c).Focusable().Role(ui.RoleStepper).Label(text).Disabled(o.Disabled)
 	})
 	old, nw := *value, pixel.Measure(strconv.Itoa(hi))+6

shop/receipt.go

@@ -27,7 +27,7 @@ type ReceiptOptions struct {
 }
 
 // Receipt prints lines dot-matrix style, perforated down the sides.
-func Receipt(c *ui.Context, shop string, lines []ReceiptLine, o ReceiptOptions) *ui.Element {
+func Receipt(c *ui.Context, shop string, lines []ReceiptLine, o ReceiptOptions) ui.Element {
 	k := pixel.K(c)
 	if shop == "" {
 		panic("shop: Receipt has no shop name")

shop/salebadge.go

@@ -114,7 +114,7 @@ var (
 )
 
 // SaleBadge is a SALE -n% starburst whose rim flashes.
-func SaleBadge(c *ui.Context, percent int, o SaleBadgeOptions) *ui.Element {
+func SaleBadge(c *ui.Context, percent int, o SaleBadgeOptions) ui.Element {
 	k := pixel.K(c)
 	if percent < 1 || percent > 99 {
 		panic(fmt.Sprintf("shop: SaleBadge of %d%%", percent))

shop/shop.go

@@ -39,7 +39,7 @@ func amount(name string, n int) string {
 }
 
 // money draws a currency icon and amount, named for readers.
-func money(c *ui.Context, k pixel.Kit, cur Currency, n int, slot pixel.Slot) *ui.Element {
+func money(c *ui.Context, k pixel.Kit, cur Currency, n int, slot pixel.Slot) ui.Element {
 	sp, word := coin(k, cur)
 	s := amount("money", n)
 	return ui.Box(c).Size(k.D(14+pixel.Measure(s)), k.D(pixel.LineHeight)).Role(ui.RoleText).Label(s + " " + word).Draw(func(p *ui.Painter, r ui.Rect) {

shop/shopitem.go

@@ -29,7 +29,7 @@ type ShopItemOptions struct {
 }
 
 type ShopItemResult struct {
-	Element *ui.Element
+	Element ui.Element
 	Bought  bool
 }
 

shop/tradewindow.go

@@ -24,7 +24,7 @@ type TradeWindowOptions struct {
 }
 
 type TradeWindowResult struct {
-	Element *ui.Element
+	Element ui.Element
 	Changed bool
 	// Traded reports both confirms landing this frame.
 	Traded bool

shop/vendingmachine.go

@@ -26,7 +26,7 @@ type VendingMachineOptions struct {
 }
 
 type VendingMachineResult struct {
-	Element *ui.Element
+	Element ui.Element
 	// Vended is the slot dropped this frame, else -1.
 	Vended int
 }

shop/wallet.go

@@ -13,7 +13,7 @@ type WalletOptions struct {
 }
 
 // Wallet shows gold and gem balances that roll on change.
-func Wallet(c *ui.Context, gold, gems int, o WalletOptions) *ui.Element {
+func Wallet(c *ui.Context, gold, gems int, o WalletOptions) ui.Element {
 	k := pixel.K(c)
 	g, m := amount("Wallet gold", gold), amount("Wallet gems", gems)
 	_, gw := coin(k, Gold)