refactor(payments): one canonical catalog order for storefront, offer, admin; admin active/all toggle

The wallet storefront listed products in creation order — its purchases and its
chip-exchange values were unsorted, unlike the admin console and the public offer.
Extract the ordering (chip packs first by rouble price, then chip-priced values
grouped hints → no-ads → combo → tournament and by chip price) into one comparator,
compareCatalogRank over a small rank key, and apply it at all three sites
(projectCatalog, projectOfferPricing, SortAdminCatalog) — so the subgroup ranking
(valueGroup) and the full order now live in one place. The rewarded "watch for
chips" CTA is a wallet-driven element rendered above the packs, so it is unaffected
and stays on top.

Also add the admin catalog active/all toggle: AdminCatalog takes includeInactive,
the console shows active products by default and ?all=1 lists archived ones too
(the detail and grant forms keep loading all products).

Tests: a storefront canonical-order unit test (reproduced the unsorted bug first);
an integration test for the active/all toggle. Existing offer/admin order tests
unchanged — behaviour preserved.

backend/internal/server/handlers_admin_catalog.go

@@ -33,10 +33,12 @@ var priceFields = []struct {
 	{"price_chip", "", payments.CurrencyChip},
 }
 
-// consoleCatalog lists every product (active and archived) with its composition, prices, transacted
-// flag, and the inline create form.
+// consoleCatalog lists the catalog products with their composition, prices, transacted flag, and the
+// inline create form. It shows active products by default; ?all=1 also lists the archived ones (the
+// active/all toggle).
 func (s *Server) consoleCatalog(c *gin.Context) {
-	products, err := s.payments.AdminCatalog(c.Request.Context())
+	showAll := c.Query("all") == "1"
+	products, err := s.payments.AdminCatalog(c.Request.Context(), showAll)
 	if err != nil {
 		s.consoleError(c, err)
 		return
@@ -44,7 +46,7 @@ func (s *Server) consoleCatalog(c *gin.Context) {
 	// Order the list like the public offer: sales (chip packs) first, then the chip-exchange values,
 	// grouped and price-sorted the same way, so the console mirrors what a buyer sees.
 	payments.SortAdminCatalog(products)
-	var view adminconsole.CatalogView
+	view := adminconsole.CatalogView{ShowAll: showAll}
 	for _, p := range products {
 		view.Products = append(view.Products, catalogRow(p))
 	}
@@ -69,7 +71,7 @@ func (s *Server) consoleCatalogDetail(c *gin.Context) {
 	if !ok {
 		return
 	}
-	products, err := s.payments.AdminCatalog(c.Request.Context())
+	products, err := s.payments.AdminCatalog(c.Request.Context(), true) // include archived: the detail form edits any product
 	if err != nil {
 		s.consoleError(c, err)
 		return
@@ -242,7 +244,7 @@ func (s *Server) consoleGrantProduct(c *gin.Context) {
 // bundles, including archived ones — chips and tournament products are excluded).
 func (s *Server) grantForm(ctx context.Context) adminconsole.GrantFormView {
 	fv := adminconsole.GrantFormView{Present: true, Origins: []string{"direct", "vk", "telegram"}}
-	products, err := s.payments.AdminCatalog(ctx)
+	products, err := s.payments.AdminCatalog(ctx, true)
 	if err != nil {
 		return fv
 	}