[2026-07-resubmission] Add guest browsing flow with App Attest session for App Review resubmission

Adds a pre-login public store locator (guest session via DeviceCheck/App
Attest, keychain-backed token storage) so the app no longer forces sign-in
before showing any content, plus updated support URL metadata.

Sources/PediFoods/Views/Main/HomeView+Data.swift

@@ -135,4 +135,62 @@ extension HomeView {
         }
         return "Não foi possível carregar os estabelecimentos."
     }
+
+    /// Anonymous store loading: no account, no coordinates — just the
+    /// manually-picked state/city from the public locator. The BFF endpoint
+    /// has no category filter, so any category chip selection is applied
+    /// client-side via `filteredStores` (HomeView+Filtering.swift), same as
+    /// the multi-select filters already do.
+    @MainActor
+    func loadGuestStores(hadExistingStores: Bool, category: String?, refreshCategories: Bool) async {
+        guard let state = GuestLocationStore.shared.selectedState,
+              let city = GuestLocationStore.shared.selectedCity else {
+            isLoadingStores = false
+            stores = []
+            storesError = "Escolha um estado e cidade para visualizar os estabelecimentos."
+            appState.activeModal = .addressPicker
+            return
+        }
+
+        do {
+            let items = try await PublicLocationService.shared.fetchStores(state: state, city: city)
+            isLoadingStores = false
+            let mapped = items.map(StoreSummary.init(publicItem:))
+            stores = mapped
+            if refreshCategories || (category == nil && categories.count <= 1) {
+                await loadHomeCategories(withFallbackStores: mapped, forceRefresh: refreshCategories)
+                if categories.contains(where: { $0.id == selectedCategory }) == false {
+                    selectedCategory = "all"
+                }
+            }
+            storesError = nil
+        } catch {
+            if isCancelledRequest(error) {
+                isLoadingStores = false
+                return
+            }
+            isLoadingStores = false
+            reportStoresLoadFailure(storesUserMessage(error), hadExistingStores: hadExistingStores)
+        }
+    }
+}
+
+extension StoreSummary {
+    /// Maps the public-locator DTO onto the same model HomeView already
+    /// renders — distance/positiveReviews don't exist in that response.
+    init(publicItem: PublicStoreListItem) {
+        self.id = publicItem.id
+        self.name = publicItem.name ?? "Loja"
+        self.logo = publicItem.logo
+        self.cover = publicItem.cover
+        self.category = publicItem.category
+        self.rating = publicItem.rating
+        self.reviewsCount = publicItem.totalReviews
+        self.positiveReviews = nil
+        self.deliveryTime = publicItem.deliveryTime
+        self.deliveryFee = publicItem.deliveryFee
+        self.distance = nil
+        self.isOpen = publicItem.isOpen
+        self.statusLabel = publicItem.statusLabel
+    }
 }