Round brand logos in station rows: 11 bundled assets (Simple Icons + Wikimedia), fuel-pump fallback for unknown brands

Shared/FuelStore.swift

@@ -93,6 +93,29 @@ struct FuelStation: Identifiable, Codable, Equatable {
     var mapsDirectionsURL: URL? {
         URL(string: "http://maps.apple.com/?daddr=\(lat),\(lng)&t=d")
     }
+
+    /// Name of the bundled brand logo asset, or nil if unknown.
+    /// Normalizes messy raw brand strings ("SHELL LEEDS ROAD" → "shell").
+    var brandImageName: String? {
+        let raw = brand.uppercased()
+        let known: [(String, String)] = [
+            ("SHELL", "brand_shell"),
+            ("SAINSBURY", "brand_sainsburys"),
+            ("MORRISONS", "brand_morrisons"),
+            ("APPLEGREEN", "brand_applegreen"),
+            ("TESCO", "brand_tesco"),
+            ("TEXACO", "brand_texaco"),
+            ("ESSO", "brand_esso"),
+            ("ASDA", "brand_asda"),
+            ("GULF", "brand_gulf"),
+            ("BP", "brand_bp"),
+            ("JET", "brand_jet"),
+        ]
+        for (needle, asset) in known where raw.contains(needle) {
+            return asset
+        }
+        return nil
+    }
 }
 
 // MARK: - Shared store