feat(nav): reorder the tab bar, and give the scanner and You new glyphs

Flipcash/Core/Screens/Main/Home/HomeTab.swift

@@ -5,15 +5,17 @@
 
 import SwiftUI
 
-/// The tabs of the v2 tab-bar UI, in display order (left → right). The app
-/// launches on `.wallet` (wallet-first), mirroring the Android v2 UI.
+/// The tabs of the v2 tab-bar UI, in display order (left → right). Chat sits
+/// second, beside the scanner that feeds it, and the app still launches on
+/// `.wallet` — declaration order is the bar's order, not the launch tab. Matches
+/// Android's `NavBarButton.tabs`.
 ///
 /// Icons are the Figma tab-bar glyphs (`Nav*` template imagesets, from the same
 /// vectors as Android's `ic_nav_*`), tinted white at the call site.
 enum HomeTab: Int, CaseIterable, Identifiable, Hashable {
     case scan
-    case wallet
     case chat
+    case wallet
     case tipCard
 
     var id: Int { rawValue }
@@ -23,21 +25,31 @@ enum HomeTab: Int, CaseIterable, Identifiable, Hashable {
 
     /// The asset-catalog name of the tab's template glyph. Selected tabs use a
     /// filled glyph and the rest an outline, per the tab bar spec.
+    ///
+    /// The scanner reads tip cards, so it carries the tip card itself rather
+    /// than a viewfinder, and You takes the people-circle the scanner's slot
+    /// left free — the glyph it shows when there is no profile photo to draw in
+    /// its place (node 10000:111297).
+    ///
+    /// That fallback's filled weight comes from Material Icons' `account_circle`
+    /// rather than from the design file, which draws the You tab only as an
+    /// outline. It is the same glyph solid, and Android's people circle takes its
+    /// selected weight from the same place, so the two bars fill alike.
     func iconName(isSelected: Bool) -> String {
         switch self {
-        case .scan:    return isSelected ? "NavScanSelected"    : "NavScan"
-        case .wallet:  return isSelected ? "NavWalletSelected"  : "NavWallet"
+        case .scan:    return isSelected ? "NavTipCardSelected" : "NavTipCard"
         case .chat:    return isSelected ? "NavChatSelected"    : "NavChat"
-        case .tipCard: return isSelected ? "NavTipCardSelected" : "NavTipCard"
+        case .wallet:  return isSelected ? "NavWalletSelected"  : "NavWallet"
+        case .tipCard: return isSelected ? "NavPeopleSelected"  : "NavPeople"
         }
     }
 
     /// VoiceOver label for the tab's button.
     var accessibilityLabel: String {
         switch self {
         case .scan:    return "Scan"
-        case .wallet:  return "Wallet"
         case .chat:    return "Chat"
+        case .wallet:  return "Wallet"
         case .tipCard: return "You"
         }
     }

Flipcash/Core/Screens/Main/Home/HomeTabView.swift

@@ -123,8 +123,8 @@ struct HomeTabView: View {
     /// Derived in the body rather than waited on: the profile is hydrated from
     /// the database before the first paint, so a cold launch knows a picture is
     /// coming — and can decode its BlurHash — while the thumbnail is still being
-    /// read back. Keying only on the loaded photo would show the glyph until it
-    /// landed, which is the tip card's icon on somebody who has a picture.
+    /// read back. Keying only on the loaded photo would show the no-photo glyph
+    /// until it landed, on somebody who has a picture.
     private var profileSlot: ProfileTabSlot? {
         if let photo = profilePhoto.photo { return .photo(photo) }
         guard let picture = profilePicture, picture.thumbnailBlobID != nil else { return nil }

Flipcash/Core/Screens/Main/Home/NewUserTutorial.swift

@@ -37,7 +37,7 @@ nonisolated enum TutorialItem: TutorialItemPresentable {
     var icon: Image {
         switch self {
         case .addMoney:    return Image(systemName: "plus.circle")
-        case .scanTipCard: return Image("NavScan")
+        case .scanTipCard: return Image("NavTipCard")
         }
     }
 }

Flipcash/Supporting Files/Assets.xcassets/NavScan.imageset/Contents.json → Flipcash/Supporting Files/Assets.xcassets/NavPeople.imageset/Contents.json

@@ -1,7 +1,7 @@
 {
   "images" : [
     {
-      "filename" : "nav_scan.svg",
+      "filename" : "nav_people.svg",
       "idiom" : "universal"
     }
   ],

Flipcash/Supporting Files/Assets.xcassets/NavScanSelected.imageset/Contents.json → Flipcash/Supporting Files/Assets.xcassets/NavPeopleSelected.imageset/Contents.json

@@ -1,7 +1,7 @@
 {
   "images" : [
     {
-      "filename" : "nav_scan_selected.svg",
+      "filename" : "nav_people_selected.svg",
       "idiom" : "universal"
     }
   ],