Revert "chore: remove MTRX iOS folder from 0pnMatrx repo"

This reverts commit e5306b8.

Author: Neo

MTRX/Account/AccountView.swift

@@ -0,0 +1,128 @@
+import SwiftUI
+
+/// Root tab navigation for the MTRX iOS app.
+///
+/// Five tabs in locked order:
+///   1. Discover  — browse platform capabilities
+///   2. Build     — developer tools, marketplace, SDK
+///   3. Home      — Trinity chat (default on launch)
+///   4. Social    — live activity feed
+///   5. Account   — wallet, subscription, settings
+///
+/// Home is always the default selected tab.
+struct MTRXTabView: View {
+
+    enum Tab: Int, CaseIterable {
+        case discover = 0
+        case build    = 1
+        case home     = 2
+        case social   = 3
+        case account  = 4
+    }
+
+    @State private var selectedTab: Tab = .home
+
+    /// Pre-filled message to send to Trinity when deep-linking from Discover.
+    /// Set this before switching to .home and HomeView will pick it up.
+    @State private var pendingTrinityMessage: String = ""
+
+    /// Gateway base URL — shared across tabs that need it.
+    private let baseURL: URL
+
+    init(baseURL: URL = URL(string: "http://localhost:18790")!) {
+        self.baseURL = baseURL
+
+        // Tab bar appearance: pure black background, green/grey tint
+        let appearance = UITabBarAppearance()
+        appearance.configureWithOpaqueBackground()
+        appearance.backgroundColor = UIColor.black
+        appearance.stackedLayoutAppearance.normal.iconColor = UIColor(
+            red: 0x66 / 255.0,
+            green: 0x66 / 255.0,
+            blue: 0x66 / 255.0,
+            alpha: 1.0
+        )
+        appearance.stackedLayoutAppearance.normal.titleTextAttributes = [
+            .foregroundColor: UIColor(
+                red: 0x66 / 255.0,
+                green: 0x66 / 255.0,
+                blue: 0x66 / 255.0,
+                alpha: 1.0
+            )
+        ]
+        appearance.stackedLayoutAppearance.selected.iconColor = UIColor(
+            red: 0x00 / 255.0,
+            green: 0xFF / 255.0,
+            blue: 0x41 / 255.0,
+            alpha: 1.0
+        )
+        appearance.stackedLayoutAppearance.selected.titleTextAttributes = [
+            .foregroundColor: UIColor(
+                red: 0x00 / 255.0,
+                green: 0xFF / 255.0,
+                blue: 0x41 / 255.0,
+                alpha: 1.0
+            )
+        ]
+        UITabBar.appearance().standardAppearance = appearance
+        UITabBar.appearance().scrollEdgeAppearance = appearance
+    }
+
+    var body: some View {
+        TabView(selection: $selectedTab) {
+
+            // ── Tab 1: Discover ──────────────────────────────────
+            DiscoverView(
+                baseURL: baseURL,
+                onTryWithTrinity: { message in
+                    pendingTrinityMessage = message
+                    selectedTab = .home
+                }
+            )
+            .tabItem {
+                Label("Discover", systemImage: "safari")
+            }
+            .tag(Tab.discover)
+
+            // ── Tab 2: Build ─────────────────────────────────────
+            BuildView(baseURL: baseURL)
+                .tabItem {
+                    Label("Build", systemImage: "hammer")
+                }
+                .tag(Tab.build)
+
+            // ── Tab 3: Home (Trinity) ────────────────────────────
+            HomeView(
+                baseURL: baseURL,
+                pendingMessage: $pendingTrinityMessage
+            )
+            .tabItem {
+                Label("Home", systemImage: "message.fill")
+            }
+            .tag(Tab.home)
+
+            // ── Tab 4: Social ────────────────────────────────────
+            SocialFeedView(baseURL: baseURL)
+                .tabItem {
+                    Label("Social", systemImage: "globe")
+                }
+                .tag(Tab.social)
+
+            // ── Tab 5: Account ───────────────────────────────────
+            AccountView(baseURL: baseURL)
+                .tabItem {
+                    Label("Account", systemImage: "person.crop.circle")
+                }
+                .tag(Tab.account)
+        }
+        .preferredColorScheme(.dark)
+    }
+}
+
+#if DEBUG
+struct MTRXTabView_Previews: PreviewProvider {
+    static var previews: some View {
+        MTRXTabView()
+    }
+}
+#endif