feat(ios): P1-B — W7 UI wave: deep links, timeline, quick-reply, diff, projects, session switcher, thumbnails, lock-screen push

T-iOS-22: DeepLinkRouter (full-field whitelist, cold-start stash, route(from:) for push-tap reuse), 21 tests
T-iOS-24: TimelineSheet mirroring web render() order; disabled→empty-state; reuses AwayDigest onExpand
T-iOS-25: QuickReply chips (built-ins mirror quick-reply.ts via KeyByteMap; visible iff live gate && !readOnly)
T-iOS-27: read-only DiffScreen + App-layer DiffFetcher (RO no-Origin; APIClient fold-in noted for T-iOS-38 owner)
T-iOS-26: Projects list/detail — grouping byte-identical to web group keys (prefs-shared collapse state),
prefs-clobber defenses (no blind PUT on empty base; adopt server echo), claude\r bootstrap
T-iOS-23: UnreadLedger + TitleSanitizer (SessionCore, +15 tests), lastOutputAt decode, list-boundary re-sanitize
T-iOS-29: new-in-cwd (untrusted cwd, no bootstrap re-injection) + exited-session reopen; fixes stale-controller
SwiftTerm view bug via .id(controller.id)
T-iOS-28: offscreen SwiftTerm thumbnail pipeline (LRU 32, concurrency gate 2, 256KiB cap, grid clamp)
T-iOS-21: PushRegistrar (WEBTERM_GATE category: Allow=.authenticationRequired, no .foreground) +
NotificationActionHandler (whitelisted payload, token never persisted, bg-task-wrapped POST, 403 fallback)
CRITICAL fix (verify-found boot crash): @Sendable literals on UN completion closures — MainActor-inherited
closures trapped Swift 6 executor check on UN's background queue; boot re-verified (no new crash reports,
permission prompt reached, privacy shade correctly covering during system alert)
Verified: 261 pkg + 247 app + 10 integration tests green; 7/7 semantics checks; Owns audit clean

ios/App/WebTerm/Screens/TerminalScreen.swift

@@ -20,26 +20,51 @@ import UIKit
 /// T-iOS-15 — this screen only renders and routes.
 struct TerminalScreen: View {
     let viewModel: TerminalViewModel
+    /// T-iOS-29 · "在当前目录开新会话"：toolbar 常驻入口 + exit 横幅上的
+    /// "开新会话"（同一动作 —— close→open fresh spawn，cwd 解析在
+    /// `AppCoordinator.openNewSessionInCurrentCwd`）。nil = 两处入口都隐藏
+    /// （预览/无 coordinator 的测试环境）。
+    var onNewSessionInCwd: (@MainActor () -> Void)? = nil
 
     private enum Metrics {
         static let bannerHorizontalPadding: CGFloat = 12
         static let bannerTopPadding: CGFloat = 8
     }
 
+    private enum Copy {
+        static let newSessionInCwd = "在当前目录开新会话"
+    }
+
     var body: some View {
         TerminalHostView(viewModel: viewModel)
             .ignoresSafeArea(.container, edges: .bottom)
             .overlay(alignment: .top) {
                 if let model = viewModel.bannerModel {
-                    ReconnectBanner(model: model)
+                    ReconnectBanner(model: model, onNewSession: onNewSessionInCwd)
                         .padding(.horizontal, Metrics.bannerHorizontalPadding)
                         .padding(.top, Metrics.bannerTopPadding)
                         .transition(.move(edge: .top).combined(with: .opacity))
                 }
             }
             .animation(.default, value: viewModel.bannerModel)
+            .toolbar { newSessionToolbarItem }
             .onAppear { viewModel.start() }
     }
+
+    /// Mirrors web `tabs.ts newTab()` (M6): the + affordance opens a fresh
+    /// session in the active session's cwd, if known.
+    @ToolbarContentBuilder private var newSessionToolbarItem: some ToolbarContent {
+        ToolbarItem(placement: .topBarTrailing) {
+            if let onNewSessionInCwd {
+                Button {
+                    onNewSessionInCwd()
+                } label: {
+                    Label(Copy.newSessionInCwd, systemImage: "plus.rectangle.on.folder")
+                }
+                .accessibilityIdentifier("terminal.newInCwdButton")
+            }
+        }
+    }
 }
 
 // MARK: - SwiftTerm bridge
@@ -112,9 +137,15 @@ private struct TerminalHostView: UIViewRepresentable {
             UIApplication.shared.open(url)
         }
 
-        // Title/cwd surface in the session list via the server (T-iOS-13/23),
-        // not from the local emulator — deliberate no-ops.
-        func setTerminalTitle(source: TerminalView, title: String) {}
+        /// OSC 0/2 title (T-iOS-23): hostile input — the VM sanitizes
+        /// (TitleSanitizer) before any UI/registry use, then the wiring
+        /// surfaces it on the session-list row.
+        func setTerminalTitle(source: TerminalView, title: String) {
+            viewModel.setTerminalTitle(title)
+        }
+
+        // cwd surfaces in the session list via the server (T-iOS-13), not
+        // from the local emulator — deliberate no-op.
         func hostCurrentDirectoryUpdate(source: TerminalView, directory: String?) {}
         func scrolled(source: TerminalView, position: Double) {}
         func rangeChanged(source: TerminalView, startY: Int, endY: Int) {}