M7 #9+#10: Memory editor keyboard + Saved pill above keyboard

Pass-1 complaints:
- Typing near the bottom of MEMORY.md → keyboard covered the cursor,
  user lost track of where they were editing (M7 #9).
- Tapping Save → "Saved" pill was never visible because it sat at
  .bottom with a fixed 16pt padding, behind the still-raised keyboard
  (M7 #10).

Fixes:
- `.scrollDismissesKeyboard(.interactively)` on the TextEditor so
  scrolling the editor drags the keyboard down smoothly.
- Move the error banner + Saved pill into `.safeAreaInset(edge: .bottom)`
  so SwiftUI draws them above whatever is presenting the keyboard.
  The pill is now a full-width material strip (easier to hit/notice)
  instead of a floating capsule.
- Saved pill holds for 2.5s (up from 1.5s — the old timer was too
  tight to read mid-thought).
- Any in-flight hide task is cancelled when a new save lands, so
  rapid-fire saves don't produce stacked fade timers.

No Mac equivalent needed — Mac memory editor is a separate
MemoryView with different layout and a non-mobile keyboard concern.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

scarf/Scarf iOS/Memory/MemoryEditorView.swift

@@ -1,29 +1,66 @@
 import SwiftUI
 import ScarfCore
 
-/// Editor for a single memory file (MEMORY.md or USER.md). Owns an
-/// `IOSMemoryViewModel` instance, renders its `text` in a TextEditor,
-/// and exposes Save + Revert toolbar buttons.
+/// Editor for a single memory file (MEMORY.md / USER.md / SOUL.md).
+/// Owns an `IOSMemoryViewModel` instance, renders its `text` in a
+/// TextEditor, and exposes Save + Revert toolbar buttons.
+///
+/// Keyboard layout (pass-1 M7 #9 + #10):
+/// - TextEditor uses `.scrollDismissesKeyboard(.interactively)` so
+///   the keyboard tracks the user's drag, keeping the cursor visible
+///   when editing near the bottom.
+/// - The error banner + Saved pill live in `.safeAreaInset(edge: .bottom)`
+///   so they're drawn ABOVE the keyboard, not behind it. The Saved
+///   pill now holds for 2.5s (up from 1.5s) and any in-flight hide
+///   task is cancelled when a new save lands so rapid saves stack
+///   predictably.
 struct MemoryEditorView: View {
     @State private var vm: IOSMemoryViewModel
     @State private var showSavedConfirmation = false
+    @State private var savedHideTask: Task<Void, Never>?
 
     init(kind: IOSMemoryViewModel.Kind, context: ServerContext) {
         _vm = State(initialValue: IOSMemoryViewModel(kind: kind, context: context))
     }
 
     var body: some View {
-        VStack(spacing: 0) {
+        Group {
             if vm.isLoading {
+                VStack {
                     Spacer()
                     ProgressView("Loading \(vm.kind.displayName)…")
                     Spacer()
+                }
             } else {
                 TextEditor(text: $vm.text)
                     .font(.system(.body, design: .monospaced))
                     .autocorrectionDisabled()
                     .textInputAutocapitalization(.never)
+                    .scrollDismissesKeyboard(.interactively)
                     .padding(.horizontal, 8)
+            }
+        }
+        .navigationTitle(vm.kind.displayName)
+        .navigationBarTitleDisplayMode(.inline)
+        .toolbar {
+            ToolbarItem(placement: .topBarTrailing) {
+                Button("Save") {
+                    Task { await performSave() }
+                }
+                .disabled(!vm.hasUnsavedChanges || vm.isSaving)
+            }
+            ToolbarItem(placement: .topBarLeading) {
+                if vm.hasUnsavedChanges {
+                    Button("Revert") { vm.revert() }
+                }
+            }
+        }
+        // Pin feedback + error strips to the bottom safe area so they
+        // draw above the keyboard. Previously they floated inside the
+        // VStack and the keyboard covered both the save pill and the
+        // cursor the user was typing into.
+        .safeAreaInset(edge: .bottom) {
+            VStack(spacing: 0) {
                 if let err = vm.lastError {
                     HStack(spacing: 6) {
                         Image(systemName: "exclamationmark.triangle.fill")
@@ -34,47 +71,41 @@ struct MemoryEditorView: View {
                         Spacer()
                     }
                     .padding(.horizontal, 12)
-                    .padding(.vertical, 6)
-                    .background(.regularMaterial)
+                    .padding(.vertical, 8)
+                    .frame(maxWidth: .infinity, alignment: .leading)
+                    .background(.orange.opacity(0.12))
+                }
+                if showSavedConfirmation {
+                    Label("Saved", systemImage: "checkmark.circle.fill")
+                        .font(.callout)
+                        .foregroundStyle(.green)
+                        .padding(.horizontal, 14)
+                        .padding(.vertical, 8)
+                        .frame(maxWidth: .infinity)
+                        .background(.thinMaterial)
+                        .transition(.move(edge: .bottom).combined(with: .opacity))
                 }
             }
         }
-        .navigationTitle(vm.kind.displayName)
-        .navigationBarTitleDisplayMode(.inline)
-        .toolbar {
-            ToolbarItem(placement: .topBarTrailing) {
-                Button("Save") {
-                    Task {
+        .animation(.easeInOut(duration: 0.2), value: showSavedConfirmation)
+        .animation(.easeInOut(duration: 0.2), value: vm.lastError)
+        .task { await vm.load() }
+        .onDisappear { savedHideTask?.cancel() }
+    }
+
+    private func performSave() async {
         let ok = await vm.save()
-                        if ok {
+        guard ok else { return }
+        // Cancel any in-flight hide task so rapid saves don't drop
+        // the pill mid-fade (the previous implementation stacked
+        // overlapping sleep tasks).
+        savedHideTask?.cancel()
         showSavedConfirmation = true
-                            Task {
-                                try? await Task.sleep(nanoseconds: 1_500_000_000)
+        savedHideTask = Task {
+            try? await Task.sleep(nanoseconds: 2_500_000_000)
+            if !Task.isCancelled {
                 showSavedConfirmation = false
             }
         }
     }
 }
-                .disabled(!vm.hasUnsavedChanges || vm.isSaving)
-            }
-            ToolbarItem(placement: .topBarLeading) {
-                if vm.hasUnsavedChanges {
-                    Button("Revert") { vm.revert() }
-                }
-            }
-        }
-        .overlay(alignment: .bottom) {
-            if showSavedConfirmation {
-                Label("Saved", systemImage: "checkmark.circle.fill")
-                    .font(.callout)
-                    .padding(.horizontal, 14)
-                    .padding(.vertical, 8)
-                    .background(.thinMaterial, in: Capsule())
-                    .padding(.bottom, 16)
-                    .transition(.move(edge: .bottom).combined(with: .opacity))
-            }
-        }
-        .animation(.easeInOut(duration: 0.2), value: showSavedConfirmation)
-        .task { await vm.load() }
-    }
-}