fix: share private chat files and harden native lifecycle

Sources/Chat/ChatExport.swift

@@ -0,0 +1,14 @@
+import SwiftUI
+import UniformTypeIdentifiers
+
+/// Share through the system transfer service, not a persistent app cache.
+/// Named representations carry server bytes unchanged and never expose an origin/token.
+struct PrivateChatExport: Transferable {
+    let data: Data
+    let filename: String
+    let type: UTType
+    static var transferRepresentation: some TransferRepresentation {
+        DataRepresentation(exportedContentType: .data) { value in value.data }
+            .suggestedFileName { value in value.filename }
+    }
+}

Sources/Chat/ChatFeatures.swift

@@ -211,7 +211,8 @@ struct ChatLibraryView: View {
                 Picker("Kind", selection: $kind) { ForEach(["markdown", "text", "code"], id: \.self) { Text($0.capitalized).tag($0) } }
                 TextEditor(text: $content).frame(minHeight: 220)
                 if let artifact {
-                    ShareLink("Export text", item: content)
+                    let file = PrivateChatExport(data: Data(content.utf8), filename: "Hope-artifact-\(artifact.id).\(kind == "markdown" ? "md" : "txt")", type: .plainText)
+                    ShareLink("Export file", item: file, preview: SharePreview(file.filename))
                     if artifact.revision > 1 { Menu("View earlier revision") { ForEach(1..<artifact.revision, id: \.self) { revision in Button("Revision \(revision)") { Task { if let value = await store.historical(artifact, revision: revision) { content = value.content ?? "" } } } } } }
                     Text("Historical content uses the current title and kind. Saving creates a new revision.").font(.footnote)
                 }

Sources/Chat/ChatStore.swift

@@ -22,6 +22,7 @@ final class ChatStore: ObservableObject {
     @Published var researchAvailable = false
     @Published var research = false
     @Published var exportText: String?
+    @Published var exportFile: PrivateChatExport?
     private var syncCursor = 0
     private var syncTask: Task<Void, Never>?
     @Published var model = ""
@@ -41,7 +42,7 @@ final class ChatStore: ObservableObject {
     var activeRun: HopeRun? { runs.first(where: \.active) }
 
     init(api: ChatTransport) { self.api = api; self.features = ChatFeatureStore(api: api) }
-    deinit { stream?.cancel() }
+    deinit { stream?.cancel(); syncTask?.cancel() }
     private func call<T: Decodable>(_ path: String, method: String = "GET", body: [String: Any]? = nil, query: [URLQueryItem] = []) async throws -> T {
         let epoch = generation
         let data = try await api.request(path, method: method, body: body, query: query)
@@ -77,7 +78,7 @@ final class ChatStore: ObservableObject {
     func open(_ conversation: HopeConversation) async {
         if let selected { drafts[selected.id] = draft }
         generation += 1; stream?.cancel(); stream = nil
-        selected = conversation; messages = []; runs = []; progress = nil; approval = nil
+        selected = conversation; messages = []; runs = []; progress = nil; approval = nil; exportText = nil; exportFile = nil
         draft = drafts[conversation.id] ?? ""; pendingKey = nil; selectedAttachmentIds = []; olderMessagesCursor = nil; error = nil
         do {
             let detail: ConversationDetail = try await call("api/conversations/\(conversation.id)")
@@ -249,16 +250,20 @@ final class ChatStore: ObservableObject {
             let bytes = try await api.request("api/conversations/\(selected.id)/export", method: "GET", body: nil, query: [URLQueryItem(name: "format", value: format)])
             guard epoch == generation, !closed else { return }
             exportText = String(data: bytes, encoding: .utf8)
+            exportFile = PrivateChatExport(data: bytes, filename: "Hope-chat-\(selected.id).\(format == "json" ? "json" : "md")", type: format == "json" ? .json : .plainText)
         } catch { await failure(error) }
     }
     func foreground(_ active: Bool) {
         syncTask?.cancel(); syncTask = nil
-        guard active, !closed else { return }
+        guard active, !closed else { stream?.cancel(); stream = nil; return }
+        resume()
         syncTask = Task { [weak self] in
-            guard let self else { return }
-            await loadResearch()
-            while !Task.isCancelled, !closed {
-                await synchronize()
+            await self?.loadResearch()
+            while !Task.isCancelled {
+                guard self?.closed == false else { return }
+                await self?.synchronize()
+                // Release the store before suspension; its retained task must not
+                // keep an otherwise-discarded account alive indefinitely.
                 do { try await Task.sleep(for: .seconds(5)) } catch { return }
             }
         }
@@ -296,7 +301,7 @@ final class ChatStore: ObservableObject {
         } catch { if case ChatFailure.status(let status) = error, status == 401 || status == 403 { await failure(error) } }
     }
     /// Invalidate every outstanding callback before clearing account-visible content.
-    func close() { syncTask?.cancel(); syncTask = nil; exportText = nil; research = false; features.close(); selectedAttachmentIds = []; closed = true; generation += 1; stream?.cancel(); stream = nil; api.cancel(); conversations = []; workspaces = []; selected = nil; messages = []; runs = []; draft = ""; drafts = [:]; cursors = [:]; pendingKey = nil; approval = nil; progress = nil; error = nil }
+    func close() { syncTask?.cancel(); syncTask = nil; exportText = nil; exportFile = nil; research = false; features.close(); selectedAttachmentIds = []; closed = true; generation += 1; stream?.cancel(); stream = nil; api.cancel(); conversations = []; workspaces = []; selected = nil; messages = []; runs = []; draft = ""; drafts = [:]; cursors = [:]; pendingKey = nil; approval = nil; progress = nil; error = nil }
 }
 struct ChatModelChoice: Decodable, Identifiable { let id: String; let thinkingLevels: [String]? }
 struct ChatSettingsValue: Decodable { let model: String; let thinkingLevel: String }

Sources/Chat/ChatViews.swift

@@ -133,6 +133,7 @@ struct ChatDetailView: View {
                     Color.clear.frame(height: 1).id("chat-bottom")
                 }.padding(.horizontal, 20).padding(.vertical, 16).frame(maxWidth: 760)
             }
+            .scrollDismissesKeyboard(.interactively)
             .simultaneousGesture(DragGesture().onChanged { _ in follow = false })
             .onChange(of: store.messages) { _, _ in if follow { proxy.scrollTo("chat-bottom", anchor: .bottom) } }
             .overlay(alignment: .bottomTrailing) {
@@ -148,7 +149,7 @@ struct ChatDetailView: View {
                 Button("Talk", systemImage: "waveform") { if let id = store.selected?.id { Task { await talk(id) } } }.disabled(store.activeRun != nil)
                 Button("Export Markdown") { Task { await store.exportConversation(format: "markdown") } }
                 Button("Export JSON") { Task { await store.exportConversation(format: "json") } }
-                if let text = store.exportText { ShareLink("Share export", item: text) }
+                if let file = store.exportFile { ShareLink("Share export file", item: file, preview: SharePreview(file.filename)) }
             } label: { Image(systemName: "ellipsis.circle").frame(minWidth: 44, minHeight: 44) }.accessibilityLabel("Chat actions")
         } }
         .safeAreaInset(edge: .bottom) {
@@ -193,7 +194,15 @@ struct RichChatMarkdown: View {
                     }.padding(12).background(Color(uiColor: .secondarySystemBackground), in: RoundedRectangle(cornerRadius: 12))
                 } else {
                     ForEach(Array(block.text.components(separatedBy: "\n").enumerated()), id: \.offset) { _, line in
-                        if line.hasPrefix("# ") { markdown(String(line.dropFirst(2))).font(.title2.weight(.semibold)) }
+                        if line.trimmingCharacters(in: .whitespaces).hasPrefix("|"), line.contains("|") {
+                            let cells = line.split(separator: "|", omittingEmptySubsequences: true).map { String($0).trimmingCharacters(in: .whitespaces) }
+                            if !cells.allSatisfy({ $0.allSatisfy { "-: ".contains($0) } }) {
+                                HStack(alignment: .top, spacing: 12) { ForEach(Array(cells.enumerated()), id: \.offset) { _, cell in markdown(cell).frame(maxWidth: .infinity, alignment: .leading) } }
+                                    .padding(.vertical, 6).accessibilityElement(children: .combine)
+                                Divider()
+                            }
+                        }
+                        else if line.hasPrefix("# ") { markdown(String(line.dropFirst(2))).font(.title2.weight(.semibold)) }
                         else if line.hasPrefix("## ") { markdown(String(line.dropFirst(3))).font(.title3.weight(.semibold)) }
                         else if line.hasPrefix("### ") { markdown(String(line.dropFirst(4))).font(.headline) }
                         else if line.hasPrefix("- ") || line.hasPrefix("* ") { HStack(alignment: .top) { Text("•"); markdown(String(line.dropFirst(2))) } }

Tests/ChatTests.swift

@@ -43,10 +43,13 @@ final class ChatTests: XCTestCase {
         XCTAssertFalse(store.researchAvailable)
         await store.exportConversation(format: "markdown")
         XCTAssertTrue(store.exportText?.contains("Export this") == true)
+        XCTAssertTrue(store.exportFile?.filename.hasSuffix(".md") == true)
+        XCTAssertEqual(store.exportFile?.data, Data(store.exportText!.utf8))
         store.foreground(true)
         store.foreground(false)
         store.close()
         XCTAssertNil(store.exportText)
+        XCTAssertNil(store.exportFile)
         XCTAssertFalse(store.research)
     }
     func testBranchAndRegeneratePreserveOriginal() async throws {

UITests/ChatUITests.swift

@@ -3,7 +3,7 @@ import XCTest
 final class ChatUITests: XCTestCase {
     func testNativeTextChatWithoutVoiceAndAccountPrivacy() {
         let app = XCUIApplication()
-        app.launchArguments = ["--ui-testing", "--reset-ui-testing", "--ui-chat"]
+        app.launchArguments = ["--ui-testing", "--reset-ui-testing", "--ui-chat", "-UIPreferredContentSizeCategoryName", "UICTContentSizeCategoryL"]
         app.launch()
         XCTAssertTrue(app.navigationBars["Chats"].waitForExistence(timeout: 10))
         app.buttons["New chat"].tap()
@@ -13,7 +13,8 @@ final class ChatUITests: XCTestCase {
         app.buttons["Send message"].tap()
         XCTAssertTrue(app.staticTexts["Native offline text"].waitForExistence(timeout: 10))
         XCTAssertTrue(app.staticTexts["Offline reply"].exists)
-        capture(app, "Native chat")
+        app.swipeDown()
+        capture(app, "Native chat standard Opal")
         XCTAssertFalse(app.buttons["End conversation"].exists)
         app.navigationBars.buttons.element(boundBy: 0).tap()
         app.buttons["Chat options"].tap()
@@ -23,7 +24,7 @@ final class ChatUITests: XCTestCase {
     }
     func testOfflineAdvancedLibraryAndArtifactEditor() {
         let app = XCUIApplication()
-        app.launchArguments = ["--ui-testing", "--reset-ui-testing", "--ui-chat"]
+        app.launchArguments = ["--ui-testing", "--reset-ui-testing", "--ui-chat", "-UIPreferredContentSizeCategoryName", "UICTContentSizeCategoryL"]
         app.launch()
         XCTAssertTrue(app.buttons["Chat options"].waitForExistence(timeout: 10))
         app.buttons["Chat options"].tap(); app.buttons["Library and tools"].tap()
@@ -47,7 +48,7 @@ final class ChatUITests: XCTestCase {
     }
     func testWorkspaceNativeFixture() {
         let app = XCUIApplication()
-        app.launchArguments = ["--ui-testing", "--reset-ui-testing", "--ui-chat"]
+        app.launchArguments = ["--ui-testing", "--reset-ui-testing", "--ui-chat", "-UIPreferredContentSizeCategoryName", "UICTContentSizeCategoryL"]
         app.launch()
         XCTAssertTrue(app.buttons["Chat options"].waitForExistence(timeout: 10))
         app.buttons["Chat options"].tap(); app.buttons["Manage workspaces"].tap()
@@ -57,6 +58,23 @@ final class ChatUITests: XCTestCase {
         XCTAssertTrue(app.buttons["Writing"].waitForExistence(timeout: 10))
         capture(app, "Native workspaces")
     }
+    func testStandardDarkChatScreenshot() {
+        let app = XCUIApplication()
+        app.launchArguments = ["--ui-testing", "--reset-ui-testing", "--ui-chat", "-UIPreferredContentSizeCategoryName", "UICTContentSizeCategoryL"]
+        app.launch()
+        XCTAssertTrue(app.buttons["Chat options"].waitForExistence(timeout: 10))
+        app.buttons["Chat options"].tap(); app.buttons["Appearance and model"].tap()
+        app.buttons.matching(NSPredicate(format: "label CONTAINS 'Appearance' AND label CONTAINS 'System'")).firstMatch.tap(); app.buttons["Dark"].tap()
+        app.buttons["Save appearance"].tap(); app.buttons["Done"].tap()
+        capture(app, "Native chat list dark standard")
+        app.buttons["New chat"].tap()
+        let field = app.textFields["chat-draft"]
+        XCTAssertTrue(field.waitForExistence(timeout: 10)); field.tap(); field.typeText("Dark mode fixture")
+        app.buttons["Send message"].tap()
+        XCTAssertTrue(app.staticTexts["Offline reply"].waitForExistence(timeout: 10))
+        app.swipeDown()
+        capture(app, "Native chat dark standard")
+    }
     func testChatLargeTextAndPreferences() {
         let app = XCUIApplication()
         app.launchArguments = ["--ui-testing", "--reset-ui-testing", "--ui-chat", "-UIPreferredContentSizeCategoryName", "UICTContentSizeCategoryAccessibilityXXXL"]

Voice.xcodeproj/project.pbxproj

@@ -16,6 +16,7 @@
 		2D1633BB6B8C3E7938A46A42 /* AuthTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 262B5A712708421C35ED6AC0 /* AuthTests.swift */; };
 		302BEC55CA9A10E49C307977 /* ServerConfig.swift in Sources */ = {isa = PBXBuildFile; fileRef = F5683993A1DE677121FFA1F3 /* ServerConfig.swift */; };
 		36DF44D9A7896F18A064847D /* ConversationView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3F3FA9F420065D2127B0AEC0 /* ConversationView.swift */; };
+		4AA89EFF10F261A3FCF8C366 /* ChatExport.swift in Sources */ = {isa = PBXBuildFile; fileRef = 14505F4DA9DB1610B2EEB271 /* ChatExport.swift */; };
 		4B9A3D956FB6CB7F6A231955 /* AuthClient.swift in Sources */ = {isa = PBXBuildFile; fileRef = DAC751BFB00B04C73D19C714 /* AuthClient.swift */; };
 		57E6476135CE30495E02D723 /* VoiceUITests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8309AC6885ED7EB0047AE211 /* VoiceUITests.swift */; };
 		5D37D5933765F80A283DC47B /* ChatStore.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6CBEDBE8C5065D716DAECDE2 /* ChatStore.swift */; };
@@ -69,6 +70,7 @@
 
 /* Begin PBXFileReference section */
 		0FC167F6658CFEC9546A7E9F /* AgentMonitor.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AgentMonitor.swift; sourceTree = "<group>"; };
+		14505F4DA9DB1610B2EEB271 /* ChatExport.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChatExport.swift; sourceTree = "<group>"; };
 		1CF5F1830927F8D44C4CC89A /* ChatViews.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChatViews.swift; sourceTree = "<group>"; };
 		20A82F8996DEA166C94A7956 /* ServerReplacementCoordinatorTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ServerReplacementCoordinatorTests.swift; sourceTree = "<group>"; };
 		262B5A712708421C35ED6AC0 /* AuthTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AuthTests.swift; sourceTree = "<group>"; };
@@ -204,6 +206,7 @@
 		94F63FF6C1F0CD224010E2F5 /* Chat */ = {
 			isa = PBXGroup;
 			children = (
+				14505F4DA9DB1610B2EEB271 /* ChatExport.swift */,
 				41286AD7E2621F77B4F7CC85 /* ChatFeatures.swift */,
 				96CFD3A353D5B5E4A97D263F /* ChatModels.swift */,
 				6CBEDBE8C5065D716DAECDE2 /* ChatStore.swift */,
@@ -398,6 +401,7 @@
 				C00D1878C2AB3D8B6F9562B6 /* AgentMonitor.swift in Sources */,
 				4B9A3D956FB6CB7F6A231955 /* AuthClient.swift in Sources */,
 				6488E54A6D93278C04D870E2 /* AuthStore.swift in Sources */,
+				4AA89EFF10F261A3FCF8C366 /* ChatExport.swift in Sources */,
 				29EF2C8C93F9A4270816D22D /* ChatFeatures.swift in Sources */,
 				5E4FBAAB530CA2BEEA013A57 /* ChatModels.swift in Sources */,
 				5D37D5933765F80A283DC47B /* ChatStore.swift in Sources */,

docs/PROJECT_STATUS.md

@@ -56,6 +56,20 @@ source signed build passed again at `/tmp/hope-chat-phone-final-build.log`. No i
 production requests, backend deployment or physical speech qualification occurred.
 Opt-in live TLS cases return without probes in offline suite and are not TLS proof.
 
+Native follow-up: named `.md`/`.json` conversation and `.md`/`.txt` artifact
+Transferable file exports preserve bytes and keep no persistent private cache;
+exports clear on conversation switch/logout. Basic markdown tables render selectable
+native rows. Polling uses weak account lifetime, teardown/deinit cancellation, and
+background stream cancellation with foreground replay. Explicit standard-size UI
+fixtures now distinguish default screenshots from XXXL accessibility fixtures.
+Follow-up **70 unit + 5 chat UI passed** at `/tmp/hope-chat-polish-final.xcresult`;
+signed current build passed `/tmp/hope-chat-phone-export-final.log`. Standard
+light/dark chat and dark list screenshots exported to
+`/tmp/hope-chat-standard-screenshots/` and inspected. Conversation captures retain
+the active keyboard; dark list capture shows full shell. Initial new dark UI test
+failed the combined native picker label and was corrected; failed bundle retained
+`/tmp/hope-chat-polish-tests.xcresult`. No hardware installation or live request.
+
 ## Approved Opal pink redesign — 2026-10-02
 
 User approved the Opal HTML direction with the existing square reactive persona.