fix(ios): recover the terminal render when a replay barrier fails open

Packages/Shared/CMUXMobileCore/Sources/CMUXMobileCore/MobileStateSyncRecords.swift

@@ -35,43 +35,6 @@ public struct MobileSyncCollectionID: RawRepresentable, Codable, Hashable, Senda
 /// `mobile.workspace.list` payload (same snake_case wire names) plus an
 /// explicit `sort_index` so list order syncs without positional inference.
 public struct WorkspaceSyncRecord: MobileSyncRecord {
-    /// One surface row within a workspace.
-    public struct Surface: Codable, Equatable, Sendable {
-        /// Stable surface identifier.
-        public let surfaceID: String
-        /// Open surface-kind wire string.
-        public let kind: String
-        /// User-facing surface title.
-        public let title: String
-        /// Backing file path for file-based surfaces, when reported.
-        public let filePath: String?
-        /// Bounded checklist/status payload for todo surfaces.
-        public let todo: MobileTodoSnapshot?
-
-        /// Creates a surface row from its wire fields.
-        public init(
-            surfaceID: String,
-            kind: String,
-            title: String,
-            filePath: String?,
-            todo: MobileTodoSnapshot? = nil
-        ) {
-            self.surfaceID = surfaceID
-            self.kind = kind
-            self.title = title
-            self.filePath = filePath
-            self.todo = todo
-        }
-
-        private enum CodingKeys: String, CodingKey {
-            case surfaceID = "surface_id"
-            case kind
-            case title
-            case filePath = "file_path"
-            case todo
-        }
-    }
-
     /// One terminal row within a workspace.
     public struct Terminal: Codable, Equatable, Sendable {
         /// Stable terminal identifier.
@@ -141,9 +104,6 @@ public struct WorkspaceSyncRecord: MobileSyncRecord {
     public let sortIndex: Int
     /// Terminal rows belonging to this workspace, in spatial order.
     public let terminals: [Terminal]
-    /// All surface rows belonging to this workspace, in spatial order.
-    /// `nil` when decoded from a Mac that predates surface inventory support.
-    public let surfaces: [Surface]?
     /// Simulator panes belonging to this workspace, in spatial order.
     public let simulators: [MobileSimulatorPanelDescriptor]
 
@@ -170,7 +130,6 @@ public struct WorkspaceSyncRecord: MobileSyncRecord {
         hasUnread: Bool,
         sortIndex: Int,
         terminals: [Terminal],
-        surfaces: [Surface]? = nil,
         simulators: [MobileSimulatorPanelDescriptor] = []
     ) {
         self.id = id
@@ -189,7 +148,6 @@ public struct WorkspaceSyncRecord: MobileSyncRecord {
         self.hasUnread = hasUnread
         self.sortIndex = sortIndex
         self.terminals = terminals
-        self.surfaces = surfaces
         self.simulators = simulators
     }
 
@@ -214,7 +172,6 @@ public struct WorkspaceSyncRecord: MobileSyncRecord {
         hasUnread = try container.decode(Bool.self, forKey: .hasUnread)
         sortIndex = try container.decode(Int.self, forKey: .sortIndex)
         terminals = try container.decode([Terminal].self, forKey: .terminals)
-        surfaces = try container.decodeIfPresent([Surface].self, forKey: .surfaces)
         simulators = try container.decodeIfPresent(
             [MobileSimulatorPanelDescriptor].self,
             forKey: .simulators
@@ -238,7 +195,6 @@ public struct WorkspaceSyncRecord: MobileSyncRecord {
         case hasUnread = "has_unread"
         case sortIndex = "sort_index"
         case terminals
-        case surfaces
         case simulators
     }
 }

Packages/Shared/CMUXMobileCore/Tests/CMUXMobileCoreTests/MobileStateSyncFrameCodingTests.swift

@@ -29,32 +29,6 @@ struct MobileStateSyncFrameCodingTests {
                     isReady: true,
                     isFocused: false
                 )
-            ],
-            surfaces: [
-                WorkspaceSyncRecord.Surface(
-                    surfaceID: "surface-future",
-                    kind: "simulator",
-                    title: "iPhone 17 Pro",
-                    filePath: nil
-                ),
-                WorkspaceSyncRecord.Surface(
-                    surfaceID: "surface-todo",
-                    kind: MobileSurfaceKind.todo.rawValue,
-                    title: "Todo",
-                    filePath: nil,
-                    todo: MobileTodoSnapshot(
-                        status: .needsAttention,
-                        statusHidden: false,
-                        items: [
-                            MobileTodoItem(
-                                id: "item-1",
-                                text: "Review the renderer",
-                                state: .inProgress,
-                                origin: .agent
-                            ),
-                        ]
-                    )
-                )
             ]
         )
     }
@@ -77,46 +51,6 @@ struct MobileStateSyncFrameCodingTests {
         let terminals = object["terminals"] as? [[String: Any]]
         #expect(terminals?.first?["is_ready"] as? Bool == true)
         #expect(terminals?.first?["is_focused"] as? Bool == false)
-        let surfaces = object["surfaces"] as? [[String: Any]]
-        #expect(surfaces?.first?["surface_id"] as? String == "surface-future")
-        #expect(surfaces?.first?["kind"] as? String == "simulator")
-        #expect(surfaces?.first?["file_path"] == nil)
-        let todo = surfaces?[1]["todo"] as? [String: Any]
-        #expect(todo?["status"] as? String == "needs-attention")
-        #expect(todo?["status_hidden"] as? Bool == false)
-        let items = todo?["items"] as? [[String: Any]]
-        #expect(items?.first?["id"] as? String == "item-1")
-        #expect(items?.first?["state"] as? String == "in_progress")
-        #expect(items?.first?["origin"] as? String == "agent")
-    }
-
-    @Test func mobileSurfaceKindPreservesUnknownRawValues() throws {
-        let kind = MobileSurfaceKind(rawValue: "simulator")
-        let data = try JSONEncoder().encode(kind)
-        #expect(String(decoding: data, as: UTF8.self) == #""simulator""#)
-        #expect(try JSONDecoder().decode(MobileSurfaceKind.self, from: data) == kind)
-    }
-
-    @Test func workspaceRecordWithoutSurfacesDecodesAndReencodesWithoutTheField() throws {
-        let json = #"{"id":"ws-old","title":"old","is_selected":false,"is_pinned":false,"last_activity_at":1,"has_unread":false,"sort_index":0,"terminals":[]}"#
-        let decoded = try MobileSyncFrameCoder().decode(
-            WorkspaceSyncRecord.self,
-            fromJSONString: json
-        )
-        #expect(decoded.surfaces == nil)
-        let object = try MobileSyncFrameCoder().jsonObject(from: decoded)
-        #expect(object["surfaces"] == nil)
-    }
-
-    @Test func workspaceRecordRoundTripsSurfaceInventory() throws {
-        let decoded = try JSONDecoder().decode(
-            WorkspaceSyncRecord.self,
-            from: JSONEncoder().encode(workspace)
-        )
-        #expect(decoded == workspace)
-        #expect(decoded.surfaces?.first?.kind == "simulator")
-        #expect(decoded.surfaces?[1].todo?.status == .needsAttention)
-        #expect(decoded.surfaces?[1].todo?.items.first?.state == .inProgress)
     }
 
     @Test func workspaceRecordDefaultsMissingDescriptionTruncatedFlagToFalse() throws {

Packages/Shared/CmuxAgentChat/Sources/CmuxAgentChat/Artifacts/ChatArtifactError.swift

@@ -65,9 +65,4 @@ public enum ChatArtifactError: Error, Sendable, Equatable {
     case macUnreachable
     /// The file exceeds the inline preview size limit.
     case tooLarge(limitBytes: Int64)
-    /// The Mac answered with an error this client does not recognize.
-    ///
-    /// Distinct from ``macUnreachable``: the connection worked and the Mac
-    /// replied, so messaging must not blame connectivity.
-    case unknown(code: String?)
 }