finish SwiftData migration with @Query views

- Drive chat list, timeline and forward picker from SwiftData @Query
  instead of AppModel's in-memory arrays; inject the per-account
  ModelContext from RootView with an in-memory fallback.
- Physically delete locally deleted messages (context.delete) and
  purge rows marked deleted by older builds on store open, so @Query
  views never resurrect them.
- Delete the legacy JSON snapshot only after a successful import save
  and restore the completeUntilFirstUserAuthentication data protection
  attribute on the store file.
- Mirror the old ChatArchive tolerant decoding in LegacyArchiveImporter
  so snapshots from older schema versions (missing reactions,
  isGroupMessage, roster fields) still import.
- Cover the new behaviour in ArchiveStoreTests and guard it with new
  verify.sh invariants; update AGENTS.md, ARCHITECTURE.md and
  SECURITY.md.

Sources/Shared/Models/AppModel.swift

@@ -1,6 +1,7 @@
 import AVFoundation
 import Combine
 import Foundation
+import SwiftData
 import UniformTypeIdentifiers
 import WebRTC
 
@@ -73,6 +74,8 @@ final class AppModel: ObservableObject {
     private let mediaPreviewProcessor = MediaPreviewProcessor()
     private let mediaFileIO = MediaFileIO()
     private var store: ArchiveStore?
+    private var storeAccountJID: String?
+    private var fallbackContext: ModelContext?
     private var bootstrapTask: Task<Void, Never>?
     private var persistTask: Task<Void, Never>?
     private var watchSyncTask: Task<Void, Never>?
@@ -257,9 +260,37 @@ final class AppModel: ObservableObject {
         return entries
     }
 
+    /// The `ModelContext` injected into the SwiftUI environment so views
+    /// can read conversations and messages through `@Query`. Falls back to
+    /// an in-memory context when the on-disk store cannot be opened, keeping
+    /// the session usable without persistence.
+    var modelContext: ModelContext {
+        if let store { return store.context }
+        if let fallbackContext { return fallbackContext }
+        let schema = Schema([
+            Conversation.self,
+            ChatMessage.self,
+            ArchiveMetadata.self,
+        ])
+        let configuration = ModelConfiguration(schema: schema, isStoredInMemoryOnly: true)
+        let container = try! ModelContainer(for: schema, configurations: [configuration])
+        let context = ModelContext(container)
+        fallbackContext = context
+        return context
+    }
+
+    /// Opens the per-account SwiftData store before `account` is published so
+    /// the `@Query`-backed screens never render without a usable context.
+    private func prepareStore(for jid: String) {
+        guard store == nil || storeAccountJID != jid else { return }
+        store = try? ArchiveStore(accountJID: jid)
+        storeAccountJID = jid
+    }
+
     func bootstrap() async {
         guard !RuntimeEnvironment.isRunningTests else { return }
         guard let saved = preferences.load() else { return }
+        prepareStore(for: saved.normalizedJID)
         account = saved
         globalEncryptionEnabled = preferences.encryptionEnabled(for: saved.normalizedJID)
         typingIndicatorsEnabled = preferences.chatStatesEnabled(for: saved.normalizedJID)
@@ -270,6 +301,7 @@ final class AppModel: ObservableObject {
             guard let storedPassword = try credentials.password(for: saved.normalizedJID) else {
                 account = nil
                 store = nil
+                fallbackContext = nil
                 conversations = []
                 rosterContactJIDs = []
                 messages = []
@@ -281,6 +313,7 @@ final class AppModel: ObservableObject {
         } catch {
             account = nil
             store = nil
+            fallbackContext = nil
             conversations = []
             rosterContactJIDs = []
             messages = []
@@ -323,6 +356,7 @@ final class AppModel: ObservableObject {
             rosterContactJIDs = []
             resetMediaSendActivity()
             resetMediaPreviews()
+            prepareStore(for: account.normalizedJID)
             self.account = account
             globalEncryptionEnabled = preferences.encryptionEnabled(for: account.normalizedJID)
             typingIndicatorsEnabled = preferences.chatStatesEnabled(for: account.normalizedJID)
@@ -341,6 +375,7 @@ final class AppModel: ObservableObject {
             await xmpp.disconnect()
             self.account = nil
             store = nil
+            fallbackContext = nil
             conversations = []
             rosterContactJIDs = []
             messages = []
@@ -364,6 +399,7 @@ final class AppModel: ObservableObject {
         watchSyncTask?.cancel()
         watchSyncTask = nil
         store = nil
+        fallbackContext = nil
         account = nil
         conversations = []
         rosterContactJIDs = []
@@ -884,6 +920,7 @@ final class AppModel: ObservableObject {
 
         let affectedConversations = Set(selected.map(\.conversationID))
         for message in selected {
+            modelContext.delete(message)
             locallyDeletedMessageIDs.insert(
                 Self.localDeletionKey(
                     messageID: message.clientID,
@@ -2116,7 +2153,7 @@ final class AppModel: ObservableObject {
             }
         } else {
             let conversation = Conversation(jid: normalized, displayName: name)
-            store?.context.insert(conversation)
+            modelContext.insert(conversation)
             conversations.append(conversation)
         }
         if conversations.first(where: { $0.jid == normalized })?.isGroup != true {
@@ -2169,7 +2206,7 @@ final class AppModel: ObservableObject {
                 shouldAutojoin: shouldAutojoin,
                 invitedBy: invitedBy
             )
-            store?.context.insert(conversation)
+            modelContext.insert(conversation)
             conversations.append(conversation)
         }
         if !isApplyingArchiveBatch {
@@ -2555,8 +2592,8 @@ final class AppModel: ObservableObject {
                 // `merged` is the freshly-created incoming message; replace the
                 // previously managed object with it so SwiftData does not keep
                 // an orphaned duplicate of the same clientID.
-                store?.context.delete(previous)
-                store?.context.insert(merged)
+                modelContext.delete(previous)
+                modelContext.insert(merged)
             }
             if let stanzaID = merged.stanzaID {
                 messageIndexByStanzaKey[
@@ -2575,7 +2612,7 @@ final class AppModel: ObservableObject {
             updateConversationPreview(for: merged, incrementUnread: false)
             return false
         }
-        store?.context.insert(message)
+        modelContext.insert(message)
         messages.append(message)
         let insertedIndex = messages.index(before: messages.endIndex)
         messageIndexByStorageKey[
@@ -2757,8 +2794,9 @@ final class AppModel: ObservableObject {
     private func loadArchive(for jid: String) async {
         resetArchiveBatchState()
         resetMediaPreviews()
-        guard let store = try? ArchiveStore(accountJID: jid) else {
-            self.store = nil
+        prepareStore(for: jid)
+        guard let store else {
+            fallbackContext = nil
             return
         }
         self.store = store
@@ -3058,7 +3096,7 @@ final class AppModel: ObservableObject {
     }
 
     private static func localDeletionKey(messageID: String, conversationID: String) -> String {
-        conversationID.lowercased() + "\u{1F}" + messageID
+        ArchiveStore.deletionKey(messageID: messageID, conversationID: conversationID)
     }
 }
 

Sources/Shared/Persistence/ArchiveStore.swift

@@ -43,8 +43,10 @@ final class ArchiveStore {
         container = try ModelContainer(for: schema, configurations: [configuration])
         context = ModelContext(container)
         context.autosaveEnabled = false
+        applyDataProtection()
 
         migrateLegacyJSONIfNeeded()
+        purgeLocallyDeletedMessages()
     }
 
     func load() -> Loaded {
@@ -86,6 +88,7 @@ final class ArchiveStore {
             MAMCheckpointEntry(key: $0.key, checkpoint: $0.value)
         }
         try context.save()
+        applyDataProtection()
     }
 
     func erase() throws {
@@ -121,11 +124,58 @@ final class ArchiveStore {
         metadata.lastSuccessfulMAMSync = imported.lastSuccessfulMAMSync
         metadata.lastSuccessfulMAMCursor = imported.lastSuccessfulMAMCursor
         metadata.mamCheckpoints = imported.mamCheckpoints
-        try? context.save()
+        do {
+            try context.save()
+        } catch {
+            // The imported rows stay pending in memory so this session keeps
+            // the history, but the legacy JSON remains on disk as the only
+            // durable copy until a save actually succeeds.
+            return
+        }
+        applyDataProtection()
         try? FileManager.default.removeItem(at: legacyJSONURL)
     }
 
-    private static func stableHash(_ value: String) -> String {
+    /// Removes rows that older builds only marked as locally deleted (the
+    /// legacy snapshot filtered them at load time). `@Query`-based views read
+    /// the store directly, so these rows must physically disappear.
+    func purgeLocallyDeletedMessages() {
+        let metadata = fetchMetadata()
+        let deletedKeys = Set(metadata.locallyDeletedMessageIDs)
+        guard !deletedKeys.isEmpty else { return }
+        let messages = (try? context.fetch(FetchDescriptor<ChatMessage>())) ?? []
+        var removedAny = false
+        for message in messages {
+            let key = Self.deletionKey(
+                messageID: message.clientID,
+                conversationID: message.conversationID
+            )
+            guard deletedKeys.contains(key) else { continue }
+            context.delete(message)
+            removedAny = true
+        }
+        if removedAny {
+            try? context.save()
+            applyDataProtection()
+        }
+    }
+
+    /// Key format shared with `AppModel.localDeletionKey`:
+    /// `<conversationID>\u{1F}<messageID>`.
+    static func deletionKey(messageID: String, conversationID: String) -> String {
+        conversationID.lowercased() + "\u{1F}" + messageID
+    }
+
+    private func applyDataProtection() {
+#if os(iOS)
+        try? FileManager.default.setAttributes(
+            [.protectionKey: FileProtectionType.completeUntilFirstUserAuthentication],
+            ofItemAtPath: storeURL.path
+        )
+#endif
+    }
+
+    static func stableHash(_ value: String) -> String {
         let hash = value.lowercased().utf8.reduce(UInt64(14_695_981_039_346_656_037)) { partial, byte in
             (partial ^ UInt64(byte)) &* 1_099_511_628_211
         }

Sources/Shared/Persistence/LegacyArchiveImporter.swift

@@ -2,6 +2,9 @@ import Foundation
 
 /// Reads the legacy JSON snapshot and converts it into SwiftData `@Model`
 /// objects once, so existing history survives the migration from the JSON file.
+/// Decoding mirrors the tolerant decoders of the removed `ChatArchive`:
+/// every field that was ever optional or added later falls back to a default,
+/// so snapshots written by older schema versions still import.
 enum LegacyArchiveImporter {
     struct LegacyConversation: Codable {
         enum Kind: String, Codable { case direct, group }
@@ -20,6 +23,80 @@ enum LegacyArchiveImporter {
         var shouldAutojoin: Bool
         var occupantCount: Int
         var invitedBy: String?
+
+        init(
+            id: String,
+            jid: String,
+            displayName: String,
+            lastMessage: String,
+            lastActivity: Date,
+            unreadCount: Int,
+            isOnline: Bool,
+            isPinned: Bool,
+            encryptionPreference: EncryptionPreference,
+            kind: Kind,
+            groupNickname: String? = nil,
+            isGroupJoined: Bool,
+            shouldAutojoin: Bool,
+            occupantCount: Int,
+            invitedBy: String? = nil
+        ) {
+            self.id = id
+            self.jid = jid
+            self.displayName = displayName
+            self.lastMessage = lastMessage
+            self.lastActivity = lastActivity
+            self.unreadCount = unreadCount
+            self.isOnline = isOnline
+            self.isPinned = isPinned
+            self.encryptionPreference = encryptionPreference
+            self.kind = kind
+            self.groupNickname = groupNickname
+            self.isGroupJoined = isGroupJoined
+            self.shouldAutojoin = shouldAutojoin
+            self.occupantCount = occupantCount
+            self.invitedBy = invitedBy
+        }
+
+        private enum CodingKeys: String, CodingKey {
+            case id
+            case jid
+            case displayName
+            case lastMessage
+            case lastActivity
+            case unreadCount
+            case isOnline
+            case isPinned
+            case encryptionPreference
+            case kind
+            case groupNickname
+            case isGroupJoined
+            case shouldAutojoin
+            case occupantCount
+            case invitedBy
+        }
+
+        init(from decoder: Decoder) throws {
+            let values = try decoder.container(keyedBy: CodingKeys.self)
+            jid = try values.decode(String.self, forKey: .jid)
+            id = try values.decodeIfPresent(String.self, forKey: .id) ?? jid.lowercased()
+            displayName = try values.decode(String.self, forKey: .displayName)
+            lastMessage = try values.decode(String.self, forKey: .lastMessage)
+            lastActivity = try values.decode(Date.self, forKey: .lastActivity)
+            unreadCount = try values.decode(Int.self, forKey: .unreadCount)
+            isOnline = try values.decode(Bool.self, forKey: .isOnline)
+            isPinned = try values.decode(Bool.self, forKey: .isPinned)
+            encryptionPreference = try values.decodeIfPresent(
+                EncryptionPreference.self,
+                forKey: .encryptionPreference
+            ) ?? .inheritGlobal
+            kind = try values.decodeIfPresent(Kind.self, forKey: .kind) ?? .direct
+            groupNickname = try values.decodeIfPresent(String.self, forKey: .groupNickname)
+            isGroupJoined = try values.decodeIfPresent(Bool.self, forKey: .isGroupJoined) ?? false
+            shouldAutojoin = try values.decodeIfPresent(Bool.self, forKey: .shouldAutojoin) ?? false
+            occupantCount = max(0, try values.decodeIfPresent(Int.self, forKey: .occupantCount) ?? 0)
+            invitedBy = try values.decodeIfPresent(String.self, forKey: .invitedBy)
+        }
     }
 
     struct LegacyMessage: Codable {
@@ -56,9 +133,133 @@ enum LegacyArchiveImporter {
         var isGroupMessage: Bool
         var callHistory: CallHistoryMetadata?
         var reactions: [MessageReaction]
+
+        init(
+            id: String,
+            conversationID: String,
+            senderJID: String,
+            body: String,
+            timestamp: Date,
+            direction: Direction,
+            delivery: Delivery,
+            security: Security,
+            kind: Kind,
+            remoteAttachmentURL: String? = nil,
+            localFilename: String? = nil,
+            mimeType: String? = nil,
+            duration: TimeInterval? = nil,
+            byteCount: Int? = nil,
+            encryptionFingerprint: String? = nil,
+            editedAt: Date? = nil,
+            replyToID: String? = nil,
+            replyToJID: String? = nil,
+            replyPreview: String? = nil,
+            forwardedFrom: String? = nil,
+            retractedAt: Date? = nil,
+            originID: String? = nil,
+            stanzaID: String? = nil,
+            senderDisplayName: String? = nil,
+            isGroupMessage: Bool = false,
+            callHistory: CallHistoryMetadata? = nil,
+            reactions: [MessageReaction] = []
+        ) {
+            self.id = id
+            self.conversationID = conversationID
+            self.senderJID = senderJID
+            self.body = body
+            self.timestamp = timestamp
+            self.direction = direction
+            self.delivery = delivery
+            self.security = security
+            self.kind = kind
+            self.remoteAttachmentURL = remoteAttachmentURL
+            self.localFilename = localFilename
+            self.mimeType = mimeType
+            self.duration = duration
+            self.byteCount = byteCount
+            self.encryptionFingerprint = encryptionFingerprint
+            self.editedAt = editedAt
+            self.replyToID = replyToID
+            self.replyToJID = replyToJID
+            self.replyPreview = replyPreview
+            self.forwardedFrom = forwardedFrom
+            self.retractedAt = retractedAt
+            self.originID = originID
+            self.stanzaID = stanzaID
+            self.senderDisplayName = senderDisplayName
+            self.isGroupMessage = isGroupMessage
+            self.callHistory = callHistory
+            self.reactions = reactions
+        }
+
+        private enum CodingKeys: String, CodingKey {
+            case id
+            case conversationID
+            case senderJID
+            case body
+            case timestamp
+            case direction
+            case delivery
+            case security
+            case kind
+            case remoteAttachmentURL
+            case localFilename
+            case mimeType
+            case duration
+            case byteCount
+            case encryptionFingerprint
+            case editedAt
+            case replyToID
+            case replyToJID
+            case replyPreview
+            case forwardedFrom
+            case retractedAt
+            case originID
+            case stanzaID
+            case senderDisplayName
+            case isGroupMessage
+            case callHistory
+            case reactions
+        }
+
+        init(from decoder: Decoder) throws {
+            let values = try decoder.container(keyedBy: CodingKeys.self)
+            id = try values.decode(String.self, forKey: .id)
+            conversationID = try values.decode(String.self, forKey: .conversationID).lowercased()
+            senderJID = try values.decode(String.self, forKey: .senderJID)
+            body = try values.decode(String.self, forKey: .body)
+            timestamp = try values.decode(Date.self, forKey: .timestamp)
+            direction = try values.decode(Direction.self, forKey: .direction)
+            delivery = try values.decode(Delivery.self, forKey: .delivery)
+            security = try values.decode(Security.self, forKey: .security)
+            kind = try values.decode(Kind.self, forKey: .kind)
+            remoteAttachmentURL = try values.decodeIfPresent(String.self, forKey: .remoteAttachmentURL)
+            localFilename = try values.decodeIfPresent(String.self, forKey: .localFilename)
+            mimeType = try values.decodeIfPresent(String.self, forKey: .mimeType)
+            duration = try values.decodeIfPresent(TimeInterval.self, forKey: .duration)
+            byteCount = try values.decodeIfPresent(Int.self, forKey: .byteCount)
+            encryptionFingerprint = try values.decodeIfPresent(
+                String.self,
+                forKey: .encryptionFingerprint
+            )
+            editedAt = try values.decodeIfPresent(Date.self, forKey: .editedAt)
+            replyToID = try values.decodeIfPresent(String.self, forKey: .replyToID)
+            replyToJID = try values.decodeIfPresent(String.self, forKey: .replyToJID)
+            replyPreview = try values.decodeIfPresent(String.self, forKey: .replyPreview)
+            forwardedFrom = try values.decodeIfPresent(String.self, forKey: .forwardedFrom)
+            retractedAt = try values.decodeIfPresent(Date.self, forKey: .retractedAt)
+            originID = try values.decodeIfPresent(String.self, forKey: .originID)
+            stanzaID = try values.decodeIfPresent(String.self, forKey: .stanzaID)
+            senderDisplayName = try values.decodeIfPresent(String.self, forKey: .senderDisplayName)
+            isGroupMessage = try values.decodeIfPresent(Bool.self, forKey: .isGroupMessage) ?? false
+            callHistory = try values.decodeIfPresent(CallHistoryMetadata.self, forKey: .callHistory)
+            reactions = try values.decodeIfPresent([MessageReaction].self, forKey: .reactions) ?? []
+        }
     }
 
     struct Snapshot: Codable {
+        static let currentSchemaVersion = 6
+
         var schemaVersion: Int
         var conversations: [LegacyConversation]
         var messages: [LegacyMessage]
@@ -67,6 +268,62 @@ enum LegacyArchiveImporter {
         var lastSuccessfulMAMSync: Date?
         var lastSuccessfulMAMCursor: String?
         var mamCheckpoints: [MAMArchiveKey: MAMArchiveCheckpoint]
+
+        init(
+            conversations: [LegacyConversation],
+            messages: [LegacyMessage],
+            locallyDeletedMessageIDs: Set<String> = [],
+            rosterContactJIDs: Set<String> = [],
+            lastSuccessfulMAMSync: Date? = nil,
+            lastSuccessfulMAMCursor: String? = nil,
+            mamCheckpoints: [MAMArchiveKey: MAMArchiveCheckpoint] = [:]
+        ) {
+            self.schemaVersion = Self.currentSchemaVersion
+            self.conversations = conversations
+            self.messages = messages
+            self.locallyDeletedMessageIDs = locallyDeletedMessageIDs
+            self.rosterContactJIDs = rosterContactJIDs
+            self.lastSuccessfulMAMSync = lastSuccessfulMAMSync
+            self.lastSuccessfulMAMCursor = lastSuccessfulMAMCursor
+            self.mamCheckpoints = mamCheckpoints
+        }
+
+        private enum CodingKeys: String, CodingKey {
+            case schemaVersion
+            case conversations
+            case messages
+            case locallyDeletedMessageIDs
+            case rosterContactJIDs
+            case lastSuccessfulMAMSync
+            case lastSuccessfulMAMCursor
+            case mamCheckpoints
+        }
+
+        init(from decoder: Decoder) throws {
+            let values = try decoder.container(keyedBy: CodingKeys.self)
+            schemaVersion = try values.decodeIfPresent(Int.self, forKey: .schemaVersion) ?? 1
+            conversations = try values.decode([LegacyConversation].self, forKey: .conversations)
+            messages = try values.decode([LegacyMessage].self, forKey: .messages)
+            locallyDeletedMessageIDs = try values.decodeIfPresent(
+                Set<String>.self,
+                forKey: .locallyDeletedMessageIDs
+            ) ?? []
+            rosterContactJIDs = try values.decodeIfPresent(
+                Set<String>.self,
+                forKey: .rosterContactJIDs
+            ) ?? []
+            lastSuccessfulMAMSync = try values.decodeIfPresent(
+                Date.self,
+                forKey: .lastSuccessfulMAMSync
+            )
+            lastSuccessfulMAMCursor = ArchiveSyncCheckpoint.normalizedCursor(
+                try values.decodeIfPresent(String.self, forKey: .lastSuccessfulMAMCursor)
+            )
+            mamCheckpoints = try values.decodeIfPresent(
+                [MAMArchiveKey: MAMArchiveCheckpoint].self,
+                forKey: .mamCheckpoints
+            ) ?? [:]
+        }
     }
 
     struct Imported {

Sources/Shared/UI/ChatView.swift

@@ -2,6 +2,7 @@ import CoreTransferable
 import Foundation
 import ImageIO
 import PhotosUI
+import SwiftData
 import SwiftUI
 import UniformTypeIdentifiers
 
@@ -67,6 +68,65 @@ struct ChatView: View {
     @State private var captureAttemptID = UUID()
     @State private var captureStartTask: Task<Void, Never>?
     @State private var captureSuspendsArchiveSync = false
+    @State private var timelineEntries: [ChatTimelineEntry] = []
+
+    /// Messages of this conversation straight from the SwiftData store,
+    /// ordered like `AppModel.selectedMessages`: timestamp, then clientID.
+    @Query private var messages: [ChatMessage]
+
+    init(model: AppModel, conversation: Conversation) {
+        self.model = model
+        self.conversation = conversation
+        let conversationJID = conversation.jid
+        _messages = Query(
+            filter: #Predicate<ChatMessage> { message in
+                message.conversationID == conversationJID
+            },
+            sort: [
+                SortDescriptor(\ChatMessage.timestamp, order: .forward),
+                SortDescriptor(\ChatMessage.clientID, order: .forward),
+            ]
+        )
+        _audioRecorder = StateObject(wrappedValue: AudioMessageRecorder())
+        _isComposerFocused = FocusState()
+        _draft = State(initialValue: "")
+        _showingFileImporter = State(initialValue: false)
+        _fileImportMode = State(initialValue: FileImportMode.files)
+        _showingEncryption = State(initialValue: false)
+        _showingVideoNoteRecorder = State(initialValue: false)
+        _videoNoteIsSending = State(initialValue: false)
+        _showingMediaPicker = State(initialValue: false)
+        _showingPhotoCamera = State(initialValue: false)
+        _photoCameraIsPreparingResult = State(initialValue: false)
+        _showingLocationPicker = State(initialValue: false)
+        _showingGroupInfo = State(initialValue: false)
+        _showingAttachmentPreview = State(initialValue: false)
+        _attachmentPreviewPresentationPending = State(initialValue: false)
+        _attachmentPreviewPresentationTask = State<Task<Void, Never>?>(initialValue: nil)
+        _pickedMediaItems = State<[PhotosPickerItem]>(initialValue: [])
+        _attachmentDrafts = State<[AttachmentDraft]>(initialValue: [])
+        _isPreparingAttachments = State(initialValue: false)
+        _editingMessageID = State<String?>(initialValue: nil)
+        _replyingToMessageID = State<String?>(initialValue: nil)
+        _forwardingSelection = State<MessageForwardSelection?>(initialValue: nil)
+        _selectedMessageIDs = State<Set<String>>(initialValue: [])
+        _destructiveAction = State<MessageDestructiveAction?>(initialValue: nil)
+        _replyThreadSelection = State<ReplyThreadSelection?>(initialValue: nil)
+        _emojiPickerPresentation = State<EmojiPickerPresentation?>(initialValue: nil)
+        _hasCompletedInitialScroll = State(initialValue: false)
+        _isNearTimelineBottom = State(initialValue: true)
+        _historyLoadAnchorID = State<String?>(initialValue: nil)
+        _historyTopTriggerArmed = State(initialValue: true)
+        _activeCaptureMode = State<ComposerCaptureMode?>(initialValue: nil)
+        _preparingCaptureMode = State<ComposerCaptureMode?>(initialValue: nil)
+        _captureGestureIsActive = State(initialValue: false)
+        _captureIsLocked = State(initialValue: false)
+        _captureDragTranslation = State(initialValue: CGSize.zero)
+        _captureAttemptID = State(initialValue: UUID())
+        _captureStartTask = State<Task<Void, Never>?>(initialValue: nil)
+        _captureSuspendsArchiveSync = State(initialValue: false)
+        _timelineEntries = State<[ChatTimelineEntry]>(initialValue: [])
+    }
 
     var body: some View {
         VStack(spacing: 0) {
@@ -352,13 +412,16 @@ struct ChatView: View {
         model.selectedMessages.filter { selectedMessageIDs.contains($0.clientID) }
     }
 
+    private func rebuildTimelineEntries(from newMessages: [ChatMessage]? = nil) {
+        timelineEntries = ChatTimelineEntry.make(from: newMessages ?? messages)
+    }
+
     private var isSelectingMessages: Bool {
         !selectedMessageIDs.isEmpty
     }
 
     private var messageTimeline: some View {
         ScrollViewReader { proxy in
-            let timelineEntries = model.selectedTimelineEntries
             GeometryReader { viewport in
                 ZStack(alignment: .bottomTrailing) {
                     ScrollView {
@@ -468,6 +531,12 @@ struct ChatView: View {
                         .scrollDismissesKeyboard(.interactively)
                     #endif
                     .coordinateSpace(name: Self.timelineCoordinateSpace)
+                    .onAppear {
+                        rebuildTimelineEntries()
+                    }
+                    .onChange(of: messages) { _, newMessages in
+                        rebuildTimelineEntries(from: newMessages)
+                    }
                     #if os(macOS)
                         .onPreferenceChange(TimelineBottomYPreferenceKey.self) { bottomY in
                             updateTimelineBottomProximity(

Sources/Shared/UI/ForwardMessageView.swift

@@ -1,3 +1,4 @@
+import SwiftData
 import SwiftUI
 
 @MainActor
@@ -10,6 +11,9 @@ struct ForwardMessageView: View {
     @State private var destinationJID = ""
     @State private var isForwarding = false
 
+    /// SwiftData-backed destination list, ordered like the main chat list.
+    @Query private var conversations: [Conversation]
+
     init(
         model: AppModel,
         messages: [ChatMessage],
@@ -18,6 +22,11 @@ struct ForwardMessageView: View {
         _model = ObservedObject(wrappedValue: model)
         self.messages = messages.filter(\.canBeForwarded)
         self.onComplete = onComplete
+        _conversations = Query(
+            sort: [
+                SortDescriptor(\Conversation.lastActivity, order: .reverse),
+            ]
+        )
     }
 
     var body: some View {
@@ -39,9 +48,9 @@ struct ForwardMessageView: View {
                     }
                 }
 
-                if !model.conversations.isEmpty {
+                if !orderedConversations.isEmpty {
                     Section("Чаты") {
-                        ForEach(model.conversations) { conversation in
+                        ForEach(orderedConversations) { conversation in
                             Button {
                                 forward(to: conversation.jid)
                             } label: {
@@ -105,6 +114,14 @@ struct ForwardMessageView: View {
 #endif
     }
 
+    /// Pinned-first ordering, matching the main chat list.
+    private var orderedConversations: [Conversation] {
+        conversations.sorted { lhs, rhs in
+            if lhs.isPinned != rhs.isPinned { return lhs.isPinned }
+            return lhs.lastActivity > rhs.lastActivity
+        }
+    }
+
     private func forward(to jid: String) {
         guard !isForwarding, !messages.isEmpty else { return }
         isForwarding = true

Sources/Shared/UI/MainChatView.swift

@@ -1,4 +1,5 @@
 import Foundation
+import SwiftData
 import SwiftUI
 
 struct MainChatView: View {
@@ -21,27 +22,45 @@ struct MainChatView: View {
     @State private var showingNewGroup = false
     @State private var showingSettings = false
 
+    /// SwiftData-backed chat list. The query orders by last activity;
+    /// `filteredConversations` applies the pinned-first ordering that matches
+    /// `AppModel.sortConversations` (`Bool` is not `Comparable`, so pinning
+    /// cannot be a `SortDescriptor`).
+    @Query(
+        sort: [
+            SortDescriptor(\Conversation.lastActivity, order: .reverse),
+        ]
+    )
+    private var conversations: [Conversation]
+
     private var filteredConversations: [Conversation] {
-        guard !searchText.isEmpty else { return model.conversations }
-        return model.conversations.filter(matchesSearch)
+        let source = searchText.isEmpty ? conversations : conversations.filter(matchesSearch)
+        return source.sorted(by: conversationSort)
+    }
+
+    private func conversationSort(_ lhs: Conversation, _ rhs: Conversation) -> Bool {
+        if lhs.isPinned != rhs.isPinned { return lhs.isPinned }
+        if lhs.lastActivity != rhs.lastActivity { return lhs.lastActivity > rhs.lastActivity }
+        return lhs.displayName.localizedCaseInsensitiveCompare(rhs.displayName)
+            == .orderedAscending
     }
 
     private var filteredRosterContacts: [Conversation] {
-        model.conversations
+        conversations
             .filter { !$0.isGroup && model.rosterContactJIDs.contains($0.jid) }
             .filter { searchText.isEmpty || matchesSearch($0) }
             .sorted(by: contactSort)
     }
 
     private var filteredGroupContacts: [Conversation] {
-        model.conversations
+        conversations
             .filter { $0.isGroup }
             .filter { searchText.isEmpty || matchesSearch($0) }
             .sorted(by: contactSort)
     }
 
     private var hasStoredContacts: Bool {
-        !model.rosterContactJIDs.isEmpty || model.conversations.contains { $0.isGroup }
+        !model.rosterContactJIDs.isEmpty || conversations.contains { $0.isGroup }
     }
 
     var body: some View {

Sources/Shared/UI/RootView.swift

@@ -1,4 +1,5 @@
 import QuickLook
+import SwiftData
 import SwiftUI
 
 struct RootView: View {
@@ -11,6 +12,7 @@ struct RootView: View {
                     LoginView(model: model)
                 } else {
                     MainChatView(model: model)
+                        .environment(\.modelContext, model.modelContext)
                 }
             }