Reply-бар: Telegram-parity стилизация, alignment, preview-текст и cross-platform аудит

Rosetta/Core/Data/Repositories/MessageRepository.swift

@@ -339,16 +339,14 @@ final class MessageRepository: ObservableObject {
                     MessageRecord.Columns.account == myPublicKey &&
                     MessageRecord.Columns.messageId == messageId
                 ).fetchOne(db) {
-                    // Protect decrypted .messages blobs from being overwritten by encrypted sync copies.
+                    // Protect existing attachments from being wiped during sync.
-                    // If existing attachments have a valid JSON blob but new ones have encrypted ciphertext,
+                    // Android parity: never replace non-empty attachments with empty.
-                    // keep the existing (correctly decrypted) version.
                     let shouldPreserveAttachments: Bool = {
-                        guard existing.attachments != "[]" else { return false }
+                        guard existing.attachments != "[]", !existing.attachments.isEmpty else { return false }
-                        // If existing has a .messages blob that looks like valid JSON (starts with "["),
+                        // Never wipe existing attachments with empty data
-                        // and new blob looks like ciphertext (contains ":" from ivBase64:ctBase64),
+                        if attachmentsJSON == "[]" { return true }
-                        // preserve the existing data.
+                        // Protect decrypted .messages blobs from encrypted sync copies
                         if existing.attachments.contains("\"type\":1") || existing.attachments.contains("\"type\": 1") {
-                            // Existing has .messages attachment — check if new data would corrupt it
                             let existingHasDecrypted = existing.attachments.contains("\"message_id\"")
                             let newHasDecrypted = attachmentsJSON.contains("\"message_id\"")
                             if existingHasDecrypted && !newHasDecrypted { return true }

Rosetta/Core/Network/Protocol/Packets/Packet.swift

@@ -66,12 +66,19 @@ enum PacketRegistry {
 
 // MARK: - Attachment Types
 
-enum AttachmentType: Int, Codable {
+enum AttachmentType: Int, Codable, Sendable {
     case image = 0
     case messages = 1
     case file = 2
     case avatar = 3
     case call = 4
+
+    /// Android parity: `fromInt() ?: UNKNOWN`. Fallback to `.image` for unknown values
+    /// so a single unknown type doesn't crash the entire [MessageAttachment] array decode.
+    init(from decoder: Decoder) throws {
+        let raw = try decoder.singleValueContainer().decode(Int.self)
+        self = AttachmentType(rawValue: raw) ?? .image
+    }
 }
 
 struct MessageAttachment: Codable, Equatable {

Rosetta/Core/Services/CallActivityAttributes.swift

@@ -5,6 +5,8 @@ struct CallActivityAttributes: ActivityAttributes {
     let peerName: String
     let peerPublicKey: String
     let colorIndex: Int
+    /// Tiny avatar thumbnail (32x32 JPEG, ~1-2KB). Nil = show initials.
+    let avatarThumb: Data?
 
     struct ContentState: Codable, Hashable {
         let durationSec: Int

Rosetta/Core/Services/CallManager.swift

@@ -336,20 +336,26 @@ final class CallManager: NSObject, ObservableObject {
             print("[Call] LiveActivity DISABLED by user settings")
             return
         }
-        // Save peer avatar to App Group so widget extension can read it
+        // Create tiny avatar thumbnail (32x32) to embed directly in attributes (<4KB limit)
-        if let containerURL = FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: "group.com.rosetta.dev") {
+        var avatarThumb: Data?
-            let avatarURL = containerURL.appendingPathComponent("call_avatar.jpg")
+        if let avatar = AvatarRepository.shared.loadAvatar(publicKey: uiState.peerPublicKey) {
-            if let avatar = AvatarRepository.shared.loadAvatar(publicKey: uiState.peerPublicKey),
+            let thumbSize = CGSize(width: 32, height: 32)
-               let thumb = avatar.jpegData(compressionQuality: 0.4) {
+            UIGraphicsBeginImageContextWithOptions(thumbSize, false, 1.0)
-                try? thumb.write(to: avatarURL)
+            avatar.draw(in: CGRect(origin: .zero, size: thumbSize))
-            } else {
+            let tiny = UIGraphicsGetImageFromCurrentImageContext()
-                try? FileManager.default.removeItem(at: avatarURL)
+            UIGraphicsEndImageContext()
+            if let jpeg = tiny?.jpegData(compressionQuality: 0.5) {
+                avatarThumb = jpeg
+                print("[Call] Avatar thumb: \(jpeg.count) bytes (32x32)")
             }
+        } else {
+            print("[Call] No avatar for peer")
         }
         let attributes = CallActivityAttributes(
             peerName: uiState.displayName,
             peerPublicKey: uiState.peerPublicKey,
-            colorIndex: RosettaColors.avatarColorIndex(for: uiState.peerTitle, publicKey: uiState.peerPublicKey)
+            colorIndex: RosettaColors.avatarColorIndex(for: uiState.peerTitle, publicKey: uiState.peerPublicKey),
+            avatarThumb: avatarThumb
         )
         let state = CallActivityAttributes.ContentState(
             durationSec: uiState.durationSec,
@@ -371,6 +377,7 @@ final class CallManager: NSObject, ObservableObject {
 
     func updateLiveActivity() {
         guard let liveActivity, liveActivity.activityState == .active else { return }
+        // Avatar is embedded in attributes (set at startLiveActivity)
         let state = CallActivityAttributes.ContentState(
             durationSec: uiState.durationSec,
             isActive: uiState.phase == .active,
@@ -381,6 +388,8 @@ final class CallManager: NSObject, ObservableObject {
         }
     }
 
+    // Avatar is embedded directly in CallActivityAttributes (32x32 thumb)
+
     func endLiveActivity() {
         guard let liveActivity else { return }
         let finalState = CallActivityAttributes.ContentState(

Rosetta/Features/Calls/ActiveCallOverlayView.swift

@@ -73,7 +73,8 @@ struct ActiveCallOverlayView: View {
             AvatarView(
                 initials: peerInitials,
                 colorIndex: peerColorIndex,
-                size: 90
+                size: 90,
+                image: AvatarRepository.shared.loadAvatar(publicKey: state.peerPublicKey)
             )
         }
         .frame(width: 130, height: 130)

Rosetta/Features/Chats/ChatDetail/ChatDetailView.swift

@@ -1181,6 +1181,8 @@ private extension ChatDetailView {
         }
         if message.attachments.contains(where: { $0.type == .avatar }) { return "Avatar" }
         if message.attachments.contains(where: { $0.type == .messages }) { return "Forwarded message" }
+        // Android/Desktop parity: show "Call" for call attachments
+        if message.attachments.contains(where: { $0.type == .call }) { return "Call" }
         let trimmed = message.text.trimmingCharacters(in: .whitespacesAndNewlines)
         if !trimmed.isEmpty { return message.text }
         if !message.attachments.isEmpty { return "Attachment" }
@@ -1206,6 +1208,8 @@ private extension ChatDetailView {
             }
             if message.attachments.contains(where: { $0.type == .avatar }) { return "Avatar" }
             if message.attachments.contains(where: { $0.type == .messages }) { return "Forwarded message" }
+            // Android/Desktop parity: show "Call" for call attachments
+            if message.attachments.contains(where: { $0.type == .call }) { return "Call" }
             // No known attachment type — fall back to text
             let trimmed = message.text.trimmingCharacters(in: .whitespacesAndNewlines)
             if !trimmed.isEmpty { return message.text }
@@ -1217,17 +1221,17 @@ private extension ChatDetailView {
         #endif
 
         HStack(spacing: 0) {
-            RoundedRectangle(cornerRadius: 1.5)
+            RoundedRectangle(cornerRadius: 1.0)
                 .fill(RosettaColors.figmaBlue)
-                .frame(width: 3, height: 36)
+                .frame(width: 2, height: 36)
 
             VStack(alignment: .leading, spacing: 2) {
                 HStack(spacing: 0) {
                     Text("Reply to ")
                         .font(.system(size: 14, weight: .medium))
-                        .foregroundStyle(RosettaColors.Adaptive.textSecondary)
+                        .foregroundStyle(.white)
                     Text(senderName)
-                        .font(.system(size: 14, weight: .semibold))
+                        .font(.system(size: 14, weight: .medium))
                         .foregroundStyle(RosettaColors.figmaBlue)
                 }
                 .lineLimit(1)
@@ -1247,15 +1251,15 @@ private extension ChatDetailView {
                 }
             } label: {
                 Image(systemName: "xmark")
-                    .font(.system(size: 14, weight: .medium))
+                    .font(.system(size: 12, weight: .medium))
                     .foregroundStyle(RosettaColors.Adaptive.textSecondary)
-                    .frame(width: 30, height: 30)
+                    .frame(width: 44, height: 44)
             }
         }
-        .padding(.leading, 6)
+        .padding(.leading, 8) // align blue line with text cursor (6pt textView padding + 2pt inset)
-        .padding(.trailing, 4)
+        .padding(.trailing, 0)
-        .padding(.top, 6)
+        .padding(.top, 8)
-        .padding(.bottom, 4)
+        .padding(.bottom, 2) // tight gap to text input below
         .transition(.move(edge: .bottom).combined(with: .opacity))
     }
 

Rosetta/Features/Chats/ChatDetail/ComposerView.swift

@@ -125,15 +125,15 @@ final class ComposerView: UIView, UITextViewDelegate {
         replyBar.isHidden = true
 
         replyBlueBar.backgroundColor = UIColor(red: 0, green: 0x8B/255.0, blue: 1.0, alpha: 1)
-        replyBlueBar.layer.cornerRadius = 1.5
+        replyBlueBar.layer.cornerRadius = 1.0
         replyBar.addSubview(replyBlueBar)
 
         replyTitleLabel.font = .systemFont(ofSize: 14, weight: .medium)
-        replyTitleLabel.textColor = UIColor(white: 1, alpha: 0.6)
+        replyTitleLabel.textColor = .white
         replyTitleLabel.text = "Reply to "
         replyBar.addSubview(replyTitleLabel)
 
-        replySenderLabel.font = .systemFont(ofSize: 14, weight: .semibold)
+        replySenderLabel.font = .systemFont(ofSize: 14, weight: .medium)
         replySenderLabel.textColor = UIColor(red: 0, green: 0x8B/255.0, blue: 1.0, alpha: 1)
         replyBar.addSubview(replySenderLabel)
 
@@ -142,7 +142,7 @@ final class ComposerView: UIView, UITextViewDelegate {
         replyPreviewLabel.lineBreakMode = .byTruncatingTail
         replyBar.addSubview(replyPreviewLabel)
 
-        let xImage = UIImage(systemName: "xmark", withConfiguration: UIImage.SymbolConfiguration(pointSize: 14, weight: .medium))
+        let xImage = UIImage(systemName: "xmark", withConfiguration: UIImage.SymbolConfiguration(pointSize: 12, weight: .medium))
         replyCancelButton.setImage(xImage, for: .normal)
         replyCancelButton.tintColor = UIColor(white: 1, alpha: 0.6)
         replyCancelButton.addTarget(self, action: #selector(replyCancelTapped), for: .touchUpInside)
@@ -281,8 +281,8 @@ final class ComposerView: UIView, UITextViewDelegate {
         let w = bounds.width
         guard w > 0 else { return }
 
-        // Reply bar height
+        // Reply bar height (8 top + 36 bar + 2 bottom = tight gap to text)
-        let replyH: CGFloat = isReplyVisible ? 46 : 0 // 6 top + 36 bar + 4 bottom
+        let replyH: CGFloat = isReplyVisible ? 46 : 0
 
         // Text row height = textViewHeight (clamped)
         let textRowH = textViewHeight
@@ -366,21 +366,22 @@ final class ComposerView: UIView, UITextViewDelegate {
 
     private func layoutReplyBar(width: CGFloat, height: CGFloat) {
         guard height > 0 else { return }
-        let barX: CGFloat = 0
+        // barX=5 aligns blue line with text cursor: replyX(6)+5 = 11 = textX(9)+inset(2)
-        let barY: CGFloat = 6
+        let barX: CGFloat = 5
-        replyBlueBar.frame = CGRect(x: barX, y: barY, width: 3, height: 36)
+        let barY: CGFloat = 8
+        replyBlueBar.frame = CGRect(x: barX, y: barY, width: 2, height: 36)
 
-        let labelX: CGFloat = 3 + 8
+        let labelX: CGFloat = barX + 2 + 8 // blue line + spacing
         let titleSize = replyTitleLabel.sizeThatFits(CGSize(width: 200, height: 20))
         replyTitleLabel.frame = CGRect(x: labelX, y: barY + 2, width: titleSize.width, height: 17)
 
         let senderX = labelX + titleSize.width
-        let senderW = width - senderX - 34
+        let senderW = width - senderX - 44
         replySenderLabel.frame = CGRect(x: senderX, y: barY + 2, width: max(0, senderW), height: 17)
 
-        replyPreviewLabel.frame = CGRect(x: labelX, y: barY + 19, width: width - labelX - 34, height: 17)
+        replyPreviewLabel.frame = CGRect(x: labelX, y: barY + 19, width: width - labelX - 44, height: 17)
 
-        replyCancelButton.frame = CGRect(x: width - 30, y: barY, width: 30, height: 36)
+        replyCancelButton.frame = CGRect(x: width - 44, y: (height - 44) / 2, width: 44, height: 44)
     }
 
     // MARK: - Icon Helpers

Rosetta/Features/Chats/ChatDetail/MessageCellView.swift

@@ -592,6 +592,8 @@ struct MessageCellView: View, Equatable {
             if reply.attachments.contains(where: { $0.type == AttachmentType.messages.rawValue }) { return "Forwarded message" }
             if reply.attachments.contains(where: { $0.type == AttachmentType.file.rawValue }) { return "File" }
             if reply.attachments.contains(where: { $0.type == AttachmentType.avatar.rawValue }) { return "Avatar" }
+            // Android/Desktop parity: show "Call" for call attachments in reply quote
+            if reply.attachments.contains(where: { $0.type == AttachmentType.call.rawValue }) { return "Call" }
             return "Attachment"
         }()
         let accentColor = outgoing ? Color.white.opacity(0.5) : RosettaColors.figmaBlue

RosettaLiveActivityWidget/CallActivityAttributes.swift

@@ -5,6 +5,8 @@ struct CallActivityAttributes: ActivityAttributes {
     let peerName: String
     let peerPublicKey: String
     let colorIndex: Int
+    /// Tiny avatar thumbnail (32x32 JPEG, ~1-2KB). Nil = show initials.
+    let avatarThumb: Data?
 
     struct ContentState: Codable, Hashable {
         let durationSec: Int

RosettaLiveActivityWidget/CallLiveActivity.swift

@@ -2,21 +2,31 @@ import ActivityKit
 import SwiftUI
 import WidgetKit
 
-// Mantine v8 avatar tint colors (shade-6) — exact hex values, desktop parity
+// Mantine v8 avatar palette — exact hex parity with RosettaColors.avatarColors
-private let mantineTints: [Color] = [
+// tint = shade-6, text = shade-3
-    Color(red: 34/255,  green: 139/255, blue: 230/255), // #228be6 blue
+
-    Color(red: 21/255,  green: 170/255, blue: 191/255), // #15aabf cyan
+private struct AvatarPalette {
-    Color(red: 190/255, green: 75/255,  blue: 219/255), // #be4bdb grape
+    let tint: Color
-    Color(red: 64/255,  green: 192/255, blue: 87/255),  // #40c057 green
+    let text: Color
-    Color(red: 76/255,  green: 110/255, blue: 245/255), // #4c6ef5 indigo
+}
-    Color(red: 130/255, green: 201/255, blue: 30/255),  // #82c91e lime
+
-    Color(red: 253/255, green: 126/255, blue: 20/255),  // #fd7e14 orange
+private let mantinePalette: [AvatarPalette] = [
-    Color(red: 230/255, green: 73/255,  blue: 128/255), // #e64980 pink
+    AvatarPalette(tint: Color(red: 0x22/255, green: 0x8B/255, blue: 0xE6/255), text: Color(red: 0x74/255, green: 0xC0/255, blue: 0xFC/255)), // blue
-    Color(red: 250/255, green: 82/255,  blue: 82/255),  // #fa5252 red
+    AvatarPalette(tint: Color(red: 0x15/255, green: 0xAA/255, blue: 0xBF/255), text: Color(red: 0x66/255, green: 0xD9/255, blue: 0xE8/255)), // cyan
-    Color(red: 18/255,  green: 184/255, blue: 134/255), // #12b886 teal
+    AvatarPalette(tint: Color(red: 0xBE/255, green: 0x4B/255, blue: 0xDB/255), text: Color(red: 0xE5/255, green: 0x99/255, blue: 0xF7/255)), // grape
-    Color(red: 121/255, green: 80/255,  blue: 242/255), // #7950f2 violet
+    AvatarPalette(tint: Color(red: 0x40/255, green: 0xC0/255, blue: 0x57/255), text: Color(red: 0x8C/255, green: 0xE9/255, blue: 0x9A/255)), // green
+    AvatarPalette(tint: Color(red: 0x4C/255, green: 0x6E/255, blue: 0xF5/255), text: Color(red: 0x91/255, green: 0xA7/255, blue: 0xFF/255)), // indigo
+    AvatarPalette(tint: Color(red: 0x82/255, green: 0xC9/255, blue: 0x1E/255), text: Color(red: 0xC0/255, green: 0xEB/255, blue: 0x75/255)), // lime
+    AvatarPalette(tint: Color(red: 0xFD/255, green: 0x7E/255, blue: 0x14/255), text: Color(red: 0xFF/255, green: 0xC0/255, blue: 0x78/255)), // orange
+    AvatarPalette(tint: Color(red: 0xE6/255, green: 0x49/255, blue: 0x80/255), text: Color(red: 0xFA/255, green: 0xA2/255, blue: 0xC1/255)), // pink
+    AvatarPalette(tint: Color(red: 0xFA/255, green: 0x52/255, blue: 0x52/255), text: Color(red: 0xFF/255, green: 0xA8/255, blue: 0xA8/255)), // red
+    AvatarPalette(tint: Color(red: 0x12/255, green: 0xB8/255, blue: 0x86/255), text: Color(red: 0x63/255, green: 0xE6/255, blue: 0xBE/255)), // teal
+    AvatarPalette(tint: Color(red: 0x79/255, green: 0x50/255, blue: 0xF2/255), text: Color(red: 0xB1/255, green: 0x97/255, blue: 0xFC/255)), // violet
 ]
 
+// Mantine dark body background
+private let mantineDarkBody = Color(red: 0x1A/255, green: 0x1B/255, blue: 0x1E/255)
+
 private let appGroupID = "group.com.rosetta.dev"
 
 @main
@@ -118,7 +128,7 @@ struct CallLiveActivity: Widget {
                     .padding(.top, 4)
                 }
             } compactLeading: {
-                avatarView(context: context, size: 26, fontSize: 10)
+                avatarView(context: context, size: 26, fontSize: 9)
             } compactTrailing: {
                 if context.state.isActive {
                     Text(fmt(context.state.durationSec))
@@ -137,36 +147,34 @@ struct CallLiveActivity: Widget {
         }
     }
 
-    // MARK: - Avatar
+    // MARK: - Avatar (Mantine "light" dark variant — matches AvatarView in main app)
 
     @ViewBuilder
     private func avatarView(context: ActivityViewContext<CallActivityAttributes>, size: CGFloat, fontSize: CGFloat) -> some View {
-        if let img = loadSharedAvatar() {
+        if let data = context.attributes.avatarThumb,
+           let img = UIImage(data: data) {
             Image(uiImage: img)
                 .resizable()
                 .scaledToFill()
                 .frame(width: size, height: size)
                 .clipShape(Circle())
         } else {
-            let idx = min(context.attributes.colorIndex, mantineTints.count - 1)
+            let idx = min(max(context.attributes.colorIndex, 0), mantinePalette.count - 1)
+            let palette = mantinePalette[idx]
             ZStack {
-                Circle().fill(mantineTints[max(0, idx)])
+                // Base: Mantine dark body
+                Circle().fill(mantineDarkBody)
+                // Overlay: tint at 15% opacity (dark mode)
+                Circle().fill(palette.tint.opacity(0.15))
+                // Initials: shade-3 text color
                 Text(makeInitials(context.attributes.peerName, context.attributes.peerPublicKey))
-                    .font(.system(size: fontSize, weight: .bold))
+                    .font(.system(size: fontSize, weight: .bold, design: .rounded))
-                    .foregroundColor(.white)
+                    .foregroundColor(palette.text)
             }
             .frame(width: size, height: size)
         }
     }
 
-    private func loadSharedAvatar() -> UIImage? {
-        guard let url = FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: appGroupID)?
-                .appendingPathComponent("call_avatar.jpg"),
-              let data = try? Data(contentsOf: url),
-              let img = UIImage(data: data) else { return nil }
-        return img
-    }
-
     // MARK: - Helpers
 
     private func fmt(_ sec: Int) -> String {

RosettaTests/ReplyPreviewTextTests.swift

@@ -0,0 +1,437 @@
+import XCTest
+@testable import Rosetta
+
+// MARK: - Reply Preview Text Tests (ChatDetailView.replyPreviewText parity)
+
+/// Tests for reply preview text logic — cross-platform parity with Android/Desktop.
+/// Android: `ChatDetailInput.kt` lines 653-679
+/// Desktop: `constructLastMessageTextByAttachments.ts`
+///
+/// Covers ALL 3 iOS display contexts:
+/// 1. Reply bar input — `ChatDetailView.replyPreviewText(for:)`
+/// 2. Reply bar render — `ChatDetailView.replyBar(for:)` inline closure
+/// 3. Reply quote bubble — `MessageCellView.replyQuoteView(reply:outgoing:)`
+/// Plus: chat list last message — `DialogRepository.updateDialogFromMessages()`
+final class ReplyPreviewTextTests: XCTestCase {
+
+    // MARK: - Helpers
+
+    /// Standalone replica of `ChatDetailView.replyPreviewText(for:)`.
+    /// Must match the real implementation exactly.
+    private func replyPreviewText(for message: ChatMessage) -> String {
+        if message.attachments.contains(where: { $0.type == .image }) {
+            let caption = message.text.trimmingCharacters(in: .whitespacesAndNewlines)
+            return caption.isEmpty ? "Photo" : caption
+        }
+        if let file = message.attachments.first(where: { $0.type == .file }) {
+            let caption = message.text.trimmingCharacters(in: .whitespacesAndNewlines)
+            if !caption.isEmpty { return caption }
+            let parsed = AttachmentPreviewCodec.parseFilePreview(file.preview)
+            if !parsed.fileName.isEmpty { return parsed.fileName }
+            return file.id.isEmpty ? "File" : file.id
+        }
+        if message.attachments.contains(where: { $0.type == .avatar }) { return "Avatar" }
+        if message.attachments.contains(where: { $0.type == .messages }) { return "Forwarded message" }
+        if message.attachments.contains(where: { $0.type == .call }) { return "Call" }
+        let trimmed = message.text.trimmingCharacters(in: .whitespacesAndNewlines)
+        if !trimmed.isEmpty { return message.text }
+        if !message.attachments.isEmpty { return "Attachment" }
+        return ""
+    }
+
+    /// Standalone replica of `MessageCellView.replyQuoteView` preview logic.
+    /// Uses `ReplyMessageData` + `ReplyAttachmentData` (Int type), not `MessageAttachment`.
+    private func replyQuotePreviewText(for reply: ReplyMessageData) -> String {
+        let trimmed = reply.message.trimmingCharacters(in: .whitespaces)
+        if !trimmed.isEmpty { return reply.message }
+        if reply.attachments.contains(where: { $0.type == AttachmentType.image.rawValue }) { return "Photo" }
+        if reply.attachments.contains(where: { $0.type == AttachmentType.messages.rawValue }) { return "Forwarded message" }
+        if reply.attachments.contains(where: { $0.type == AttachmentType.file.rawValue }) { return "File" }
+        if reply.attachments.contains(where: { $0.type == AttachmentType.avatar.rawValue }) { return "Avatar" }
+        if reply.attachments.contains(where: { $0.type == AttachmentType.call.rawValue }) { return "Call" }
+        return "Attachment"
+    }
+
+    /// Standalone replica of `DialogRepository.updateDialogFromMessages` preview logic.
+    private func chatListPreviewText(text: String, attachments: [MessageAttachment]) -> String {
+        let textIsEmpty = text.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty
+            || Self.isGarbageText(text)
+        if textIsEmpty, let firstAtt = attachments.first {
+            switch firstAtt.type {
+            case .image: return "Photo"
+            case .file: return "File"
+            case .avatar: return "Avatar"
+            case .messages: return "Forwarded message"
+            case .call: return "Call"
+            }
+        } else if textIsEmpty {
+            return ""
+        }
+        return text
+    }
+
+    /// Mirror of `DialogRepository.isGarbageText`.
+    private static func isGarbageText(_ text: String) -> Bool {
+        let trimmed = text.trimmingCharacters(in: .whitespacesAndNewlines)
+        if trimmed.isEmpty { return true }
+        let validCharacters = trimmed.unicodeScalars.filter { scalar in
+            scalar.value != 0xFFFD &&
+            scalar.value > 0x1F &&
+            scalar.value != 0x7F &&
+            !CharacterSet.controlCharacters.contains(scalar)
+        }
+        return validCharacters.isEmpty
+    }
+
+    private func makeMessage(
+        text: String = "",
+        attachments: [MessageAttachment] = []
+    ) -> ChatMessage {
+        ChatMessage(
+            id: UUID().uuidString,
+            fromPublicKey: "sender",
+            toPublicKey: "recipient",
+            text: text,
+            timestamp: Int64(Date().timeIntervalSince1970 * 1000),
+            deliveryStatus: .delivered,
+            isRead: true,
+            attachments: attachments
+        )
+    }
+
+    private func makeAttachment(type: AttachmentType, preview: String = "", id: String = "") -> MessageAttachment {
+        MessageAttachment(id: id.isEmpty ? UUID().uuidString : id, preview: preview, blob: "", type: type)
+    }
+
+    private func makeReply(
+        message: String = "",
+        attachments: [ReplyAttachmentData] = []
+    ) -> ReplyMessageData {
+        ReplyMessageData(
+            message_id: UUID().uuidString,
+            publicKey: "sender",
+            message: message,
+            timestamp: Int64(Date().timeIntervalSince1970 * 1000),
+            attachments: attachments
+        )
+    }
+
+    private func makeReplyAttachment(type: Int, preview: String = "") -> ReplyAttachmentData {
+        ReplyAttachmentData(id: UUID().uuidString, type: type, preview: preview, blob: "")
+    }
+
+    // =========================================================================
+    // MARK: - Reply Bar Preview (ChatDetailView.replyPreviewText)
+    // =========================================================================
+
+    // MARK: Photo
+
+    func testReplyBar_PhotoNoCaption() {
+        let msg = makeMessage(attachments: [makeAttachment(type: .image)])
+        XCTAssertEqual(replyPreviewText(for: msg), "Photo")
+    }
+
+    func testReplyBar_PhotoWithCaption() {
+        let msg = makeMessage(text: "Nice sunset", attachments: [makeAttachment(type: .image)])
+        XCTAssertEqual(replyPreviewText(for: msg), "Nice sunset")
+    }
+
+    func testReplyBar_PhotoWithWhitespaceCaption() {
+        let msg = makeMessage(text: "   \n  ", attachments: [makeAttachment(type: .image)])
+        XCTAssertEqual(replyPreviewText(for: msg), "Photo")
+    }
+
+    func testReplyBar_MultiplePhotos() {
+        let msg = makeMessage(attachments: [
+            makeAttachment(type: .image),
+            makeAttachment(type: .image),
+            makeAttachment(type: .image)
+        ])
+        XCTAssertEqual(replyPreviewText(for: msg), "Photo")
+    }
+
+    // MARK: File
+
+    func testReplyBar_FileWithFilename() {
+        let att = makeAttachment(type: .file, preview: "tag::12345::document.pdf")
+        let msg = makeMessage(attachments: [att])
+        XCTAssertEqual(replyPreviewText(for: msg), "document.pdf")
+    }
+
+    func testReplyBar_FileNoPreview() {
+        let att = makeAttachment(type: .file, id: "file_123")
+        let msg = makeMessage(attachments: [att])
+        XCTAssertEqual(replyPreviewText(for: msg), "file_123")
+    }
+
+    func testReplyBar_FileEmptyIdAndPreview() {
+        let att = MessageAttachment(id: "", preview: "", blob: "", type: .file)
+        let msg = makeMessage(attachments: [att])
+        XCTAssertEqual(replyPreviewText(for: msg), "File")
+    }
+
+    func testReplyBar_FileWithCaption() {
+        let att = makeAttachment(type: .file, preview: "tag::500::notes.txt")
+        let msg = makeMessage(text: "Here are the notes", attachments: [att])
+        XCTAssertEqual(replyPreviewText(for: msg), "Here are the notes")
+    }
+
+    // MARK: Avatar
+
+    func testReplyBar_Avatar() {
+        let msg = makeMessage(attachments: [makeAttachment(type: .avatar)])
+        XCTAssertEqual(replyPreviewText(for: msg), "Avatar")
+    }
+
+    // MARK: Forward
+
+    func testReplyBar_Forward() {
+        let msg = makeMessage(attachments: [makeAttachment(type: .messages)])
+        XCTAssertEqual(replyPreviewText(for: msg), "Forwarded message")
+    }
+
+    // MARK: Call (Android/Desktop parity)
+
+    func testReplyBar_Call() {
+        let msg = makeMessage(attachments: [makeAttachment(type: .call)])
+        XCTAssertEqual(replyPreviewText(for: msg), "Call")
+    }
+
+    // MARK: Text
+
+    func testReplyBar_TextOnly() {
+        let msg = makeMessage(text: "Hello world")
+        XCTAssertEqual(replyPreviewText(for: msg), "Hello world")
+    }
+
+    func testReplyBar_Empty() {
+        let msg = makeMessage()
+        XCTAssertEqual(replyPreviewText(for: msg), "")
+    }
+
+    // MARK: Priority
+
+    func testReplyBar_ImagePriorityOverCall() {
+        let msg = makeMessage(attachments: [
+            makeAttachment(type: .image),
+            makeAttachment(type: .call)
+        ])
+        XCTAssertEqual(replyPreviewText(for: msg), "Photo")
+    }
+
+    func testReplyBar_ImagePriorityOverFile() {
+        let msg = makeMessage(attachments: [
+            makeAttachment(type: .image),
+            makeAttachment(type: .file, preview: "tag::100::doc.pdf")
+        ])
+        XCTAssertEqual(replyPreviewText(for: msg), "Photo")
+    }
+
+    func testReplyBar_FilePriorityOverAvatar() {
+        let msg = makeMessage(attachments: [
+            makeAttachment(type: .file, preview: "tag::100::doc.pdf"),
+            makeAttachment(type: .avatar)
+        ])
+        XCTAssertEqual(replyPreviewText(for: msg), "doc.pdf")
+    }
+
+    // =========================================================================
+    // MARK: - Reply Quote Bubble (MessageCellView.replyQuoteView)
+    // =========================================================================
+
+    func testQuote_PhotoNoText() {
+        let reply = makeReply(attachments: [makeReplyAttachment(type: 0)])
+        XCTAssertEqual(replyQuotePreviewText(for: reply), "Photo")
+    }
+
+    func testQuote_PhotoWithText() {
+        let reply = makeReply(message: "Check this out", attachments: [makeReplyAttachment(type: 0)])
+        XCTAssertEqual(replyQuotePreviewText(for: reply), "Check this out")
+    }
+
+    func testQuote_File() {
+        let reply = makeReply(attachments: [makeReplyAttachment(type: 2)])
+        XCTAssertEqual(replyQuotePreviewText(for: reply), "File")
+    }
+
+    func testQuote_Avatar() {
+        let reply = makeReply(attachments: [makeReplyAttachment(type: 3)])
+        XCTAssertEqual(replyQuotePreviewText(for: reply), "Avatar")
+    }
+
+    func testQuote_Forward() {
+        let reply = makeReply(attachments: [makeReplyAttachment(type: 1)])
+        XCTAssertEqual(replyQuotePreviewText(for: reply), "Forwarded message")
+    }
+
+    func testQuote_Call() {
+        let reply = makeReply(attachments: [makeReplyAttachment(type: 4)])
+        XCTAssertEqual(replyQuotePreviewText(for: reply), "Call")
+    }
+
+    func testQuote_UnknownType() {
+        let reply = makeReply(attachments: [makeReplyAttachment(type: 99)])
+        XCTAssertEqual(replyQuotePreviewText(for: reply), "Attachment")
+    }
+
+    func testQuote_TextPriority() {
+        let reply = makeReply(message: "Some text", attachments: [makeReplyAttachment(type: 4)])
+        XCTAssertEqual(replyQuotePreviewText(for: reply), "Some text")
+    }
+
+    func testQuote_WhitespaceText() {
+        let reply = makeReply(message: "   ", attachments: [makeReplyAttachment(type: 0)])
+        XCTAssertEqual(replyQuotePreviewText(for: reply), "Photo")
+    }
+
+    // =========================================================================
+    // MARK: - Chat List Preview (DialogRepository)
+    // =========================================================================
+
+    func testChatList_Photo() {
+        XCTAssertEqual(chatListPreviewText(text: "", attachments: [makeAttachment(type: .image)]), "Photo")
+    }
+
+    func testChatList_File() {
+        XCTAssertEqual(chatListPreviewText(text: "", attachments: [makeAttachment(type: .file)]), "File")
+    }
+
+    func testChatList_Avatar() {
+        XCTAssertEqual(chatListPreviewText(text: "", attachments: [makeAttachment(type: .avatar)]), "Avatar")
+    }
+
+    func testChatList_Forward() {
+        XCTAssertEqual(chatListPreviewText(text: "", attachments: [makeAttachment(type: .messages)]), "Forwarded message")
+    }
+
+    func testChatList_Call() {
+        XCTAssertEqual(chatListPreviewText(text: "", attachments: [makeAttachment(type: .call)]), "Call")
+    }
+
+    func testChatList_TextWins() {
+        XCTAssertEqual(chatListPreviewText(text: "Hello", attachments: [makeAttachment(type: .image)]), "Hello")
+    }
+
+    func testChatList_EmptyNoAttachment() {
+        XCTAssertEqual(chatListPreviewText(text: "", attachments: []), "")
+    }
+
+    func testChatList_GarbageTextShowsAttachment() {
+        // U+FFFD replacement chars = garbage text → should show attachment label
+        let garbage = "\u{FFFD}\u{FFFD}\u{FFFD}"
+        XCTAssertEqual(chatListPreviewText(text: garbage, attachments: [makeAttachment(type: .image)]), "Photo")
+    }
+
+    func testChatList_ControlCharsShowsAttachment() {
+        let control = "\u{01}\u{02}\u{03}"
+        XCTAssertEqual(chatListPreviewText(text: control, attachments: [makeAttachment(type: .call)]), "Call")
+    }
+
+    // =========================================================================
+    // MARK: - AttachmentType JSON Decode Fault Tolerance
+    // =========================================================================
+
+    func testDecode_UnknownTypeFallsBackToImage() throws {
+        let json = #"[{"id":"test","preview":"","blob":"","type":99}]"#
+        let decoded = try JSONDecoder().decode([MessageAttachment].self, from: Data(json.utf8))
+        XCTAssertEqual(decoded.count, 1)
+        XCTAssertEqual(decoded[0].type, .image)
+    }
+
+    func testDecode_NegativeTypeFallsBackToImage() throws {
+        let json = #"[{"id":"test","preview":"","blob":"","type":-1}]"#
+        let decoded = try JSONDecoder().decode([MessageAttachment].self, from: Data(json.utf8))
+        XCTAssertEqual(decoded.count, 1)
+        XCTAssertEqual(decoded[0].type, .image)
+    }
+
+    func testDecode_MixedKnownAndUnknown() throws {
+        let json = #"[{"id":"a","preview":"","blob":"","type":0},{"id":"b","preview":"","blob":"","type":99}]"#
+        let decoded = try JSONDecoder().decode([MessageAttachment].self, from: Data(json.utf8))
+        XCTAssertEqual(decoded.count, 2)
+        XCTAssertEqual(decoded[0].type, .image)
+        XCTAssertEqual(decoded[1].type, .image)
+    }
+
+    func testDecode_AllKnownTypes() throws {
+        let json = """
+        [{"id":"a","preview":"","blob":"","type":0},\
+        {"id":"b","preview":"","blob":"","type":1},\
+        {"id":"c","preview":"","blob":"","type":2},\
+        {"id":"d","preview":"","blob":"","type":3},\
+        {"id":"e","preview":"","blob":"","type":4}]
+        """
+        let decoded = try JSONDecoder().decode([MessageAttachment].self, from: Data(json.utf8))
+        XCTAssertEqual(decoded.count, 5)
+        XCTAssertEqual(decoded[0].type, .image)
+        XCTAssertEqual(decoded[1].type, .messages)
+        XCTAssertEqual(decoded[2].type, .file)
+        XCTAssertEqual(decoded[3].type, .avatar)
+        XCTAssertEqual(decoded[4].type, .call)
+    }
+
+    func testDecode_EmptyArrayIsValid() throws {
+        let json = "[]"
+        let decoded = try JSONDecoder().decode([MessageAttachment].self, from: Data(json.utf8))
+        XCTAssertEqual(decoded.count, 0)
+    }
+
+    // MARK: - Encode → Decode Round-Trip
+
+    func testRoundTrip_AllTypes() throws {
+        let original: [MessageAttachment] = [
+            MessageAttachment(id: "1", preview: "tag::hash", blob: "data", type: .image),
+            MessageAttachment(id: "2", preview: "", blob: "", type: .messages),
+            MessageAttachment(id: "3", preview: "tag::500::doc.pdf", blob: "", type: .file),
+            MessageAttachment(id: "4", preview: "", blob: "", type: .avatar),
+            MessageAttachment(id: "5", preview: "60", blob: "", type: .call),
+        ]
+        let data = try JSONEncoder().encode(original)
+        let decoded = try JSONDecoder().decode([MessageAttachment].self, from: data)
+        XCTAssertEqual(decoded, original)
+    }
+
+    // =========================================================================
+    // MARK: - Cross-Context Consistency
+    // =========================================================================
+
+    /// Verify all 3 contexts produce the same label for each type when text is empty.
+    func testAllContextsAgree_Photo() {
+        let msg = makeMessage(attachments: [makeAttachment(type: .image)])
+        let reply = makeReply(attachments: [makeReplyAttachment(type: 0)])
+        XCTAssertEqual(replyPreviewText(for: msg), "Photo")
+        XCTAssertEqual(replyQuotePreviewText(for: reply), "Photo")
+        XCTAssertEqual(chatListPreviewText(text: "", attachments: msg.attachments), "Photo")
+    }
+
+    func testAllContextsAgree_File() {
+        // Note: reply bar shows filename, quote/chatlist show "File"
+        let reply = makeReply(attachments: [makeReplyAttachment(type: 2)])
+        XCTAssertEqual(replyQuotePreviewText(for: reply), "File")
+        XCTAssertEqual(chatListPreviewText(text: "", attachments: [makeAttachment(type: .file)]), "File")
+    }
+
+    func testAllContextsAgree_Avatar() {
+        let msg = makeMessage(attachments: [makeAttachment(type: .avatar)])
+        let reply = makeReply(attachments: [makeReplyAttachment(type: 3)])
+        XCTAssertEqual(replyPreviewText(for: msg), "Avatar")
+        XCTAssertEqual(replyQuotePreviewText(for: reply), "Avatar")
+        XCTAssertEqual(chatListPreviewText(text: "", attachments: msg.attachments), "Avatar")
+    }
+
+    func testAllContextsAgree_Forward() {
+        let msg = makeMessage(attachments: [makeAttachment(type: .messages)])
+        let reply = makeReply(attachments: [makeReplyAttachment(type: 1)])
+        XCTAssertEqual(replyPreviewText(for: msg), "Forwarded message")
+        XCTAssertEqual(replyQuotePreviewText(for: reply), "Forwarded message")
+        XCTAssertEqual(chatListPreviewText(text: "", attachments: msg.attachments), "Forwarded message")
+    }
+
+    func testAllContextsAgree_Call() {
+        let msg = makeMessage(attachments: [makeAttachment(type: .call)])
+        let reply = makeReply(attachments: [makeReplyAttachment(type: 4)])
+        XCTAssertEqual(replyPreviewText(for: msg), "Call")
+        XCTAssertEqual(replyQuotePreviewText(for: reply), "Call")
+        XCTAssertEqual(chatListPreviewText(text: "", attachments: msg.attachments), "Call")
+    }
+}