core, ui: persist "Remove link tracking" setting on database import

The privacySanitizeLinks preference was stored locally only and absent from
the AppSettings round-trip, so it was lost when migrating to another device
or after a fresh install + DB import. Add the field to the Haskell, Kotlin,
and Swift AppSettings payloads and wire it through iOS group defaults.

apps/ios/Shared/Model/AppAPITypes.swift

@@ -2122,6 +2122,7 @@ struct AppSettings: Codable, Equatable {
     var privacyAskToApproveRelays: Bool? = nil
     var privacyAcceptImages: Bool? = nil
     var privacyLinkPreviews: Bool? = nil
+    var privacySanitizeLinks: Bool? = nil
     var privacyShowChatPreviews: Bool? = nil
     var privacySaveLastDraft: Bool? = nil
     var privacyProtectScreen: Bool? = nil
@@ -2157,6 +2158,7 @@ struct AppSettings: Codable, Equatable {
         if privacyAskToApproveRelays != def.privacyAskToApproveRelays { empty.privacyAskToApproveRelays = privacyAskToApproveRelays }
         if privacyAcceptImages != def.privacyAcceptImages { empty.privacyAcceptImages = privacyAcceptImages }
         if privacyLinkPreviews != def.privacyLinkPreviews { empty.privacyLinkPreviews = privacyLinkPreviews }
+        if privacySanitizeLinks != def.privacySanitizeLinks { empty.privacySanitizeLinks = privacySanitizeLinks }
         if privacyShowChatPreviews != def.privacyShowChatPreviews { empty.privacyShowChatPreviews = privacyShowChatPreviews }
         if privacySaveLastDraft != def.privacySaveLastDraft { empty.privacySaveLastDraft = privacySaveLastDraft }
         if privacyProtectScreen != def.privacyProtectScreen { empty.privacyProtectScreen = privacyProtectScreen }
@@ -2193,6 +2195,7 @@ struct AppSettings: Codable, Equatable {
             privacyAskToApproveRelays: true,
             privacyAcceptImages: true,
             privacyLinkPreviews: true,
+            privacySanitizeLinks: false,
             privacyShowChatPreviews: true,
             privacySaveLastDraft: true,
             privacyProtectScreen: false,

apps/ios/Shared/Views/UserSettings/AppSettings.swift

@@ -38,6 +38,7 @@ extension AppSettings {
             privacyLinkPreviewsGroupDefault.set(val)
             def.setValue(val, forKey: DEFAULT_PRIVACY_LINK_PREVIEWS)
         }
+        if let val = privacySanitizeLinks { privacySanitizeLinksGroupDefault.set(val) }
         if let val = privacyShowChatPreviews { def.setValue(val, forKey: DEFAULT_PRIVACY_SHOW_CHAT_PREVIEWS) }
         if let val = privacySaveLastDraft { def.setValue(val, forKey: DEFAULT_PRIVACY_SAVE_LAST_DRAFT) }
         if let val = privacyProtectScreen { def.setValue(val, forKey: DEFAULT_PRIVACY_PROTECT_SCREEN) }
@@ -77,6 +78,7 @@ extension AppSettings {
         c.privacyAskToApproveRelays = privacyAskToApproveRelaysGroupDefault.get()
         c.privacyAcceptImages = privacyAcceptImagesGroupDefault.get()
         c.privacyLinkPreviews = privacyLinkPreviewsGroupDefault.get()
+        c.privacySanitizeLinks = privacySanitizeLinksGroupDefault.get()
         c.privacyShowChatPreviews = def.bool(forKey: DEFAULT_PRIVACY_SHOW_CHAT_PREVIEWS)
         c.privacySaveLastDraft = def.bool(forKey: DEFAULT_PRIVACY_SAVE_LAST_DRAFT)
         c.privacyProtectScreen = def.bool(forKey: DEFAULT_PRIVACY_PROTECT_SCREEN)

apps/ios/SimpleXChat/AppGroup.swift

@@ -237,6 +237,8 @@ public let privacyEncryptLocalFilesGroupDefault = BoolDefault(defaults: groupDef
 
 public let privacyAskToApproveRelaysGroupDefault = BoolDefault(defaults: groupDefaults, forKey: GROUP_DEFAULT_PRIVACY_ASK_TO_APPROVE_RELAYS)
 
+public let privacySanitizeLinksGroupDefault = BoolDefault(defaults: groupDefaults, forKey: GROUP_DEFAULT_PRIVACY_SANITIZE_LINKS)
+
 public let profileImageCornerRadiusGroupDefault = Default<Double>(defaults: groupDefaults, forKey: GROUP_DEFAULT_PROFILE_IMAGE_CORNER_RADIUS)
 
 public let ntfBadgeCountGroupDefault = IntDefault(defaults: groupDefaults, forKey: GROUP_DEFAULT_NTF_BADGE_COUNT)

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/model/SimpleXAPI.kt

@@ -8042,6 +8042,7 @@ data class AppSettings(
   var privacyAskToApproveRelays: Boolean? = null,
   var privacyAcceptImages: Boolean? = null,
   var privacyLinkPreviews: Boolean? = null,
+  var privacySanitizeLinks: Boolean? = null,
   var privacyChatListOpenLinks: PrivacyChatListOpenLinksMode? = null,
   var privacyShowChatPreviews: Boolean? = null,
   var privacySaveLastDraft: Boolean? = null,
@@ -8078,6 +8079,7 @@ data class AppSettings(
     if (privacyAskToApproveRelays != def.privacyAskToApproveRelays) { empty.privacyAskToApproveRelays = privacyAskToApproveRelays }
     if (privacyAcceptImages != def.privacyAcceptImages) { empty.privacyAcceptImages = privacyAcceptImages }
     if (privacyLinkPreviews != def.privacyLinkPreviews) { empty.privacyLinkPreviews = privacyLinkPreviews }
+    if (privacySanitizeLinks != def.privacySanitizeLinks) { empty.privacySanitizeLinks = privacySanitizeLinks }
     if (privacyChatListOpenLinks != def.privacyChatListOpenLinks) { empty.privacyChatListOpenLinks = privacyChatListOpenLinks }
     if (privacyShowChatPreviews != def.privacyShowChatPreviews) { empty.privacyShowChatPreviews = privacyShowChatPreviews }
     if (privacySaveLastDraft != def.privacySaveLastDraft) { empty.privacySaveLastDraft = privacySaveLastDraft }
@@ -8125,6 +8127,7 @@ data class AppSettings(
     privacyAskToApproveRelays?.let { def.privacyAskToApproveRelays.set(it) }
     privacyAcceptImages?.let { def.privacyAcceptImages.set(it) }
     privacyLinkPreviews?.let { def.privacyLinkPreviews.set(it) }
+    privacySanitizeLinks?.let { def.privacySanitizeLinks.set(it) }
     privacyChatListOpenLinks?.let { def.privacyChatListOpenLinks.set(it) }
     privacyShowChatPreviews?.let { def.privacyShowChatPreviews.set(it) }
     privacySaveLastDraft?.let { def.privacySaveLastDraft.set(it) }
@@ -8162,6 +8165,7 @@ data class AppSettings(
         privacyAskToApproveRelays = true,
         privacyAcceptImages = true,
         privacyLinkPreviews = true,
+        privacySanitizeLinks = false,
         privacyChatListOpenLinks = PrivacyChatListOpenLinksMode.ASK,
         privacyShowChatPreviews = true,
         privacySaveLastDraft = true,
@@ -8200,6 +8204,7 @@ data class AppSettings(
           privacyAskToApproveRelays = def.privacyAskToApproveRelays.get(),
           privacyAcceptImages = def.privacyAcceptImages.get(),
           privacyLinkPreviews = def.privacyLinkPreviews.get(),
+          privacySanitizeLinks = def.privacySanitizeLinks.get(),
           privacyChatListOpenLinks = def.privacyChatListOpenLinks.get(),
           privacyShowChatPreviews = def.privacyShowChatPreviews.get(),
           privacySaveLastDraft = def.privacySaveLastDraft.get(),

src/Simplex/Chat/AppSettings.hs

@@ -33,6 +33,7 @@ data AppSettings = AppSettings
     privacyAskToApproveRelays :: Maybe Bool,
     privacyAcceptImages :: Maybe Bool,
     privacyLinkPreviews :: Maybe Bool,
+    privacySanitizeLinks :: Maybe Bool,
     privacyShowChatPreviews :: Maybe Bool,
     privacySaveLastDraft :: Maybe Bool,
     privacyProtectScreen :: Maybe Bool,
@@ -83,6 +84,7 @@ defaultAppSettings =
       privacyAskToApproveRelays = Just True,
       privacyAcceptImages = Just True,
       privacyLinkPreviews = Just True,
+      privacySanitizeLinks = Just False,
       privacyShowChatPreviews = Just True,
       privacySaveLastDraft = Just True,
       privacyProtectScreen = Just False,
@@ -120,6 +122,7 @@ defaultParseAppSettings =
       privacyAskToApproveRelays = Nothing,
       privacyAcceptImages = Nothing,
       privacyLinkPreviews = Nothing,
+      privacySanitizeLinks = Nothing,
       privacyShowChatPreviews = Nothing,
       privacySaveLastDraft = Nothing,
       privacyProtectScreen = Nothing,
@@ -157,6 +160,7 @@ combineAppSettings platformDefaults storedSettings =
       privacyAskToApproveRelays = p privacyAskToApproveRelays,
       privacyAcceptImages = p privacyAcceptImages,
       privacyLinkPreviews = p privacyLinkPreviews,
+      privacySanitizeLinks = p privacySanitizeLinks,
       privacyShowChatPreviews = p privacyShowChatPreviews,
       privacySaveLastDraft = p privacySaveLastDraft,
       privacyProtectScreen = p privacyProtectScreen,
@@ -210,6 +214,7 @@ instance FromJSON AppSettings where
     privacyAskToApproveRelays <- p "privacyAskToApproveRelays"
     privacyAcceptImages <- p "privacyAcceptImages"
     privacyLinkPreviews <- p "privacyLinkPreviews"
+    privacySanitizeLinks <- p "privacySanitizeLinks"
     privacyShowChatPreviews <- p "privacyShowChatPreviews"
     privacySaveLastDraft <- p "privacySaveLastDraft"
     privacyProtectScreen <- p "privacyProtectScreen"
@@ -244,6 +249,7 @@ instance FromJSON AppSettings where
           privacyAskToApproveRelays,
           privacyAcceptImages,
           privacyLinkPreviews,
+          privacySanitizeLinks,
           privacyShowChatPreviews,
           privacySaveLastDraft,
           privacyProtectScreen,