feat(brand): disable upstream self-updater, add attribution and NOTICE

The GitHub release checker would install Hy4ri/hermes-mobile APKs; the About
screen now points to https://turkservis.online/indir and credits the original
project.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01B8ppceaR5s6cvMnm7uGRnf

app/src/main/java/com/m57/hermescontrol/data/update/UpdateNoticeManager.kt

@@ -37,7 +37,10 @@ object UpdateNoticeManager {
      * disabled in debug builds (BuildConfig.DEBUG) so daily dev builds never
      * hit the GitHub API or nag about updates. Tests flip this to true.
      */
-    var enabled: Boolean = !BuildConfig.DEBUG
+    // AITURK: off in every build. The upstream checker installs Hy4ri/hermes-mobile
+    // release APKs (different package id and signing key); AITURK Mobil builds are
+    // published at https://turkservis.online/indir.
+    var enabled: Boolean = false
         internal set
 
     /** Avoid duplicate foreground checks in one process; a cold launch always rechecks. */

app/src/main/java/com/m57/hermescontrol/ui/settings/components/AboutSection.kt

@@ -24,9 +24,12 @@ import androidx.compose.ui.unit.dp
 import com.m57.hermescontrol.BuildConfig
 import com.m57.hermescontrol.R
 import com.m57.hermescontrol.data.update.AppUpdateState
+import com.m57.hermescontrol.data.update.UpdateNoticeManager
 import com.m57.hermescontrol.ui.settings.InfoRow
 import com.m57.hermescontrol.ui.settings.SectionCard
 
+private const val AITURK_DOWNLOAD_URL = "https://turkservis.online/indir"
+
 @Composable
 internal fun AboutSection(
     updateState: AppUpdateState = AppUpdateState.Idle,
@@ -55,21 +58,31 @@ internal fun AboutSection(
             label = stringResource(R.string.settings_about_version),
             value = "v${BuildConfig.VERSION_NAME} (${BuildConfig.VERSION_CODE})",
         )
-        UpdateRow(
-            state = updateState,
-            onCheckUpdate = onCheckUpdate,
-            onStartUpdate = onStartUpdate,
-            onOpenInstallSettings = onOpenInstallSettings,
-        )
-        ReleaseCandidateRow(
-            checked = checkReleaseCandidateUpdates,
-            // Mid-download / mid-install the channel must not flip under the
-            // in-flight APK.
-            enabled =
-                updateState !is AppUpdateState.Downloading &&
-                    updateState !is AppUpdateState.Installing,
-            onCheckedChange = onCheckReleaseCandidateUpdatesChange,
-        )
+        // AITURK: the upstream GitHub self-updater is switched off
+        // (UpdateNoticeManager.enabled = false); new builds ship from the
+        // AITURK download page instead.
+        if (UpdateNoticeManager.enabled) {
+            UpdateRow(
+                state = updateState,
+                onCheckUpdate = onCheckUpdate,
+                onStartUpdate = onStartUpdate,
+                onOpenInstallSettings = onOpenInstallSettings,
+            )
+            ReleaseCandidateRow(
+                checked = checkReleaseCandidateUpdates,
+                // Mid-download / mid-install the channel must not flip under the
+                // in-flight APK.
+                enabled =
+                    updateState !is AppUpdateState.Downloading &&
+                        updateState !is AppUpdateState.Installing,
+                onCheckedChange = onCheckReleaseCandidateUpdatesChange,
+            )
+        } else {
+            InfoRow(
+                label = stringResource(R.string.settings_about_download),
+                value = AITURK_DOWNLOAD_URL,
+            )
+        }
         InfoRow(
             label = stringResource(R.string.settings_about_build),
             value =
@@ -87,6 +100,14 @@ internal fun AboutSection(
         }
 
         Spacer(modifier = Modifier.height(12.dp))
+        Text(
+            text = stringResource(R.string.settings_about_attribution),
+            style =
+                MaterialTheme.typography.bodySmall.copy(
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                ),
+        )
+        Spacer(modifier = Modifier.height(4.dp))
         Text(
             text = "https://github.com/Hy4ri/hermes-mobile",
             style =