refactor(android): remove orphan runtime accessors

apps/android/app/src/main/java/ai/openclaw/app/SecurePrefs.kt

@@ -393,12 +393,6 @@ class SecurePrefs(
     return stored?.takeIf { it.isNotEmpty() }
   }
 
-  /** Saves the paired gateway token under the current Android instance id. */
-  fun saveGatewayToken(token: String) {
-    val key = "gateway.token.${_instanceId.value}"
-    securePrefs.edit { putString(key, token.trim()) }
-  }
-
   /** Loads the bootstrap token used during gateway setup and device-token handoff. */
   fun loadGatewayBootstrapToken(): String? {
     val key = "gateway.bootstrapToken.${_instanceId.value}"

apps/android/app/src/main/java/ai/openclaw/app/SessionKey.kt

@@ -6,14 +6,6 @@ internal fun normalizeMainKey(raw: String?): String {
   return if (!trimmed.isNullOrEmpty()) trimmed else "main"
 }
 
-/** Accepts only gateway session keys that can represent the main chat stream. */
-internal fun isCanonicalMainSessionKey(raw: String?): Boolean {
-  val trimmed = raw?.trim().orEmpty()
-  if (trimmed.isEmpty()) return false
-  if (trimmed == "global") return true
-  return trimmed.startsWith("agent:")
-}
-
 /** Extracts the agent id from canonical agent-scoped main session keys. */
 internal fun resolveAgentIdFromMainSessionKey(raw: String?): String? {
   val trimmed = raw?.trim().orEmpty()

apps/android/app/src/main/java/ai/openclaw/app/gateway/GatewaySession.kt

@@ -260,24 +260,6 @@ class GatewaySession(
     currentConnection?.closeQuietly()
   }
 
-  fun currentCanvasHostUrl(): String? = pluginSurfaceUrls["canvas"]
-
-  /** Refreshes the canvas plugin surface URL and caches the normalized Android-reachable URL. */
-  suspend fun refreshCanvasHostUrl(timeoutMs: Long = 8_000): String? {
-    val refreshed =
-      refreshPluginSurfaceUrl(
-        method = "node.pluginSurface.refresh",
-        params = buildJsonObject { put("surface", JsonPrimitive("canvas")) },
-        timeoutMs = timeoutMs,
-      )
-    if (!refreshed.isNullOrBlank()) {
-      pluginSurfaceUrls = pluginSurfaceUrls + ("canvas" to refreshed)
-    }
-    return refreshed
-  }
-
-  fun currentMainSessionKey(): String? = mainSessionKey
-
   /** Sends a best-effort node.event and returns false instead of throwing on failure. */
   suspend fun sendNodeEvent(
     event: String,

apps/android/app/src/main/java/ai/openclaw/app/node/CanvasController.kt

@@ -97,8 +97,6 @@ class CanvasController {
 
   fun currentUrl(): String? = url
 
-  fun isDefaultCanvas(): Boolean = url == null
-
   fun setDebugStatusEnabled(enabled: Boolean) {
     debugStatusEnabled = enabled
     applyDebugStatus()
@@ -205,24 +203,6 @@ class CanvasController {
       }
     }
 
-  suspend fun snapshotPngBase64(maxWidth: Int?): String =
-    withContext(Dispatchers.Main) {
-      val wv = webView ?: throw IllegalStateException("no webview")
-      val bmp = wv.captureBitmap()
-      try {
-        val scaled = bmp.scaleForMaxWidth(maxWidth)
-        try {
-          val out = ByteArrayOutputStream()
-          scaled.compress(Bitmap.CompressFormat.PNG, 100, out)
-          Base64.encodeToString(out.toByteArray(), Base64.NO_WRAP)
-        } finally {
-          if (scaled !== bmp) scaled.recycle()
-        }
-      } finally {
-        bmp.recycle()
-      }
-    }
-
   /** Captures the WebView as PNG/JPEG base64 with optional width and quality bounds. */
   suspend fun snapshotBase64(
     format: SnapshotFormat,

apps/android/app/src/main/java/ai/openclaw/app/ui/OpenClawTheme.kt

@@ -67,9 +67,3 @@ fun overlayContainerColor(): Color {
   // Light mode keeps overlays away from pure-white glare on the app canvas.
   return if (isDark) base else base.copy(alpha = 0.88f)
 }
-
-/**
- * Overlay icon token kept next to overlayContainerColor for callers outside the design package.
- */
-@Composable
-fun overlayIconColor(): Color = MaterialTheme.colorScheme.onSurfaceVariant

apps/android/app/src/main/java/ai/openclaw/app/ui/SettingsSheet.kt

@@ -1253,16 +1253,6 @@ private fun settingsPrimaryButtonColors() =
     disabledContentColor = Color.White.copy(alpha = 0.9f),
   )
 
-/** Destructive button colors for permission and capability settings actions. */
-@Composable
-private fun settingsDangerButtonColors() =
-  ButtonDefaults.buttonColors(
-    containerColor = mobileDanger,
-    contentColor = Color.White,
-    disabledContainerColor = mobileDanger.copy(alpha = 0.45f),
-    disabledContentColor = Color.White.copy(alpha = 0.9f),
-  )
-
 /** Opens this app's Android settings page for permissions that require system UI. */
 private fun openAppSettings(context: Context) {
   val intent =