fix(android): refresh scoped canvas URLs without trailing slash

apps/android/app/src/test/java/ai/openclaw/android/gateway/GatewaySessionInvokeTimeoutTest.kt

@@ -22,4 +22,26 @@ class GatewaySessionInvokeTimeoutTest {
     assertEquals(120_000L, resolveInvokeResultAckTimeoutMs(121_000L))
     assertEquals(120_000L, resolveInvokeResultAckTimeoutMs(Long.MAX_VALUE))
   }
+
+  @Test
+  fun replaceCanvasCapabilityInScopedHostUrl_rewritesTerminalCapabilitySegment() {
+    assertEquals(
+      "http://127.0.0.1:18789/__openclaw__/cap/new-token",
+      replaceCanvasCapabilityInScopedHostUrl(
+        "http://127.0.0.1:18789/__openclaw__/cap/old-token",
+        "new-token",
+      ),
+    )
+  }
+
+  @Test
+  fun replaceCanvasCapabilityInScopedHostUrl_rewritesWhenQueryAndFragmentPresent() {
+    assertEquals(
+      "http://127.0.0.1:18789/__openclaw__/cap/new-token?a=1#frag",
+      replaceCanvasCapabilityInScopedHostUrl(
+        "http://127.0.0.1:18789/__openclaw__/cap/old-token?a=1#frag",
+        "new-token",
+      ),
+    )
+  }
 }