fix(security): harden discovery routing and TLS pins

apps/android/app/src/test/java/ai/openclaw/android/node/ConnectionManagerTest.kt

@@ -0,0 +1,77 @@
+package ai.openclaw.android.node
+
+import ai.openclaw.android.gateway.GatewayEndpoint
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNull
+import org.junit.Test
+
+class ConnectionManagerTest {
+  @Test
+  fun resolveTlsParamsForEndpoint_prefersStoredPinOverAdvertisedFingerprint() {
+    val endpoint =
+      GatewayEndpoint(
+        stableId = "_openclaw-gw._tcp.|local.|Test",
+        name = "Test",
+        host = "10.0.0.2",
+        port = 18789,
+        tlsEnabled = true,
+        tlsFingerprintSha256 = "attacker",
+      )
+
+    val params =
+      ConnectionManager.resolveTlsParamsForEndpoint(
+        endpoint,
+        storedFingerprint = "legit",
+        manualTlsEnabled = false,
+      )
+
+    assertEquals("legit", params?.expectedFingerprint)
+    assertEquals(false, params?.allowTOFU)
+  }
+
+  @Test
+  fun resolveTlsParamsForEndpoint_doesNotTrustAdvertisedFingerprintWhenNoStoredPin() {
+    val endpoint =
+      GatewayEndpoint(
+        stableId = "_openclaw-gw._tcp.|local.|Test",
+        name = "Test",
+        host = "10.0.0.2",
+        port = 18789,
+        tlsEnabled = true,
+        tlsFingerprintSha256 = "attacker",
+      )
+
+    val params =
+      ConnectionManager.resolveTlsParamsForEndpoint(
+        endpoint,
+        storedFingerprint = null,
+        manualTlsEnabled = false,
+      )
+
+    assertNull(params?.expectedFingerprint)
+    assertEquals(true, params?.allowTOFU)
+  }
+
+  @Test
+  fun resolveTlsParamsForEndpoint_manualRespectsManualTlsToggle() {
+    val endpoint = GatewayEndpoint.manual(host = "example.com", port = 443)
+
+    val off =
+      ConnectionManager.resolveTlsParamsForEndpoint(
+        endpoint,
+        storedFingerprint = null,
+        manualTlsEnabled = false,
+      )
+    assertNull(off)
+
+    val on =
+      ConnectionManager.resolveTlsParamsForEndpoint(
+        endpoint,
+        storedFingerprint = null,
+        manualTlsEnabled = true,
+      )
+    assertNull(on?.expectedFingerprint)
+    assertEquals(true, on?.allowTOFU)
+  }
+}
+