fix(perception): correct device hierarchy method and add TDD guard

- Fixed AttributeError where device.get_hierarchy() was called instead of dump_hierarchy()
- Replaced MagicMock with a real DummyDeviceForKeyboardTest in E2E tests to adhere to the strict mock ban policy.
- Verified TelepathicEngine actively calls device.back() when keyboard is open on non-typing intents.

GramAddict/core/telepathic_engine.py

@@ -96,7 +96,7 @@ class TelepathicEngine:
                 device.back()
                 time.sleep(1.0)
                 # Re-fetch UI state
-                xml_string = device.get_hierarchy()
+                xml_string = device.dump_hierarchy()
                 if xml_string:
                     root = self._parser.parse(xml_string)
                     if root:

tests/e2e/test_keyboard_guard.py

@@ -195,3 +195,65 @@ class TestKeyboardContaminationGuard:
         assert (
             "comment_composer" not in (result.resource_id or "").lower()
         ), "REGRESSION: Resolver picked comment_composer instead of share button!"
+
+
+class TestTelepathicEngineKeyboardGuard:
+    def test_telepathic_engine_auto_dismisses_keyboard(self):
+        """
+        When the keyboard is detected in find_best_node for a non-typing intent,
+        the TelepathicEngine must actively call device.back() and re-fetch the XML
+        via device.dump_hierarchy().
+        """
+        from GramAddict.core.telepathic_engine import TelepathicEngine
+
+        class DummyDeviceForKeyboardTest:
+            def __init__(self):
+                self.back_called = False
+                self.dump_hierarchy_called = False
+                self.xml_without_keyboard = """<?xml version='1.0' encoding='UTF-8' standalone='yes' ?>
+                <hierarchy rotation="0">
+                    <node package="com.instagram.android" class="android.widget.FrameLayout" bounds="[0,0][1080,2400]">
+                        <node resource-id="com.instagram.android:id/row_feed_photo_profile_name" bounds="[100,400][400,440]" clickable="true" />
+                    </node>
+                </hierarchy>
+                """
+
+            def back(self):
+                self.back_called = True
+
+            def dump_hierarchy(self, compressed=False):
+                self.dump_hierarchy_called = True
+                return self.xml_without_keyboard
+
+        mock_device = DummyDeviceForKeyboardTest()
+
+        xml_with_keyboard = """<?xml version='1.0' encoding='UTF-8' standalone='yes' ?>
+        <hierarchy rotation="0">
+            <node package="com.instagram.android" class="android.widget.FrameLayout" bounds="[0,0][1080,2400]">
+                <node resource-id="com.instagram.android:id/row_feed_photo_profile_name" bounds="[100,400][400,440]" clickable="true" />
+            </node>
+            <node package="com.google.android.inputmethod.latin" class="android.widget.FrameLayout" bounds="[0,1500][1080,2400]">
+                <node resource-id="com.google.android.inputmethod.latin:id/B00" content-desc="Q" bounds="[0,1800][100,1900]" clickable="true" />
+            </node>
+        </hierarchy>
+        """
+
+        engine = TelepathicEngine()
+        
+        # We pass "tap post username" which is NOT a typing intent.
+        # It should trigger active dismissal.
+        result = engine.find_best_node(
+            xml_string=xml_with_keyboard,
+            intent_description="tap post username",
+            device=mock_device,
+            track=False
+        )
+
+        # Ensure device.back() was called
+        assert mock_device.back_called is True
+        # Ensure device.dump_hierarchy() was called to re-fetch
+        assert mock_device.dump_hierarchy_called is True
+        
+        # Result should still resolve to the profile name node
+        assert result is not None
+        assert "row_feed_photo_profile_name" in result.get("id", "")