fix(core): add structural sanity guards to prevent post-related VLM hallucinations on search and profile screens

tests/unit/behaviors/test_comment_plugin.py

@@ -9,10 +9,8 @@ Tests CommentPlugin against real XML fixtures to ensure:
 import os
 from unittest.mock import MagicMock
 
-from GramAddict.core.behaviors import BehaviorContext
 from GramAddict.core.behaviors.comment import CommentPlugin
 
-
 FIX_DIR = os.path.join(os.path.dirname(os.path.dirname(os.path.dirname(__file__))), "fixtures")
 
 
@@ -46,10 +44,10 @@ def test_comment_plugin_can_activate_rejects_grids():
     ctx.configs.args = MagicMock(comment_percentage=100)
     ctx.configs.get_plugin_config.return_value = {}
     ctx.shared_state = {}
-    
+
     ctx.context_xml = _get_fixture("explore_feed_dump.xml")
     assert plugin.can_activate(ctx) is False, "CommentPlugin falsely activated on Explore Grid!"
-    
+
     ctx.context_xml = _get_fixture("user_profile_dump.xml")
     assert plugin.can_activate(ctx) is False, "CommentPlugin falsely activated on Profile Grid!"
 
@@ -60,42 +58,42 @@ def test_comment_plugin_fails_safely_without_writer():
     must abort safely and press BACK to exit the comment sheet.
     """
     plugin = CommentPlugin()
-    
+
     ctx = MagicMock()
     ctx.configs.get_plugin_config.return_value = {}
     ctx.cognitive_stack = {}  # No writer!
-    
+
     nav_graph = MagicMock()
     nav_graph.do.return_value = True  # Successfully opened comment sheet
     ctx.cognitive_stack["nav_graph"] = nav_graph
-    
+
     result = plugin.execute(ctx)
-    
+
     assert result.executed is False, "CommentPlugin must not execute without a writer!"
     ctx.device.press.assert_called_once_with("back")
 
 
 def test_comment_plugin_dry_run_exits_safely():
     """
-    Test: If dry_run is true, the plugin generates the text but presses BACK 
+    Test: If dry_run is true, the plugin generates the text but presses BACK
     to cancel posting.
     """
     plugin = CommentPlugin()
-    
+
     writer = MagicMock()
     writer.generate_comment.return_value = "Awesome!"
-    
+
     ctx = MagicMock()
     ctx.configs.get_plugin_config.return_value = {}
     ctx.cognitive_stack = {"writer": writer}
     ctx.configs.args = MagicMock(dry_run_comments=True)
-    
+
     nav_graph = MagicMock()
     nav_graph.do.return_value = True  # Successfully opened comment sheet
     ctx.cognitive_stack["nav_graph"] = nav_graph
-    
+
     result = plugin.execute(ctx)
-    
+
     assert result.executed is True, "Dry run is considered a successful execution."
     assert result.interactions == 0, "Dry run must yield 0 interactions."
     assert result.metadata["text"] == "Awesome!"

tests/unit/test_structural_guard.py

@@ -110,3 +110,41 @@ def test_structural_reels_first_grid_item_y_coords():
     assert (
         is_valid_nav is False
     ), "Structural Guard failed to reject a hallucinated navigation tab in the middle of the screen."
+
+def test_structural_guard_rejects_search_keyword_for_media_content():
+    engine = TelepathicEngine()
+    
+    node = {
+        "semantic_string": "text: 'i\\'m', id context: 'row search keyword title'",
+        "class_name": "android.widget.TextView",
+        "y": 500
+    }
+    
+    is_valid = engine._structural_sanity_check(node, "post media content", 2400)
+    assert is_valid is False, "Structural Guard failed to reject 'row_search_keyword_title' for 'post media content'."
+
+
+def test_structural_guard_rejects_search_user_for_post_username():
+    engine = TelepathicEngine()
+    
+    node = {
+        "semantic_string": "desc: 'Followed by pratiek_the_entrepreneur + 19 more', id context: 'row search user container'",
+        "class_name": "android.widget.LinearLayout",
+        "y": 800
+    }
+    
+    is_valid = engine._structural_sanity_check(node, "tap post username", 2400)
+    assert is_valid is False, "Structural Guard failed to reject 'row_search_user_container' for 'tap post username'."
+
+
+def test_structural_guard_rejects_follow_button_for_author_username_header():
+    engine = TelepathicEngine()
+    
+    node = {
+        "semantic_string": "text: 'Following', desc: 'Following Mariischen', id context: 'profile header follow button'",
+        "class_name": "android.widget.Button",
+        "y": 600
+    }
+    
+    is_valid = engine._structural_sanity_check(node, "post author username header", 2400)
+    assert is_valid is False, "Structural Guard failed to reject follow button for 'post author username header'."