fix(behaviors): prevent rabbit hole from activating on non-feed screens and add tap post username context gate

GramAddict/core/behaviors/rabbit_hole.py

@@ -34,6 +34,16 @@ class RabbitHolePlugin(BehaviorPlugin):
         if res_score < 0.8:
             return False
 
+        screen_type = ctx.shared_state.get("current_screen_type")
+        if not screen_type and ctx.context_xml:
+            from GramAddict.core.perception.screen_identity import ScreenIdentity
+            screen_type = ScreenIdentity(getattr(ctx, "username", "")).identify(ctx.context_xml).get("screen_type")
+        
+        from GramAddict.core.perception.screen_identity import ScreenType
+        valid_screens = [ScreenType.HOME_FEED, ScreenType.EXPLORE_GRID, ScreenType.REELS_FEED]
+        if screen_type not in valid_screens:
+            return False
+
         config = self.get_config(ctx)
         percentage = float(config.get("percentage", 15))
         return random.random() < (percentage / 100.0)

GramAddict/core/perception/context_gate.py

@@ -67,6 +67,14 @@ ALLOWED_SCREENS: Dict[str, FrozenSet[ScreenType]] = {
             ScreenType.STORY_VIEW,  # toolbar_reshare_button exists on stories
         }
     ),
+    "tap post username": frozenset(
+        {
+            ScreenType.HOME_FEED,
+            ScreenType.POST_DETAIL,
+            ScreenType.REELS_FEED,
+            ScreenType.EXPLORE_GRID,
+        }
+    ),
 }
 
 # Intent keywords that trigger the categorical ban check