fix: VLM guard rejects following-count as 'hallucinated nav tab' + back-press circuit breaker

Root cause: VLM Structural Guard enforced 'must be at bottom' for ALL
NAV_INTENT_KEYWORDS including 'following'/'follower'. But these are
profile stats at Y≈246 (top of screen), not nav tabs. The inner
_structural_sanity_check correctly checks for 'tab' in intent before
enforcing bottom-zone requirement — the VLM guard was inconsistent.

Fix 1: Align VLM guard with inner guard — only enforce bottom-zone
       requirement for intents explicitly containing 'tab'.

Fix 2: Add back-press circuit breaker (MAX_CONSECUTIVE_BACK=3). If GOAP
       presses back 3 times on the same screen without any transition,
       abort immediately to prevent exiting Instagram entirely.

95 unit tests pass.

GramAddict/core/goap.py

@@ -965,6 +965,8 @@ class GoalExecutor:
         steps_taken = []
         last_action = None
         last_screen_type = None
+        consecutive_back_presses = 0
+        MAX_CONSECUTIVE_BACK = 3
         explored_nav_actions = set()
         for step_num in range(max_steps):
             # PERCEIVE
@@ -976,6 +978,7 @@ class GoalExecutor:
                     f"📍 [GOAP State] Screen transitioned from {last_screen_type.name} to {screen_type.name}. Clearing explored actions."
                 )
                 explored_nav_actions.clear()
+                consecutive_back_presses = 0  # Progress was made
 
             # ── Loop Prevention: Mask Failed Actions ──
             MAX_RETRIES = 2
@@ -1044,6 +1047,19 @@ class GoalExecutor:
                 explored_nav_actions.add(action)
                 # Reset failures for this action since it eventually succeeded
                 self.action_failures[action] = 0
+
+                # ── Back-Press Circuit Breaker ──
+                if action == "press back":
+                    consecutive_back_presses += 1
+                    if consecutive_back_presses >= MAX_CONSECUTIVE_BACK:
+                        logger.error(
+                            f"🛑 [GOAP] Back-pressed {MAX_CONSECUTIVE_BACK} times with no screen transition. "
+                            f"Aborting goal '{goal}' to prevent app exit."
+                        )
+                        self.path_memory.learn_path(goal, start_screen, steps_taken, False)
+                        return False
+                else:
+                    consecutive_back_presses = 0
             else:
                 self.action_failures[action] = self.action_failures.get(action, 0) + 1
                 # Track failed actions in explored_nav_actions so the planner

GramAddict/core/telepathic_engine.py

@@ -2085,11 +2085,10 @@ class TelepathicEngine:
                 # NAVIGATION TAB ENFORCEMENT:
                 # Real navigation tabs (Home, Search, Reels, Store, Profile) are ALWAYS in the bottom zone.
                 # If the bot is looking for a tab, forbid results that are too high up (likely hallucinations on comments/feed).
-                if is_nav_intent:
-                    # Navigation tabs (Home, Search, Reels, News, Profile) are strictly at the bottom.
-                    # On many devices with virtual buttons, they are roughly at 0.94 - 0.98.
-                    # On full-screen gesture devices, they might be slightly higher.
-                    # We use 0.92 as a firm structural boundary.
+                # IMPORTANT: Only enforce for intents explicitly containing "tab".
+                # "following"/"follower" are profile stats at the TOP of the screen, not tabs.
+                # This aligns with _structural_sanity_check which has the same "tab" guard.
+                if is_nav_intent and "tab" in intent.lower():
                     if match.get("y", 0) < screen_height * 0.92:
                         logger.warning(
                             f"🛡️ [Structural Guard] VLM hallucinated a navigation tab '{intent}' "