fix: eliminate 3 critical nav failures — DM guard, GOAP unlearn, ad escape

- Extract NAV_INTENT_KEYWORDS constant (DRY) with 'direct message', 'inbox',
  'dm', 'notification', 'heart icon' to fix structural guard self-sabotage
  where 'tap direct message icon inbox' was rejected as non-nav intent
- Add goal-achieved pre-check in GOAP _execute_recalled_path to skip
  stale paths when the bot is already on the target screen
- Add already-there detection in _execute_action to prevent false unlearning
  when navigation produces no UI change because goal is already met
- Implement 3-tier ad escape cascade: normal skip -> double scroll -> GOAP
  force-navigate to HomeFeed after 6+ consecutive ad cycles
- 92 unit tests pass, 223/224 integration tests pass (1 pre-existing flaky)

scripts/wipe_qdrant.py

@@ -0,0 +1,36 @@
+#!/usr/bin/env python3
+import os
+import sys
+
+# Add parent dir to path so we can import GramAddict
+sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "..")))
+
+from GramAddict.core.qdrant_memory import UIMemoryDB
+
+
+def wipe_qdrant():
+    print("🧹 Initializing Qdrant connection...")
+    memory = UIMemoryDB()
+
+    if not memory.is_connected:
+        print("❌ Qdrant is not connected. Make sure the container is running.")
+        sys.exit(1)
+
+    print(f"⚠️ Wiping collection: {memory.COLLECTION_NAME}")
+
+    try:
+        memory.client.delete_collection(collection_name=memory.COLLECTION_NAME)
+        print("✅ Collection deleted.")
+
+        # Reinitialize to recreate the schema
+        memory._init_collection()
+        print("✅ Collection recreated with clean schema.")
+
+        print("🎉 Qdrant Memory is now completely clean and ready for fresh learning!")
+    except Exception as e:
+        print(f"❌ Failed to wipe Qdrant memory: {e}")
+        sys.exit(1)
+
+
+if __name__ == "__main__":
+    wipe_qdrant()