fix(tui): Add Keyword Cleaner to ensure reliable protocol matching

verify_response_v2.py

@@ -0,0 +1,56 @@
+import socket, time, sys
+
+def verify():
+    try:
+        s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+        s.settimeout(20)
+        s.connect(("localhost", 9105))
+        
+        # 1. Read everything until initial status
+        full_data = b""
+        while b":STATUS" not in full_data and b":status" not in full_data:
+            chunk = s.recv(4096)
+            if not chunk: break
+            full_data += chunk
+        
+        print(f"Initial stream: {full_data.decode()}")
+
+        # 2. Send "Hi"
+        payload = '(:TYPE :EVENT :PAYLOAD (:SENSOR :CHAT-MESSAGE :TEXT "Hi"))'
+        msg = f"{len(payload):06x}{payload}".encode()
+        print(f"Sending: {msg.decode()}")
+        s.sendall(msg)
+        
+        # 3. Read response
+        responses = []
+        start_time = time.time()
+        while time.time() - start_time < 15:
+            try:
+                chunk = s.recv(4096).decode()
+                if not chunk: break
+                print(f"Received chunk: {chunk}")
+                responses.append(chunk)
+                if ":CHAT" in chunk:
+                    print("Found reasoning response!")
+            except socket.timeout:
+                break
+        
+        s.close()
+        
+        # Assertions
+        all_text = "".join(responses)
+        if ":status" in all_text or ":status" in full_data.decode():
+            print("FAILURE: Found lowercase :status!")
+        else:
+            print("SUCCESS: Keywords are normalized to uppercase.")
+            
+        if ":CHAT" in all_text:
+            print("SUCCESS: Full response loop closed.")
+        else:
+            print("FAILURE: No chat response received.")
+
+    except Exception as e:
+        print(f"Error: {e}")
+        sys.exit(1)
+
+verify()