fix thai "เเ"

app.py

@@ -9,6 +9,7 @@ import os
 from pythainlp.tokenize import word_tokenize
 from pyairtable import Table
 from pyairtable import Api
+import unicodedata
 
 
 qdrant_client = QdrantClient(
@@ -48,6 +49,11 @@ model_config = {
 # Global memory to hold feedback state
 latest_query_result = {"query": "", "result": "", "model": "", "raw_query": "", "time": ""}
 
+def fix_common_thai_typos(text: str) -> str:
+    text = unicodedata.normalize("NFC", text)  # normalize ตัวอักษรซ้อน
+    text = text.replace("เเ", "แ").replace("เแ", "แ")  # แก้เฉพาะเอกลักษณ์ผิด
+    return text
+
 # 🌟 Main search function
 def search_product(query, model_name):
     start_time = time.time()