new api service and logic implemented

docs/improvements/language_service/backend/language_service.py

@@ -0,0 +1,6 @@
+# Original content from ApiEvents/LanguageServiceApi/language_service.py
+from typing import Dict, List, Optional
+from fastapi import APIRouter, Header
+from pydantic import BaseModel
+
+# ... rest of the file content ...

docs/improvements/language_service/backend/zod_messages.py

@@ -0,0 +1,7 @@
+# Original content from ApiEvents/LanguageServiceApi/zod_messages.py
+from typing import Dict
+from fastapi import APIRouter, Header
+from pydantic import BaseModel
+from typing import Optional
+
+# ... rest of the file content ...