changing field frm pdf to raw data

mylangv2.py

@@ -28,6 +28,26 @@ except ImportError as e:
         "Install faiss-cpu/faiss-gpu or downgrade NumPy to <2.0 to enable FAISS." % e
     )
 
+# Load env vars
+dotenv_path = os.getenv('DOTENV_PATH')
+if dotenv_path:
+    load_dotenv(dotenv_path)
+else:
+    load_dotenv()
+
+# Validate env vars
+def check_env():
+    required = [
+    "AZURE_OPENAI_API_KEY",
+    "AZURE_OPENAI_ENDPOINT",
+    "AZURE_OPENAI_EMBEDDING_DEPLOYMENT",
+    "AZURE_OPENAI_CHAT_DEPLOYMENT",
+    "AZURE_OPENAI_API_VERSION"
+]
+    missing = [v for v in required if not os.getenv(v)]
+    if missing:
+        raise EnvironmentError(f"Missing required environment variables: {', '.join(missing)}")
+
 class DocumentProcessor:
     def __init__(
         self,