Update spaCy model loading to use 'en_core_web_sm' instead of 'en_core_web_trf'

src/utils/_model_manager.py

@@ -42,7 +42,7 @@ class ModelManager:
         logger.info("✅ Doctr model loaded successfully!")
 
         # Load spaCy model
-        self._spacy_model = spacy.load(os.getenv("SPACY_MODEL_NAME", "en_core_web_trf"))
+        self._spacy_model = spacy.load(os.getenv("SPACY_MODEL_NAME", "en_core_web_sm"))
         logger.info(f"✅ spaCy model loaded successfully!")
         self._models_loaded = True
         logger.info("🎉 All models loaded successfully!")