Rename app directory to core_logic to avoid module shadowing and fix ASGI error

app.py

@@ -11,10 +11,10 @@ from fastapi.middleware.cors import CORSMiddleware
 import time
 
 # Import services
-from app.core.config import settings
-from app.services.document_processor import DocumentProcessor
-from app.services.vector_store import vector_store
-from app.services.llm_service import llm_service
+from core_logic.core.config import settings
+from core_logic.services.document_processor import DocumentProcessor
+from core_logic.services.vector_store import vector_store
+from core_logic.services.llm_service import llm_service
 
 # --- FASTAPI APP DEFINITION (Exposed at top level) ---
 api_app = FastAPI(title="RAG API")

{app → core_logic}/services/document_processor.py

@@ -1,7 +1,7 @@
 import fitz  # PyMuPDF
 import os
 from typing import List
-from app.core.config import settings
+from core_logic.core.config import settings
 
 class DocumentProcessor:
     @staticmethod

{app → core_logic}/services/llm_service.py

@@ -1,5 +1,5 @@
 import google.generativeai as genai
-from app.core.config import settings
+from core_logic.core.config import settings
 from typing import List
 
 class LLMService:

{app → core_logic}/services/vector_store.py

@@ -3,7 +3,7 @@ import numpy as np
 import json
 import os
 from sentence_transformers import SentenceTransformer
-from app.core.config import settings
+from core_logic.core.config import settings
 from typing import List, Dict
 
 class VectorStore: