fix project file architecture

Author: Md-Emon-Hasan

.gitignore

@@ -1,9 +1,6 @@
 .env
-backend/database/
-backend/tests/test_database/
-backend/logs/
 frontend/dist/
 node_modules/
 __pycache__/
 *.pyc
-.pytest_cache/
+.pytest_cache/

backend/.coverage

@@ -0,0 +1 @@
+# MediGenius backend app package

backend/app/__init__.py

@@ -0,0 +1,24 @@
+"""
+MediGenius — agents/__init__.py
+Exports all agent node functions for easy import.
+"""
+
+from app.agents.executor import ExecutorAgent
+from app.agents.explanation import ExplanationAgent
+from app.agents.llm_agent import LLMAgent
+from app.agents.memory import MemoryAgent
+from app.agents.planner import PlannerAgent
+from app.agents.retriever import RetrieverAgent
+from app.agents.tavily import TavilyAgent
+from app.agents.wikipedia import WikipediaAgent
+
+__all__ = [
+    "MemoryAgent",
+    "PlannerAgent",
+    "RetrieverAgent",
+    "LLMAgent",
+    "WikipediaAgent",
+    "TavilyAgent",
+    "ExecutorAgent",
+    "ExplanationAgent",
+]