feat: Increase database connection pool for concurrent gateway traffic

Author: Pranavseelam06

app/database.py

@@ -8,10 +8,17 @@
 
 load_dotenv()
 
+
 DATABASE_URL = os.getenv("DATABASE_URL")
 if not DATABASE_URL:
     raise RuntimeError("DATABASE_URL is not set in environment variables")
-engine = create_engine(DATABASE_URL)
+engine = create_engine(
+    DATABASE_URL,
+    pool_size=50,
+    max_overflow=50,
+    pool_timeout=10,
+    pool_pre_ping=True,
+)
 
 SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
 def get_session():