Implemented alembic migrations, added cursors closing task.

app/__init__.py

@@ -1,8 +1,10 @@
 from fastapi import APIRouter
 
 from app.connections import router as connections_router
-from app.operations import router as router
+from app.operations import router as operations_router
 from app.users import router as user_router
+from app.cursors import router as cursors_router
+from app.queries import router as queries_router
 
 api_router = APIRouter()
 api_router.include_router(router=user_router, prefix="/users", tags=["Users"])
@@ -10,5 +12,11 @@ api_router.include_router(
     router=connections_router, prefix="/connections", tags=["Connections"]
 )
 api_router.include_router(
-    router=router, prefix='/operations', tags=["Operations"]
+    router=cursors_router, prefix='/cursors', tags=['Cursors']
+)
+api_router.include_router(
+    router=queries_router, prefix='/queries', tags=['Queries']
+)
+api_router.include_router(
+    router=operations_router, prefix='/operations', tags=["Operations"]
 )