Merge remote-tracking branch 'origin/statistics'

# Conflicts:
#	main.py
#	routers/__init__.py
#	schemas/deal.py

routers/__init__.py

@@ -14,3 +14,4 @@ from .time_tracking import time_tracking_router
 from .billing import billing_router
 from .task import task_router
 from .work_shifts import work_shifts_router
+from .statistics import statistics_router