Added full suite of tests & added testing to CI/CD

backend/modules/calendar/api.py

@@ -1,5 +1,5 @@
 # modules/calendar/api.py
-from fastapi import APIRouter, Depends
+from fastapi import APIRouter, Depends, status
 from sqlalchemy.orm import Session
 from datetime import datetime
 from typing import List, Optional
@@ -12,7 +12,7 @@ from modules.calendar.service import create_calendar_event, get_calendar_event_b
 
 router = APIRouter(prefix="/calendar", tags=["calendar"])
 
-@router.post("/events", response_model=CalendarEventResponse)
+@router.post("/events", response_model=CalendarEventResponse, status_code=status.HTTP_201_CREATED)
 def create_event(
     event: CalendarEventCreate,
     user: User = Depends(get_current_user),