Implement backend API for landmarks, trip optimization, and toilet locations

- Added landmarks_router.py to handle landmark retrieval based on user preferences and location.
- Implemented optimization_router.py for trip optimization, including handling preferences and landmarks.
- Created toilets_router.py to fetch toilet locations within a specified radius from a given location.
- Enhanced error handling and logging across all new endpoints.
- Generated a comprehensive report.html for test results and environment details.

backend/src/toilets/toilets_router.py

@@ -1,16 +1,20 @@
-"""Defines the endpoint for fetching toilet locations."""
+"""API entry point for fetching toilet locations."""
+
 from fastapi import HTTPException, APIRouter, Query
 
-from ..structs.toilets import Toilets
 from .toilets_manager import ToiletsManager
+from ..structs.toilets import Toilets
 
 
-# Define the API router
+# Initialize the API router
 router = APIRouter()
 
 
-@router.post("/toilets/new")
-def get_toilets(location: tuple[float, float] = Query(...), radius: int = 500) -> list[Toilets] :
+@router.post("/get/toilets")
+def get_toilets(
+        location: tuple[float, float] = Query(...),
+        radius: int = 500
+    ) -> list[Toilets] :
     """
     Endpoint to find toilets within a specified radius from a given location.