Update urls.py for dynamic Codespace API URLs and api_root

Author: AlgorithmicThoughts

octofit-tracker/backend/octofit_tracker/urls.py

@@ -0,0 +1,35 @@
+"""octofit_tracker URL Configuration
+
+The `urlpatterns` list routes URLs to views. For more information please see:
+    https://docs.djangoproject.com/en/4.1/topics/http/urls/
+Examples:
+Function views
+    1. Add an import:  from my_app import views
+    2. Add a URL to urlpatterns:  path('', views.home, name='home')
+Class-based views
+    1. Add an import:  from other_app.views import Home
+    2. Add a URL to urlpatterns:  path('', Home.as_view(), name='home')
+Including another URLconf
+    1. Import the include() function: from django.urls import include, path
+    2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
+"""
+import os
+from django.contrib import admin
+from django.urls import path
+from django.http import JsonResponse
+
+def api_root(request):
+    codespace_name = os.environ.get('CODESPACE_NAME', '')
+    base_url = f"https://{codespace_name}-8000.app.github.dev" if codespace_name else "http://localhost:8000"
+    return JsonResponse({
+        "users": f"{base_url}/api/users/",
+        "teams": f"{base_url}/api/teams/",
+        "activities": f"{base_url}/api/activities/",
+        "leaderboard": f"{base_url}/api/leaderboard/",
+        "workouts": f"{base_url}/api/workouts/",
+    })
+
+urlpatterns = [
+    path('admin/', admin.site.urls),
+    path('', api_root, name='api_root'),
+]