feat: Add environment configuration files and update settings for production and development

app/api/v1/auth.py

@@ -207,14 +207,14 @@ async def logout(
         httponly=True,
         secure=settings.COOKIE_SECURE,
         samesite=settings.COOKIE_SAMESITE,
-        domain="localhost",  # Match the domain used when setting cookies
+        domain=settings.COOKIE_DOMAIN,  # Match the domain used when setting cookies
     )
     response.delete_cookie(
         key="refresh_token",
         httponly=True,
         secure=settings.COOKIE_SECURE,
         samesite=settings.COOKIE_SAMESITE,
-        domain="localhost",  # Match the domain used when setting cookies
+        domain=settings.COOKIE_DOMAIN,  # Match the domain used when setting cookies
     )
 
     return {"message": "Successfully logged out"}
@@ -303,7 +303,7 @@ async def oauth_callback(
             "created_at": time.time(),
         }
 
-        redirect_url = f"http://localhost:8001/auth/callback?code={temp_code}"
+        redirect_url = f"{settings.FRONTEND_URL}/auth/callback?code={temp_code}"
         logger.info("Redirecting to: %s", redirect_url)
 
         return RedirectResponse(