feat: add emulator script to create custom token

get_emulator_token.py

@@ -0,0 +1,21 @@
+import os
+from typing import cast
+from firebase_admin import auth
+import httpx
+from cefies.internal.firestore import app
+
+API_KEY = os.getenv("API_KEY", "")
+
+try:
+    user = auth.get_user_by_email(email="[email protected]")
+except:
+    user: auth.UserRecord = auth.create_user(email="[email protected]", password="sample")
+
+custom_token = auth.create_custom_token(user.uid).decode()
+response = httpx.post(
+    "http://localhost:9099/www.googleapis.com/identitytoolkit/v3/relyingparty/verifyCustomToken?key=" + API_KEY,
+    json={"token": custom_token, "returnSecureToken": True},
+)
+
+
+print(response.json())