* fix(route_checks.py): ensure disable llm api endpoints is correctly set
* fix(route_checks.py): raise httpexception
raise expected exceptions
* fix(router.py): handle team only wildcard models
fixes issue where team only wildcard models were not considered during auth checks
* fix(router.py): handle team only wildcard models
fixes issue where team only wildcard models were not considered during auth checks
* fix(enterprise/litellm_enterprise/proxy/auth/user_api_key_auth.py): bubble up exception if type is ProxyException
* docs(custom_auth.md): doc on bubbling up custom exceptions
* feat(route_checks.py): allow admin to disable proxy management endpoints on instance
useful for preventing multiple instances from doing admin actions
* docs(scaling_multiple_instances.md): add architecture doc on scaling multiple litellm instances
provide guidance on scaling proxy
* docs(scaling_multiple_instances.md): add doc on scaling across multiple regions for litellm
* fix(route_checks.py): allow disabling llm api endpoints on an instance
allows pure admin instance to exist
* refactor(enterprise/route_checks.py): refactor env var checks
* refactor: finish refactoring
* docs(control_plane_and_data_plane.md): refactor docs
* test: update tests
* feat(user_api_key_auth.py): (enterprise) allow user to enable custom auth + litellm api key auth
makes it easy to migrate to proxy
* fix(proxy/_types.py): allow setting 'spend' for new customer
* fix(customer_endpoints.py): fix updating max budget on `/customer/update`
Fixes https://github.com/BerriAI/litellm/issues/6920
* test(test_customer_endpoints.py): add unit tests for customer update endpoint
* fix: fix linting error
* fix(custom_auth_auto.py): fix ruff check
* fix(customer_endpoints.py): fix documentation
