* test: move 76 live top-level tests to offline unit and integration coverage
* test: keep the mock-param opt-in guard valid once the top-level senders are gone
* test: address review on offline replacements
* docs(test): drop the deleted harness test file from the harness check command
* test: make the key rebind, team member delete and routes integration tests exercise the legacy paths
* test: make fallback, rpm and spend integration contracts deterministic and clean up their rows, assert the rpm limit in usage-based routing
* test: expect the no-deployments error at the rpm limit and cover the strategy check without pre-call checks
* test: hand member cleanups to the scenario instead of growing a budget list, flatten callback kinds
* test: scope the admin health check to the test's own deployment
---------
Co-authored-by: yuneng <yuneng@berri.ai>
