# What does this PR do?
add/enable the Databricks inference adapter
Databricks inference adapter was broken, closes#3486
- remove deprecated completion / chat_completion endpoints
- enable dynamic model listing w/o refresh, listing is not async
- use SecretStr instead of str for token
- backward incompatible change: for consistency with databricks docs,
env DATABRICKS_URL -> DATABRICKS_HOST and DATABRICKS_API_TOKEN ->
DATABRICKS_TOKEN
- databricks urls are custom per user/org, add special recorder handling
for databricks urls
- add integration test --setup databricks
- enable chat completions tests
- enable embeddings tests
- disable n > 1 tests
- disable embeddings base64 tests
- disable embeddings dimensions tests
note: reasoning models, e.g. gpt oss, fail because databricks has a
custom, incompatible response format
## Test Plan
ci and
```
./scripts/integration-tests.sh --stack-config server:ci-tests --setup databricks --subdirs inference --pattern openai
```
note: databricks needs to be manually added to the ci-tests distro for
replay testing