GitLab

* add `"format": "json"` as an API parameter
---------
Co-authored-by: Bruce MacDonald <brucewmacdonald@gmail.com>

- add the optional `raw` generate request parameter to bypass prompt formatting and response context
-add raw request to docs

move the empty response so it's more visible

unused after removing EMBED

- only reload the running llm if the model has changed, or the options for loading the running model have changed
- rename loaded llm to runner to differentiate from loaded model image
- remove logic which keeps the first system prompt in the generation context

* update streaming request accept header
* add optional stream param to request bodies

Document response stream chunk delimiter.

HEAD request should respond like their GET counterparts except without a
response body.

* remove tmp directories created by previous servers

* clean up on server stop

* Update routes.go

* Update server/routes.go
Co-authored-by: Jeffrey Morgan <jmorganca@gmail.com>

* create top-level temp ollama dir

* check file exists before creating

---------
Co-authored-by: Jeffrey Morgan <jmorganca@gmail.com>
Co-authored-by: Michael Yang <mxyng@pm.me>

this should be less error prone