* refactor(extractBaseURL): add handling for all possible Cloudflare AI Gateway endpoints
* chore: added endpointoption todo for updating type and optimizing handling app-wide
* feat(azureUtils):
- `genAzureChatCompletion`: allow optional client pass to update azure property
- `constructAzureURL`: optionally replace placeholders for instance and deployment names of an azure baseURL
- add tests for module
* refactor(extractBaseURL): return entire input when cloudflare `azure-openai` suffix detected
- also add more tests for both construct and extract URL
* refactor(genAzureChatCompletion): only allow omitting instance name if baseURL is not set
* refactor(initializeClient): determine `reverseProxyUrl` based on endpoint (azure or openai)
* refactor: utitlize `constructAzureURL` when `AZURE_OPENAI_BASEURL` is set
* docs: update docs on `AZURE_OPENAI_BASEURL`
* fix(ci): update expected error message for `azureUtils` tests
