feat: Enhance Jina client with additional embedding parameters

- Add `type_`, `truncate`, and `late_chunking` parameters to the
  `create_embeddings` function for finer control over embedding
  generation. This allows users to specify embedding type,
  truncation method, and whether to apply late chunking.
- Rename model parameter to `model` for clarity and consistency.
- Improve model enum naming for better readability and API consistency.
- Add unit tests for the `create_embeddings` function to ensure
  correct functionality and handle potential errors.

examples/clients/jina.vsh

@@ -6,7 +6,7 @@ mut jina_client := jina.get()!
 
 embeddings := jina_client.create_embeddings(
 	input: ['Hello', 'World']
-	model: .embeddings_v3
+	model: .jina_embeddings_v3
 	task:  'separation'
 ) or { panic('Error while creating embeddings: ${err}') }