[ENH] return configuration in server response

[jairad26]

Description of changes

• Improvements & Bug fixes
  • Removed #[serde(skip_serializing)] attribute from config field in Collection struct, allowing it to be serialized
  • Added ToSchema derive macro to VectorIndexConfiguration enum, enabling OpenAPI schema generation
  • Added ToSchema derive macro to InternalCollectionConfiguration struct for OpenAPI schema generation
  • Added ToSchema derive macro to InternalSpannConfiguration struct for OpenAPI schema generation
  • Add ability to deserialize into the correct CollectionConfiguration type, add backwards compatiblity for new clients talking to old servers

Test plan

• Tests pass locally with pytest for python, yarn test for js, cargo test for rust

Documentation Changes

No documentation changes required as these changes are related to internal serialization and schema generation capabilities.

[github-actions]

Please tag your PR title with one of: [ENH | BUG | DOC | TST | BLD | PERF | TYP | CLN | CHORE]. See https://docs.trychroma.com/contributing#contributing-code-and-ideas

[github-actions]

Reviewer Checklist

Please leverage this checklist to ensure your code review is thorough before approving

Testing, Bugs, Errors, Logs, Documentation

• Can you think of any use case in which the code does not behave as intended? Have they been tested?
• Can you think of any inputs or external events that could break the code? Is user input validated and safe? Have they been tested?
• If appropriate, are there adequate property based tests?
• If appropriate, are there adequate unit tests?
• Should any logging, debugging, tracing information be added or removed?
• Are error messages user-friendly?
• Have all documentation changes needed been made?
• Have all non-obvious changes been commented?

System Compatibility

• Are there any potential impacts on other parts of the system or backward compatibility?
• Does this change intersect with any items on our roadmap, and if so, is there a plan for fitting them together?

Quality

• Is this code of a unexpectedly high quality (Readability, Modularity, Intuitiveness)

[jairad26]

• [ENH] Add collection config to js client #4116 : 2 dependent PRs (#4118 , #4300 )
• [ENH] return configuration in server response #4087 👈 (View in Graphite)
• [ENH] grpc changes for update collection config #4083
• [BLD] Add test for JS client to check for drift in generated openapi spec #4298
• main

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