Adding code to call the rag_api simple reranker.

[kalaspuffar]

This code will call the simple reranker using local models in rag_api
danny-avila/rag_api#190

This is code to solve the issue I mentioned in:
danny-avila/LibreChat#9102

[Copilot]

Pull request overview

This pull request adds support for a new "simple" reranker type that integrates with the rag_api's local model-based reranking service. The implementation follows the existing pattern of reranker classes (Jina, Cohere, Infinity) but introduces JWT-based authentication for calling the Simple reranker API.

Key changes:

• Adds SimpleReranker class that uses JWT authentication to call a local reranking service
• Extends the RerankerType union to include 'simple' as a new option
• Adds dependencies for jsonwebtoken package and its type definitions

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 4 comments.

File	Description
src/tools/search/types.ts	Adds 'simple' to the RerankerType union and adds simpleRerankerInstanceUrl configuration parameter
src/tools/search/tool.ts	Threads the simpleRerankerInstanceUrl config parameter through to reranker creation
src/tools/search/rerankers.ts	Implements SimpleReranker class with JWT authentication, adds it to the factory function, and applies code formatting improvements
package.json	Adds jsonwebtoken runtime dependency and @types/jsonwebtoken dev dependency

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[Copilot]

Pull request overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated 3 comments.

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[kalaspuffar]

https://github.com/apps/copilot-pull-request-reviewer AI
[2 weeks ago](https://github.com/danny-avila/agents/pull/33#discussion_r2572100957)
The error message incorrectly states "Defaulting to InfinityReranker" but the code actually creates a JinaReranker instance. This message should be corrected to match the actual behavior:

Copilot suggested this change then forgot it.