[Frontend][Renderer] Refactor score API

[noooop]

Purpose

• Refactor score API Following [Renderer] Merge OpenAIServing._preprocess_* with Processor.process_inputs #23873 [RFC]: Unified Input Formatting and Processing via Renderer #22880
• Preparing to integrate jina-reranker-v3 [New Model]: jinaai/jina-reranker-v3 new reranking model #28557

Test Plan

Test Result

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• The purpose of the PR, such as "Fix some issue (link existing issues this PR will resolve)".
• The test plan, such as providing test command.
• The test results, such as pasting the results comparison before and after, or e2e results
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[mergify]

Documentation preview: https://vllm--28631.org.readthedocs.build/en/28631/

[mergify]

This pull request has merge conflicts that must be resolved before it can be
merged. Please rebase the PR, @noooop.

https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/working-with-forks/syncing-a-fork

[mergify]

This pull request has merge conflicts that must be resolved before it can be
merged. Please rebase the PR, @noooop.

https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/working-with-forks/syncing-a-fork

[noooop]

@DarkLight1337

I tried to extract the preprocessing of score, temporarily naming this as XXXPreProcessor, but we already have renderer, io_processor, and input_processor for preprocessing. May I ask which layer of abstraction should I align this preprocessing class with?

[DarkLight1337]

I am thinking of adding some sort of "hooks" to the IO processor that modify the prompt inputs.

[noooop]

here