find url and retri for multiple sps by client address

[CodeWarriorr]

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[Copilot]

Pull Request Overview

This PR adds support for fetching URLs and retrievability metrics by client address, enhances the job model to record multiple provider results, and refactors job handling to emit and store those results.

• Introduce a new /url/client/:client route and handler for client-based lookups.
• Extend the Job struct and repository to accumulate multiple ProviderResult entries.
• Refactor job_handler to return, log, and persist multiple success/error outcomes.

Reviewed Changes

Copilot reviewed 12 out of 15 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/routes.rs	Added a route for handle_find_client
src/repository/job_repo.rs	Changed Job to hold results: Vec<ProviderResult> and updated methods (add_success_result, add_error_result, set_status)
src/lotus_rpc.rs	Inserted a debug log for peer ID requests
src/deal_service.rs	Introduced get_distinct_providers_by_client
src/deal_repo.rs	Implemented get_distinct_providers_by_client SQL query
src/background/job_handler.rs	Refactored to use JobHandlerResult enum with detailed result structs and handle multiple results
src/api/responses.rs	Added new ErrorCode variants (NoProviderOrClient, NoProvidersFound)
src/api/get_job.rs	Populates working_url and retrievability from first results element for FE compatibility
src/api/find_client.rs	New handler handle_find_client for client-based URL retrieval
src/api/create_job.rs	Made provider optional, improved validation, and updated docs
src/api/api_doc.rs	Updated API documentation to include the new client endpoint

Files not reviewed (3)

• .sqlx/query-072675ef78b55b473101ad5e556529177403872c30a9f1f95829fcfe03a3cc68.json: Language not supported
• .sqlx/query-7ef60661a9826e8e3e00158e7d018c465227cff3b07498d8793f310cf78135ef.json: Language not supported
• .sqlx/query-e130ef133dc7185f8dc726e7a08b14a1d39191f9c64ec351eeec3683a808228b.json: Language not supported