Document HTTP API format for attributes parameter and correct CONTRIBUTING.md error

[Divyansh200102]

Which problem is this PR solving?

• Addresses maintainer question in [Feature]: Support parameters for attributes and limit in api/v3/traces endpoint jaeger#7594 about documenting the HTTP API format for the attributes parameter

Description of the changes

• Added documentation to proto/api_v3/query_service.proto specifying that the HTTP API expects the attributes parameter as a URL-encoded JSON string map
• Follows the same documentation pattern used for other fields like start_time_min
• Regenerated swagger/api_v3/query_service.swagger.json to reflect the updated documentation
• Example format: {"http.status_code":"200","error":"true"}
• Also fixed the CONTRIBUTING.md by correcting the title for thrift commands.

How was this change tested?

• Ran make proto-all to regenerate all auto-generated files
• Verified swagger documentation was updated correctly
• Ran make test-ci - all tests passed

Checklist

• I have read https://github.com/jaegertracing/jaeger/blob/master/CONTRIBUTING_GUIDELINES.md
• I have signed all commits
• I have added unit tests for the new functionality (N/A - documentation only)
• I have run lint and test steps successfully
  • for jaeger-idl: make proto-all test-ci

[yurishkuro]

👍

[yurishkuro]

please make sure commits are signed

[Divyansh200102]

@yurishkuro can we merge this PR?

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (b55d868) to head (31720f1).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

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  Files           11        11           
  Lines          422       422           
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  Hits           422       422           

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