Improve code health

[hardfist]

unify error handling logic

replace anyhow with miette and this_error to avoid unnecessary conversion between anyhow and miette

[hardfist]

add comment documentation for key data structure

it's kind of hard to understand some data structure without explicit comment and tests, especially some naming is very unreadable
related to #10684

[hardfist]

remove panic for configuration validation

panic on wrong configuration cause bad error report experience
related to #10868