feat: add backupConfigPath method

[ONG-YA]

Description (what this PR does / why we need it):

Which issue(s) this PR fixes (resolves / be part of):

fixes #

Other special notes for reviewer:

[ONG-YA]

#1511

[kagaya85]

Hi @ONG-YA, Thanks for your contribution, is this PR ready for review?

[codecov-commenter]

Codecov Report

Merging #1511 (cc43605) into main (953deaa) will decrease coverage by 0.06%.
The diff coverage is n/a.

❗ Current head cc43605 differs from pull request most recent head 49aa133. Consider uploading reports for the commit 49aa133 to get more accurate results

@@            Coverage Diff             @@
##             main    #1511      +/-   ##
==========================================
- Coverage   68.63%   68.56%   -0.07%     
==========================================
  Files          67       67              
  Lines        3089     3089              
==========================================
- Hits         2120     2118       -2     
- Misses        789      791       +2     
  Partials      180      180              

Impacted Files	Coverage Δ
middleware/auth/jwt/jwt.go	85.71% <ø> (ø)
internal/context/context.go	97.01% <0.00%> (-2.99%)	⬇️

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[shenqidebaozi]

LGTM