feat(stars): Achieve sampling mode to obtain star historical data from a large database repository

[lik0914]

• Add GitHub Max sample pages configuration option
• Implement Link header parsing to get the actual maximum number of pages
• Add a sampling algorithm to evenly distribute the page fetching strategy
• Support pagination sampling data fetching for large repositories
• Optimize concurrent request limits and error handling mechanisms
• Change the Y-axis data of the chart to use actual counts instead of index values

[caarlos0]

thanks for the PR, but please translate things to english.

thanks.

[xiongjiamu]

lgtm～～～

[codecov]

Codecov Report

❌ Patch coverage is 29.32331% with 94 lines in your changes missing coverage. Please review.
✅ Project coverage is 15.50%. Comparing base (31d8f93) to head (ee06663).
⚠️ Report is 26 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/github/stars.go	28.00%	87 Missing and 3 partials ⚠️
controller/chart.go	0.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #248      +/-   ##
==========================================
- Coverage   18.58%   15.50%   -3.09%     
==========================================
  Files          29       29              
  Lines        1162     1090      -72     
==========================================
- Hits          216      169      -47     
+ Misses        920      898      -22     
+ Partials       26       23       -3     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[caarlos0]

thanks!