Renovation: `package.html` to `package-info.java`

[wadoon]

Intended Change

Renovation: Automatic translation of package.html to package-info.java.

• Recommended since Java 1.5.
• Allows setting annotation for complete package (e.g., @org.jspecify.NullMarked)

Type of pull request

• X Refactoring (behaviour should not change or only minimally change)

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (5dc944b) 37.97% compared to head (1221667) 37.97%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #3381 +/- ## ========================================= Coverage 37.97% 37.97% Complexity 17035 17035 ========================================= Files 2060 2060 Lines 126146 126146 Branches 21292 21292 ========================================= Hits 47910 47910 Misses 72351 72351 Partials 5885 5885 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.