[NhanAZ]

Summary

Update current-release documentation and the compatibility monitor after v4.0.4 was published.

• Point the ecosystem inventory and strict-pin examples at the signed v4.0.4 release commit.
• Update the scheduled compatibility monitor to build with v4.0.4.
• Keep its repository metadata test synchronized.

Verification

• composer check passed: 543 tests, 12,926 assertions, 20 skipped; static analysis, documentation links, ecosystem data and PHAR validation passed.
• git diff --check passed.
• Commit is GPG-signed.

Release: https://github.com/AxolotlBucketLabs/DevTools/releases/tag/v4.0.4