#3145: More concise detecting of rust inserts

[levBagryansky]

Closes #3145

---

PR-Codex overview

This PR improves error handling and refactors Rust code insertion.

Detailed summary

• Updated error message in BinarizeParseTest
• Improved error handling in EOrust
• Restructured Rust code insertion logic in XSL
• Added detailed YAML test for Rust code detection and insertion

✨ Ask PR-Codex anything about this PR by commenting with /codex {your question}

[levBagryansky]

@maxonfjvipon please review

[maxonfjvipon]

@levBagryansky let's add test pack for xsl stylesheet that would check if dependencies were added (something similar to https://github.com/objectionary/eo/blob/master/eo-maven-plugin/src/test/resources/org/eolang/maven/binarize/add_rust/add-dependencies.yaml). It will allow us to catch the problem before eo-runtime compilation

[maxonfjvipon]

@levBagryansky looks good, thanks

[yegor256]

@levBagryansky now, all .yaml files must have a header with a license. Please, add one, to make it possible to merge.

[maxonfjvipon]

@levBagryansky or restart CI to see what's missing

[levBagryansky]

@yegor256 please check

[yegor256]

@rultor merge

[rultor]

@rultor merge

@yegor256 OK, I'll try to merge now. You can check the progress of the merge here

[rultor]

@rultor merge

@yegor256 Done! FYI, the full log is here (took me 22min)