chore: benchmark-sync

[beginwebdev2002]

Synchronizes constraints from NestJS, Angular, TypeScript, and MongoDB readmes into benchmark suites and AST validation schemas.

Introduces a Vibe-Check Runner using `ts-morph` to simulate abstract syntax tree (AST) validation of AI-generated responses against defined constraints.
Includes test stability fixes (duplicate crypto imports).

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PR created automatically by Jules for task 17217929584493813384 started by @beginwebdev2002

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