Investigate using a single yml file for managing regex

Currently versions are broken out into dedicated yml files. This can lead to duplicates between versions. Explore using a single file and making iterating on rules simpler without the need to duplicate information.

Start by inspecting the repository's current version-specific YAML files and how TypeScript loads and iterates over their regex rules. Compare duplicated entries across versions and determine the configuration shape needed for a single file. Done means the project has an agreed approach that avoids duplication and simplifies rule iteration, with the affected loading and validation behavior identified.

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