dets: TypeScript Declaration Bundler

dets is a utility for bundling TypeScript declaration files (`.d.ts`) into a single output file. Its primary use case is to create isolated declaration files that do not depend on external declaration packages or to selectively export a public API. Currently at version `0.17.0`, the project appears to have a regular, albeit minor, release cadence with frequent bug fixes and dependency updates, indicating active maintenance. Key differentiators include its ability to ignore, remove, or preserve specific properties and inheritance clauses within declarations using special JSDoc-like comments (`@ignore`, `@dets_preserve`, `@dets_removeprop`, `@dets_removeclause`), offering fine-grained control over the generated declaration file content. It supports both CLI and programmatic usage in Node.js environments.