handle cache data and add force reload button on swagger

[Many0nne]

No description provided.

[Copilot]

Pull request overview

This PR introduces an always-on mock data caching layer (MockDataStore) so that generated mock data remains stable across requests (instead of being regenerated each time), and adds a "Rebuild Data" button to the Swagger UI that allows users to clear the cached mock data and regenerate it on the next request.

Changes:

• Added MockDataStore class in cache.ts that caches both single-object mocks and array pools, independent of the config.cache setting.
• Integrated mockDataStore into the route handler (router.ts) to serve cached mock data on subsequent requests and regenerate only on first access.
• Added a /mock-reset POST endpoint and a custom Swagger UI toolbar with a "Rebuild Data" button that triggers cache clearing.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 3 comments.

File	Description
src/core/cache.ts	New MockDataStore class with singles/pools Maps, get/set/clear/getStats methods, and a global mockDataStore singleton.
src/core/router.ts	Updated dynamic route handler to check mockDataStore before generating new mock data for both array and single-object endpoints.
src/server.ts	Added /swagger-rebuild.js endpoint serving custom JS for the toolbar button, /mock-reset POST endpoint, and wired custom JS into Swagger UI setup.
src/core/swagger.ts	Added OpenAPI spec entry for the /mock-reset endpoint.

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