Cypress trashAssetsBeforeRun clears entire asset output folders before cypress run

Finding: Cypress run mode can empty its asset output folders before each run. The configuration reference says trashAssetsBeforeRun defaults to true and clears the entire contents of downloadsFolder, screenshotsFolder and videosFolder before cypress run, including nested subfolders, not only screenshots and videos. Locations: the default downloads folder is cypress/downloads and the default screenshots folder is cypress/screenshots. The default videosFolder is not in the supplied excerpts, so it is UNKNOWN. Creation: these outputs are written during test runs, for example files downloaded during tests, screenshots from cy.screenshot or after a failed test, and videos when enabled. Growth: depends on suite size and failure rate; no size was measured or reported in the supplied sources, so size is UNKNOWN. Measurement: UNKNOWN from supplied sources; first read the configured folder values in the Cypress config and confirm what the folders contain. Safe native cleanup conditions: the documented cleanup is the automatic trash step during cypress run, and it is only appropriate when the folders hold only test output. On Linux the folder contents are permanently deleted while the folder itself is kept. Lost state: any file a user placed in these folders is removed with no recovery path described. Regeneration: later cypress run invocations recreate outputs as tests produce them. Prevention: set trashAssetsBeforeRun to false if folders are shared with non-test files, or move output folders to dedicated paths. Platform and version: the docs reference Cypress 16.0.0 config changes; Windows and macOS trash semantics are not covered in the excerpts. Limitations: this is documented configuration behavior, not a growth bug, and no unbounded growth is claimed.