Avoid unnecessary file rewrites and prune stale outputs. Add writeIfChanged to worker.js to skip writing identical content (new 'skipped' / '*-skip' result types), update task.js to count skipped/deleted files and report stats, and introduce syncDeleteOldFiles/getAllFilesInDir/deleteEmptyDirs to remove obsolete files from dbs_min before processing. Also restore MAX_PARALLEL to 16 and simplify worker resolution/exit handling. Finally, comment out the unconditional rd command in dbs_min_generate.cmd so the output folder is preserved.
After generating the database, the script now calls db_compress to further process the output. This automates compression as part of the generation workflow.
Adds a command to write the current date to dbs_min/timestamp.log after running the dbcompiler task, providing a record of when the generation script was executed.
