* [history-v1] put logs of back_fill_file_hash script in /var/log/overleaf
* [history-v1] do not leave tmp dir behind when using --report
* [history-v1] extend --report with number of files to check/missing
* [history-v1] move all the options into command line flags
Change default values:
- concurrency to 10
- concurrent batches to 1
- stream high water mark to 1MiB
* [web] find_malformed_filetrees: log progress on stderr
* [history-v1] fix percentage of projects that need back-filling
GitOrigin-RevId: ebd7889840f97b24eda43774ffe7524998fb634b
