cancellation schedule

some cleanup and updates to test env files

refactoring and review comments

checking attendacne

fixing attendance

hard delete fix for room and other small UI nuances.

qr code based attendance

login fixes and alignments

login

major refactor: split code into multiple files and add OTP-based authentication

feat: DailyChunkedHandler for server logs (1MB cap, configurable retention), per-run ISO timestamp test logs

feat: write test output to logs/ directory with timestamp

fix: batch date coercion in sync; test script port 7880 and correct HTTP methods