Draft a bash script for Linux that runs inside the cTrader CLI Docker container on a schedule. Steps: (1) pull the last 200 h1 candles for each symbol listed in symbols.txt with `ctrader-cli candles`; (2) run filters.py, which computes spread and volatility filters and writes passed.txt; (3) for each symbol in passed.txt, run `ctrader-cli backtest` for every .cbotset in hypotheses/ with --report-json; (4) run summary.py, which builds a plain-text summary and sends it to <channel>.

Stop on the first error. Allowed CLI commands: candles and backtest only. Never call run, and never call any order or position command. Use placeholders for credentials and read the password from a file with --pwd-file; never put it in the script.
