🎨 Palette: Add dynamic progress bar and quiet logging

[EiJackGH]

💡 What: Added a dynamic, text-based progress bar (█) that updates in-place during the trading simulation when --quiet mode is active and the session is interactive (sys.stdout.isatty()). Also suppressed the individual Buy/Sell log lines that were previously leaking into the console output even when --quiet was specified.
🎯 Why: To improve the developer experience (UX). For long-running simulations (e.g., thousands of days), users previously had no visual feedback if --quiet mode was active until the final report printed. This change provides continuous status visibility without polluting standard output logs or file redirections.
♿ Accessibility/UX: Respects standard output redirection by selectively disabling the progress bar if isatty() is False. Correctly clears its own line to prevent visual artifacts before printing the final summary report. Used carriage returns (\r) for in-place updates.

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PR created automatically by Jules for task 2159220681959677889 started by @EiJackGH

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