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🎨 Palette: CLI Input Validation and Progress Bar#67

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EiJackGH wants to merge 1 commit intomainfrom
palette-cli-ux-improvements-1681118148208293051
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🎨 Palette: CLI Input Validation and Progress Bar#67
EiJackGH wants to merge 1 commit intomainfrom
palette-cli-ux-improvements-1681118148208293051

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@EiJackGH
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This PR enhances the UX of the Bitcoin Trading Simulation CLI by:

  1. Input Validation: Prevents invalid simulation parameters (e.g., negative days, zero cash) with friendly, colored error messages.
  2. Progress Feedback: Adds a simple, dependency-free progress bar that displays during quiet/long simulations when running in an interactive terminal. This addresses the "frozen" feeling during long runs.
  3. Log Hygiene: Ensures the progress bar is only shown in TTY environments, keeping logs clean for CI/CD or file redirection.

PR created automatically by Jules for task 1681118148208293051 started by @EiJackGH

- Add `validate_inputs` to `bitcoin_trading_simulation.py` to ensure CLI arguments are positive/valid.
- Add text-based progress bar for `--quiet` mode simulations, guarded by `sys.stdout.isatty()` to prevent log pollution.
- Improve error messages with ANSI colors for better visibility.
- Fixes issue where negative inputs caused confusing "Day 0" output or crashes.

Co-authored-by: EiJackGH <172181576+EiJackGH@users.noreply.github.com>
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👋 Jules, reporting for duty! I'm here to lend a hand with this pull request.

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