🎨 Palette: Enhance CLI Report with ASCII Dashboard & Stats

[EiJackGH]

💡 What:

• Removed duplicate Colors class definition in bitcoin_trading_simulation.py.
• Fixed a bug where "Daily Trading Ledger" was printed twice.
• Enhanced the "Final Portfolio Performance" report with a structured ASCII box layout.
• Added new statistics to the report: ROI (%), Total Trades (Buys/Sells), and comparison vs Buy & Hold.

🎯 Why:

• The original output was messy (duplicate headers) and hard to read (plain text list).
• Users need key metrics like ROI and trade activity at a glance.
• The new layout reduces cognitive load and makes the tool feel more professional.

📸 Before:

------ Daily Trading Ledger ------

------ Daily Trading Ledger ------
...
------ Final Portfolio Performance ------
Initial Cash: $10000.00
Final Portfolio Value: $9896.74
📉 Profit/Loss: $-103.26
Buy and Hold Strategy Value: $10437.41
-----------------------------------------

📸 After:

╔════════════════════════════════════════════╗
║       Final Portfolio Performance          ║
╠════════════════════════════════════════════╣
║ Initial Cash:                   $10,000.00 ║
║ Final Portfolio Value:           $9,775.97 ║
║ Profit/Loss:                      -$224.03 ║
║ ROI:                                -2.24% ║
╠════════════════════════════════════════════╣
║ Total Trades:                            2 ║
║   - Buys:                                1 ║
║   - Sells:                               1 ║
╠════════════════════════════════════════════╣
║ Buy & Hold Value:               $10,541.57 ║
║ vs Buy & Hold:                    -$765.59 ║
╚════════════════════════════════════════════╝

♿ Accessibility:

• Maintained high contrast colors (Green/Red) but ensured layout is readable without them.
• Used clear labels and alignment.
• Emojis (hardcoded) provide visual cues even in no-color mode.

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PR created automatically by Jules for task 10784789726884231400 started by @EiJackGH

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