🎨 Palette: Add dynamic progress bar for quiet mode

.Jules/palette.md

@@ -5,3 +5,7 @@
 ## 2025-02-28 - Structured CLI Reports
 **Learning:** Dense numerical data in CLI output is hard to parse. Using ASCII box-drawing characters and alignment to create a "dashboard" or "invoice" style summary significantly improves readability and perceived quality.
 **Action:** When summarizing simulation or batch job results, always format the final report as a structured table or box rather than a list of print statements.
+
+## 2025-03-12 - Silent Mode Visibility
+**Learning:** For long-running CLI processes that suppress verbose logging (e.g., `--quiet`), implementing a dynamic progress bar using `\r` and `flush=True` (conditional on `sys.stdout.isatty()`) provides critical system status visibility without polluting standard output logs.
+**Action:** Always include a visual progress indicator for silent, long-running CLI tasks when run interactively to prevent users from thinking the process has stalled.

bitcoin_trading_simulation.py

@@ -84,7 +84,11 @@ def simulate_trading(signals, initial_cash=10000, quiet=False):
 
     if not quiet:
         print(f"\n{Colors.HEADER}{Colors.BOLD}------ Daily Trading Ledger ------{Colors.ENDC}")
-    for i, row in signals.iterrows():
+
+    total_days = len(signals)
+    show_progress = quiet and sys.stdout.isatty()
+
+    for idx, (i, row) in enumerate(signals.iterrows()):
         if i > 0:
             portfolio.loc[i, 'cash'] = portfolio.loc[i-1, 'cash']
             portfolio.loc[i, 'btc'] = portfolio.loc[i-1, 'btc']
@@ -94,21 +98,32 @@ def simulate_trading(signals, initial_cash=10000, quiet=False):
             btc_to_buy = portfolio.loc[i, 'cash'] / row['price']
             portfolio.loc[i, 'btc'] += btc_to_buy
             portfolio.loc[i, 'cash'] -= btc_to_buy * row['price']
-            print(f"{Colors.GREEN}🟢 Day {i}: Buy {btc_to_buy:.4f} BTC at ${row['price']:.2f}{Colors.ENDC}")
+            if not quiet:
+                print(f"{Colors.GREEN}🟢 Day {i}: Buy {btc_to_buy:.4f} BTC at ${row['price']:.2f}{Colors.ENDC}")
 
         # Sell signal
         elif row['positions'] == -2.0:
             if portfolio.loc[i, 'btc'] > 0:
                 cash_received = portfolio.loc[i, 'btc'] * row['price']
                 portfolio.loc[i, 'cash'] += cash_received
-                print(f"{Colors.FAIL}🔴 Day {i}: Sell {portfolio.loc[i, 'btc']:.4f} BTC at ${row['price']:.2f}{Colors.ENDC}")
+                if not quiet:
+                    print(f"{Colors.FAIL}🔴 Day {i}: Sell {portfolio.loc[i, 'btc']:.4f} BTC at ${row['price']:.2f}{Colors.ENDC}")
                 portfolio.loc[i, 'btc'] = 0
 
         portfolio.loc[i, 'total_value'] = portfolio.loc[i, 'cash'] + portfolio.loc[i, 'btc'] * row['price']
 
         if not quiet:
             print(f"Day {i}: Portfolio Value: ${portfolio.loc[i, 'total_value']:.2f}, "
                   f"Cash: ${portfolio.loc[i, 'cash']:.2f}, BTC: {portfolio.loc[i, 'btc']:.4f}")
+        elif show_progress:
+            progress = (idx + 1) / total_days
+            bar_length = 30
+            filled_length = int(bar_length * progress)
+            bar = '█' * filled_length + '-' * (bar_length - filled_length)
+            print(f"\r{Colors.CYAN}Simulating: |{bar}| {progress:.1%} Complete{Colors.ENDC}", end="", flush=True)
+
+    if show_progress:
+        print() # Clear line after progress is done
 
     return portfolio
 

main.tf

@@ -0,0 +1 @@
+terraform {}