feat: predix.py wrapper for dashboard support

Due to Typer CLI caching issues, created a wrapper script
that correctly supports dashboard options.

Usage:
  python predix.py fin_quant              # Normal
  python predix.py fin_quant -d           # Web Dashboard
  python predix.py fin_quant -c           # CLI Dashboard
  python predix.py fin_quant -d -c        # Both
  python predix.py fin_quant --help       # Help

Alternatively still available:
  rdagent fin_quant                       # Original CLI
  ./start_trading.sh                      # Interactive
  ./start_loop.sh                         # Endless loop

predix.py

@@ -0,0 +1,108 @@
+#!/usr/bin/env python3
+"""
+Predix CLI Wrapper - Startet fin_quant mit Dashboard-Unterstützung
+
+Verwendung:
+  python predix.py fin_quant                  # Normal
+  python predix.py fin_quant -d               # Web Dashboard
+  python predix.py fin_quant -c               # CLI Dashboard
+  python predix.py fin_quant -d -c            # Beide
+  python predix.py fin_quant --help           # Hilfe
+"""
+
+import sys
+import os
+from pathlib import Path
+
+# Parent-Directory zum Path hinzufügen
+sys.path.insert(0, str(Path(__file__).parent))
+
+# Environment laden
+from dotenv import load_dotenv
+load_dotenv(".env")
+
+import subprocess
+import threading
+import time
+from rich.console import Console
+
+console = Console()
+
+def start_web_dashboard(port=5000):
+    """Starte Web Dashboard."""
+    console.print(f"\n[bold green]🚀 Starting Web Dashboard on http://localhost:{port}...[/bold green]")
+    console.print(f"   [cyan]Open: http://localhost:{port}/dashboard.html[/cyan]\n")
+    subprocess.run(
+        ["python", "web/dashboard_api.py"],
+        cwd=str(Path(__file__).parent),
+        env={**os.environ, "FLASK_ENV": "development"}
+    )
+
+def start_cli_dashboard():
+    """Starte CLI Dashboard."""
+    from rdagent.log.ui.predix_dashboard import run_dashboard
+    run_dashboard(log_path="fin_quant.log", refresh_interval=3)
+
+def fin_quant(path=None, step_n=None, loop_n=None, all_duration=None, checkout=True):
+    """Starte fin_quant."""
+    from rdagent.app.qlib_rd_loop.quant import main
+    main(path=path, step_n=step_n, loop_n=loop_n, all_duration=all_duration, checkout=checkout)
+
+def main():
+    import argparse
+    
+    parser = argparse.ArgumentParser(
+        description="Predix EURUSD Trading",
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+        epilog="""
+Examples:
+  python predix.py fin_quant                      # Normal starten
+  python predix.py fin_quant -d                   # Web Dashboard
+  python predix.py fin_quant -c                   # CLI Dashboard
+  python predix.py fin_quant -d -c                # Beide Dashboards
+  python predix.py fin_quant --dashboard-port 5001  # Custom Port
+        """
+    )
+    
+    subparsers = parser.add_subparsers(dest='command', help='Commands')
+    
+    # fin_quant command
+    fq_parser = subparsers.add_parser('fin_quant', help='Start EURUSD quantitative trading loop')
+    fq_parser.add_argument('--path', type=str, default=None, help='Path')
+    fq_parser.add_argument('--step-n', type=int, default=None, help='Number of steps')
+    fq_parser.add_argument('--loop-n', type=int, default=None, help='Number of loops')
+    fq_parser.add_argument('--all-duration', type=str, default=None, help='Duration')
+    fq_parser.add_argument('--checkout', action='store_true', default=True, help='Checkout')
+    fq_parser.add_argument('--no-checkout', action='store_false', dest='checkout', help='No checkout')
+    fq_parser.add_argument('-d', '--with-dashboard', action='store_true', help='Start web dashboard')
+    fq_parser.add_argument('-c', '--cli-dashboard', action='store_true', help='Start CLI dashboard')
+    fq_parser.add_argument('--dashboard-port', type=int, default=5000, help='Dashboard port')
+    
+    args = parser.parse_args()
+    
+    if args.command == 'fin_quant':
+        # Start Web Dashboard wenn gewünscht
+        if args.with_dashboard:
+            dashboard_thread = threading.Thread(target=start_web_dashboard, args=(args.dashboard_port,), daemon=True)
+            dashboard_thread.start()
+            time.sleep(2)
+        
+        # Start CLI Dashboard wenn gewünscht
+        if args.cli_dashboard:
+            cli_thread = threading.Thread(target=start_cli_dashboard, daemon=True)
+            cli_thread.start()
+            time.sleep(1)
+        
+        # Fin Quant starten
+        fin_quant(
+            path=args.path,
+            step_n=args.step_n,
+            loop_n=args.loop_n,
+            all_duration=args.all_duration,
+            checkout=args.checkout
+        )
+    else:
+        parser.print_help()
+
+if __name__ == '__main__':
+    main()