docs: Translate all code comments to English

- Updated QWEN.md with English-only comment policy
- Translated all German comments in:
  * eurusd_regime.py
  * eurusd_llm.py
  * eurusd_reflection.py
  * eurusd_memory.py
  * eurusd_macro.py
  * eurusd_debate.py
  * predix_dashboard.py
- All comments, docstrings, and print statements now in English
- Ensures consistency with commit messages and documentation

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

rdagent/components/coder/factor_coder/eurusd_debate.py

@@ -740,10 +740,10 @@ if __name__ == "__main__":
             result = "LONG"
         else:
             result = "SHORT"
-        
+
         status = "✓" if result == scenario["expected"] else "✗"
-        print(f"  {status} Szenario {i}: Bull={scenario['bull']}%, Bear={scenario['bear']}%, Neutral={scenario['neutral']}%")
-        print(f"      → {result} (erwartet: {scenario['expected']})")
-    
-    print("\n✅ EURUSD Debate Team Implementierung ist funktionsfähig!")
-    print("\nHinweis: Vollständige LLM-Tests erfordern einen laufenden Server.")
+        print(f"  {status} Scenario {i}: Bull={scenario['bull']}%, Bear={scenario['bear']}%, Neutral={scenario['neutral']}%")
+        print(f"      → {result} (expected: {scenario['expected']})")
+
+    print("\n✅ EURUSD Debate Team implementation is functional!")
+    print("\nNote: Full LLM tests require a running server.")