fix: improve AI coach chat context, 128k window, and output limits

Co-authored-by: Cursor <cursoragent@cursor.com>

manual_trading_hub/hub_ai/config.py

@@ -7,7 +7,10 @@ HUB_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 
 SUMMARY_TEMPERATURE = 0.15
 CHAT_TEMPERATURE = 0.5
-CHAT_MAX_HISTORY_TURNS = 20
+CHAT_MAX_HISTORY_TURNS = 40
+CHAT_MAX_OUTPUT_TOKENS = 2048
+CHAT_CONTEXT_MAX_CHARS = 128_000
+CHAT_SUMMARY_EXCERPT_MAX_CHARS = 8000
 SUMMARY_RETENTION_DAYS = 90
 CHAT_SESSION_RETENTION_DAYS = 60
 FUND_HISTORY_DAYS = 180