feat(hub): add AI coach page with daily summary and chat

Aggregate four-account trades via hub_ai module and /api/hub/trades/today; store sessions in JSON; default OpenAI config matches instances.

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

manual_trading_hub/hub_ai/config.py

@@ -0,0 +1,33 @@
+"""中控 AI 配置（读 hub .env，与实例同名 AI 变量）。"""
+from __future__ import annotations
+
+import os
+
+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
+SUMMARY_RETENTION_DAYS = 90
+CHAT_SESSION_RETENTION_DAYS = 60
+
+
+def trading_day_reset_hour() -> int:
+    try:
+        return int(os.getenv("TRADING_DAY_RESET_HOUR", "8") or "8")
+    except ValueError:
+        return 8
+
+
+def hub_flask_timeout() -> float:
+    try:
+        return float(os.getenv("HUB_FLASK_TIMEOUT", "10") or "10")
+    except ValueError:
+        return 10.0
+
+
+def hub_agent_timeout() -> float:
+    try:
+        return float(os.getenv("HUB_AGENT_TIMEOUT", "8") or "8")
+    except ValueError:
+        return 8.0