Show trading playbook in hub strategy docs.

Add an 执行手册 tab that renders docs/交易执行手册-期权与Gate.md as the default strategy view.

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

lib/hub/hub_strategy_lib.py

@@ -10,9 +10,15 @@ from typing import Any
 
 from lib.paths import REPO_ROOT
 
-STRATEGY_EXCHANGES: tuple[str, ...] = ("binance", "okx", "gate")
+STRATEGY_EXCHANGES: tuple[str, ...] = ("playbook", "binance", "okx", "gate")
 
 STRATEGY_META: dict[str, dict[str, str]] = {
+    "playbook": {
+        "label": "执行手册",
+        "title": "交易执行手册（期权为主 · Gate 为辅）",
+        # 相对仓库根;其余条目用 md_file 相对 docs/strategy
+        "md_rel": "docs/交易执行手册-期权与Gate.md",
+    },
     "binance": {
         "label": "币安",
         "title": "币安·山寨多头趋势",
@@ -43,6 +49,9 @@ def _md_path(exchange_key: str) -> Path:
     meta = STRATEGY_META.get((exchange_key or "").strip().lower())
     if not meta:
         raise KeyError(exchange_key)
+    md_rel = (meta.get("md_rel") or "").strip()
+    if md_rel:
+        return REPO_ROOT / md_rel
     return _strategy_dir() / meta["md_file"]