Turn position/margin/sizing/direction env fields into dropdown selects.

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

lib/env/env_schema.py

@@ -102,6 +102,28 @@ SENSITIVE_EXACT = frozenset({
 
 SENSITIVE_SUBSTR = ("_SECRET", "_PASSPHRASE", "_API_KEY", "_PASSWORD")
 
+# env 配置页下拉:value → 中文标签
+SELECT_OPTIONS: dict[str, tuple[tuple[str, str], ...]] = {
+    "OKX_TD_MODE": (("cross", "全仓"), ("isolated", "逐仓")),
+    "OKX_POS_MODE": (("hedge", "双向"), ("net", "单向净持仓")),
+    "BINANCE_MARGIN_MODE": (("cross", "全仓"), ("isolated", "逐仓")),
+    "BINANCE_POSITION_MODE": (("hedge", "双向"), ("one_way", "单向")),
+    "GATE_TD_MODE": (("cross", "全仓"), ("isolated", "逐仓")),
+    "GATE_POS_MODE": (("hedge", "双向"), ("single", "单向")),
+    "POSITION_SIZING_MODE": (("risk", "以损定仓"), ("full_margin", "全仓杠杆")),
+    "TRADE_DIRECTION": (
+        ("both", "双向均可"),
+        ("long_only", "仅做多"),
+        ("short_only", "仅做空"),
+    ),
+}
+
+_SELECT_ALIASES: dict[str, dict[str, str]] = {
+    "OKX_TD_MODE": {"cross_margin": "cross", "isolated_margin": "isolated"},
+    "BINANCE_MARGIN_MODE": {"cross_margin": "cross", "isolated_margin": "isolated"},
+    "GATE_TD_MODE": {"cross_margin": "cross", "isolated_margin": "isolated"},
+}
+
 
 def _is_sensitive(key: str) -> bool:
     if key in SENSITIVE_EXACT:
@@ -109,6 +131,27 @@ def _is_sensitive(key: str) -> bool:
     return any(s in key for s in SENSITIVE_SUBSTR)
 
 
+def select_options_for(key: str) -> list[dict[str, str]]:
+    opts = SELECT_OPTIONS.get(key) or ()
+    return [{"value": v, "label": lab} for v, lab in opts]
+
+
+def normalize_select_value(key: str, value: Optional[str]) -> str:
+    raw = (value or "").strip()
+    if not raw:
+        return ""
+    low = raw.lower()
+    aliases = _SELECT_ALIASES.get(key) or {}
+    if low in aliases:
+        return aliases[low]
+    allowed = {v for v, _ in (SELECT_OPTIONS.get(key) or ())}
+    if low in allowed:
+        return low
+    if raw in allowed:
+        return raw
+    return raw
+
+
 def _restart_required(key: str) -> bool:
     if key in HOT_RELOAD_EXACT:
         return False
@@ -126,6 +169,8 @@ def _hot_reload(key: str) -> bool:
 
 
 def _field_type(key: str, value: str) -> str:
+    if key in SELECT_OPTIONS:
+        return "select"
     low = (value or "").strip().lower()
     if low in ("true", "false"):
         return "bool"
@@ -286,6 +331,20 @@ def validate_env_updates(groups: list[dict], updates: dict[str, str]) -> tuple[d
                 errors.append(f"{key} 须为 true/false")
                 continue
             val = "true" if low in ("true", "1", "yes", "on") else "false"
+        elif ftype == "select" or key in SELECT_OPTIONS:
+            allowed_vals = {
+                str(o.get("value") if isinstance(o, dict) else o[0]).lower()
+                for o in (allowed[key].get("options") or select_options_for(key))
+            }
+            norm = normalize_select_value(key, val)
+            if allowed_vals and norm.lower() not in allowed_vals:
+                labels = " / ".join(
+                    f"{o['value']}({o['label']})" if isinstance(o, dict) else f"{o[0]}({o[1]})"
+                    for o in (allowed[key].get("options") or select_options_for(key))
+                )
+                errors.append(f"{key} 须为: {labels}")
+                continue
+            val = norm
         clean[key] = val
     return clean, errors