Normalize fullwidth punctuation to ASCII across codebase.

Add scripts/normalize_ambiguous_unicode.py; fix corrupted patch_instance_theme_templates.py. Preserves curly quotes in string literals; removes Git homoglyph warnings on .env.example.

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

lib/options/options_register.py

@@ -1,4 +1,4 @@
-"""OKX 期权模块：Flask 路由注册。"""
+"""OKX 期权模块:Flask 路由注册."""
 from __future__ import annotations
 
 import os
@@ -124,7 +124,7 @@ def _build_cfg(app_module: Any) -> dict[str, Any]:
 
 def _require_options_ex(cfg: dict[str, Any]):
     if not cfg.get("enabled"):
-        return None, "期权模块未启用，请在 .env 设置 OKX_OPTIONS_ENABLED=true 并重启 PM2"
+        return None, "期权模块未启用,请在 .env 设置 OKX_OPTIONS_ENABLED=true 并重启 PM2"
     ex = cfg.get("exchange_options")
     ok, reason = cfg["options_api_ready"](ex)
     if not ok:
@@ -227,7 +227,7 @@ def register_options_routes(app: Flask, cfg: dict[str, Any]) -> None:
             return jsonify(q)
         ask = q.get("ask")
         if ask is None or ask <= 0:
-            return jsonify({"ok": False, "msg": "暂无卖一价，无法买入"})
+            return jsonify({"ok": False, "msg": "暂无卖一价,无法买入"})
         ct_mult = float(q.get("ct_mult") or 0.01)
         min_sz = int(q.get("min_sz") or 1)
         eth_amount = None
@@ -341,7 +341,7 @@ def register_options_routes(app: Flask, cfg: dict[str, Any]) -> None:
         q = cfg["quote_option_contract"](ex, inst_id)
         bid = q.get("bid")
         if not use_market and (bid is None or bid <= 0):
-            return jsonify({"ok": False, "msg": "暂无买一价，无法限价平仓"})
+            return jsonify({"ok": False, "msg": "暂无买一价,无法限价平仓"})
         raw_positions = cfg["fetch_option_positions"](ex)
         pos = next((p for p in raw_positions if str(p.get("instId")) == inst_id), None)
         if not pos: