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>

manual_trading_hub/scripts/run_agent.sh

@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-# PM2 子代理入口：在策略目录（cwd）加载 .env 后启动 agent.py
+# PM2 子代理入口:在策略目录(cwd)加载 .env 后启动 agent.py
 set -e
 set -o pipefail
 
@@ -17,20 +17,20 @@ _PM2_PORT="${PORT:-}"
 _PM2_HOST="${HOST:-}"
 
 if [[ ! -x "${VENV_PY}" ]]; then
-  echo "未找到 ${VENV_PY}，请先在 manual_trading_hub: python3 -m venv .venv && pip install -r requirements.txt" >&2
+  echo "未找到 ${VENV_PY},请先在 manual_trading_hub: python3 -m venv .venv && pip install -r requirements.txt" >&2
   exit 1
 fi
 
 if [[ -f .env ]]; then
   if grep -q $'\r' .env 2>/dev/null; then
-    echo "警告: $(pwd)/.env 含 Windows 换行(CRLF)，请在仓库根执行: bash manual_trading_hub/scripts/fix_env_crlf.sh" >&2
+    echo "警告: $(pwd)/.env 含 Windows 换行(CRLF),请在仓库根执行: bash manual_trading_hub/scripts/fix_env_crlf.sh" >&2
   fi
   if ! load_dotenv_file ".env"; then
     echo "错误: $(pwd)/.env 加载失败" >&2
     exit 1
   fi
 else
-  echo "警告: $(pwd) 下无 .env，agent 可能缺少 API 密钥" >&2
+  echo "警告: $(pwd) 下无 .env,agent 可能缺少 API 密钥" >&2
 fi
 
 [[ -n "${_PM2_EXCHANGE}" ]] && export EXCHANGE="${_PM2_EXCHANGE}"
@@ -39,7 +39,7 @@ fi
 
 if command -v ss >/dev/null 2>&1 && [[ -n "${PORT:-}" ]]; then
   if ss -tln 2>/dev/null | grep -q ":${PORT} "; then
-    echo "错误: 端口 ${PORT} 已被占用，agent 无法监听（exchange=${EXCHANGE:-?}）" >&2
+    echo "错误: 端口 ${PORT} 已被占用,agent 无法监听(exchange=${EXCHANGE:-?})" >&2
     exit 1
   fi
 fi