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/strategy/templates/gate_transfer_block.html

@@ -1,10 +1,10 @@
 <details class="tip-collapse gate-top-tips-collapse">
     <summary class="tip-collapse-summary">
-        实时价格更新：<span id="price-last-updated">--</span>（北京时间 UTC+8）
+        实时价格更新:<span id="price-last-updated">--</span>(北京时间 UTC+8)
         <span class="tip-collapse-hint">· 划转规则</span>
     </summary>
     <div class="tip-collapse-body rule-tip gate-transfer-tip">
-        划转：自动划转 {{ '开启' if auto_transfer_enabled else '关闭' }}（每天<strong>北京时间 {{ auto_transfer_bj_hour }}:00</strong>起该整点小时内尝试；账簿按 <strong>UTC 自然日</strong>去重；将 {{ auto_transfer_to }} 调整至 {{ transfer_amount_fmt|default(funds_fmt(auto_transfer_amount)) }}U：不足从 {{ auto_transfer_from }} 划入、超出划回 {{ auto_transfer_from }}；<strong>持仓中不划转</strong>并微信通知）
+        划转:自动划转 {{ '开启' if auto_transfer_enabled else '关闭' }}(每天<strong>北京时间 {{ auto_transfer_bj_hour }}:00</strong>起该整点小时内尝试;账簿按 <strong>UTC 自然日</strong>去重;将 {{ auto_transfer_to }} 调整至 {{ transfer_amount_fmt|default(funds_fmt(auto_transfer_amount)) }}U:不足从 {{ auto_transfer_from }} 划入,超出划回 {{ auto_transfer_from }};<strong>持仓中不划转</strong>并微信通知)
     </div>
 </details>
 <form action="/manual_transfer" method="post" class="form-row gate-transfer-form">