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/env/shared_env_lib.py

@@ -1,4 +1,4 @@
-"""中控统一 AI 环境变量：字段定义、读写、同步三实例。"""
+"""中控统一 AI 环境变量:字段定义,读写,同步三实例."""
 from __future__ import annotations
 
 import os
@@ -26,7 +26,7 @@ AI_ENV_FIELDS: list[tuple[str, str, str]] = [
     ("OPENAI_MODEL", "云端模型", ""),
     ("OLLAMA_API", "Ollama 地址", "本地服务 URL"),
     ("AI_MODEL", "Ollama 模型", ""),
-    ("AI_TIMEOUT_SECONDS", "请求超时（秒）", "默认 120"),
+    ("AI_TIMEOUT_SECONDS", "请求超时(秒)", "默认 120"),
 ]
 
 AI_ENV_KEYS = frozenset(k for k, _l, _n in AI_ENV_FIELDS)
@@ -108,7 +108,7 @@ def build_ai_env_payload(env_path: str | None = None, example_path: str | None =
 
 
 def ai_sync_status() -> dict[str, Any]:
-    """比较 hub 与三实例 AI 键是否一致（用于 UI 提示）。"""
+    """比较 hub 与三实例 AI 键是否一致(用于 UI 提示)."""
     hub_vals = env_get_all(read_env_lines(hub_env_path()))
     per_instance: dict[str, dict[str, Any]] = {}
     all_ok = True
@@ -165,7 +165,7 @@ def validate_ai_env_updates(updates: dict[str, str], example_path: str | None =
 
 
 def apply_ai_env_to_all(updates: dict[str, str]) -> dict[str, Any]:
-    """写入 hub .env 并强制同步三实例相同键。"""
+    """写入 hub .env 并强制同步三实例相同键."""
     clean, errors = validate_ai_env_updates(updates)
     if errors:
         return {"ok": False, "errors": errors, "changed": {}}
@@ -196,7 +196,7 @@ def apply_ai_env_to_all(updates: dict[str, str]) -> dict[str, Any]:
 
 
 def restart_instances_then_hub_pm2() -> dict[str, Any]:
-    """先重启三实例，最后重启中控（避免当前请求被中断）。"""
+    """先重启三实例,最后重启中控(避免当前请求被中断)."""
     if not sys.platform.startswith("linux"):
         return {"ok": False, "msg": "仅 Linux 服务器支持 PM2 重启", "results": []}
     from lib.instance.instance_pm2_lib import restart_instance_pm2
@@ -212,7 +212,7 @@ def restart_instances_then_hub_pm2() -> dict[str, Any]:
 
 
 def restart_hub_and_instances_pm2() -> dict[str, Any]:
-    """兼容旧调用：与 restart_instances_then_hub_pm2 相同顺序。"""
+    """兼容旧调用:与 restart_instances_then_hub_pm2 相同顺序."""
     return restart_instances_then_hub_pm2()