refactor: 收敛 factory 模块级副作用并统一 async 路径进度为异步后端

- 将 configure_token_codec/configure_plugin_routes 移入 create_app()，消除 import 期副作用
- runtime 层新增 AsyncCacheProxy/AsyncTTLCache/AsyncProgressHelper，共享 progress region
- search/system/history/scheduler/dashboard 的事件循环路径切换异步进度后端
- 同步进度回调经事件循环提交或线程池执行，避免阻塞事件循环

app/runtime/progress.py

@@ -1,7 +1,7 @@
 from enum import Enum
 from typing import Optional, Union
 
-from app.runtime.cache import TTLCache
+from app.runtime.cache import AsyncTTLCache, TTLCache
 from app.runtime.localization import LocaleHelper
 from app.schemas.types import ProgressKey
 
@@ -115,3 +115,118 @@ class ProgressHelper:
                 )
             detail["data"] = localized_data
         return detail
+
+
+class AsyncProgressHelper:
+    """
+    处理进度辅助类（异步）
+
+    与 ProgressHelper 共用同一个进度 region：内存后端共享进程内存储，
+    Redis 后端共享同一键空间，因此同步写入、异步读取（或反之）均互通。
+    供事件循环上的异步调用方使用，避免同步缓存后端阻塞事件循环。
+    """
+
+    def __init__(self, key: Union[ProgressKey, str]) -> None:
+        """为指定业务键绑定独立的异步进度缓存区域。"""
+        if isinstance(key, Enum):
+            key = key.value
+        self._key = key
+        self._progress = AsyncTTLCache(region="progress", maxsize=1024, ttl=24 * 60 * 60)
+
+    async def __reset(self) -> None:
+        """
+        重置进度
+        """
+        await self._progress.set(self._key, {
+            "enable": False,
+            "value": 0,
+            "text": "请稍候...",
+            "data": {}
+        })
+
+    async def start(self) -> None:
+        """
+        开始进度
+        """
+        await self.__reset()
+        current = await self._progress.get(self._key)
+        if not current:
+            return
+        current['enable'] = True
+        await self._progress.set(self._key, current)
+
+    async def end(
+            self,
+            text: Optional[str] = "",
+            data: Optional[dict] = None,
+            value: Optional[Union[float, int]] = 100,
+    ) -> None:
+        """
+        结束进度
+        """
+        current = await self._progress.get(self._key)
+        if not current:
+            return
+        if data is not None:
+            if not current.get('data'):
+                current['data'] = {}
+            current['data'].update(data)
+        current["enable"] = False
+        if value is not None:
+            current["value"] = max(min(float(value), 100), 0)
+        current["text"] = text or ""
+        await self._progress.set(self._key, current)
+
+    async def update(
+            self,
+            value: Optional[Union[float, int]] = None,
+            text: Optional[str] = None,
+            data: Optional[dict] = None,
+    ) -> None:
+        """
+        更新进度
+        """
+        current = await self._progress.get(self._key)
+        if not current or not current.get('enable'):
+            return
+        if value is not None:
+            current['value'] = max(min(float(value), 100), 0)
+        if text is not None:
+            current['text'] = text
+        if data is not None:
+            if not current.get('data'):
+                current['data'] = {}
+            current['data'].update(data)
+        await self._progress.set(self._key, current)
+
+    async def get(self, locale: Optional[str] = None) -> Optional[dict]:
+        """
+        获取当前进度，并按语言补充前端展示字段。
+
+        :param locale: 目标语言，未传入时使用当前请求上下文语言
+        :return: 当前进度字典
+        """
+        current = await self._progress.get(self._key)
+        if not current:
+            return current
+
+        detail = current.copy()
+        text = detail.get("text")
+        if isinstance(text, str):
+            detail["text_i18n"] = LocaleHelper.translate_text(text, locale=locale)
+
+        data = detail.get("data")
+        if isinstance(data, dict):
+            localized_data = data.copy()
+            error = localized_data.get("error")
+            message = localized_data.get("message")
+            if isinstance(error, str):
+                localized_data["error_i18n"] = LocaleHelper.translate_text(
+                    error, locale=locale
+                )
+            if isinstance(message, str):
+                localized_data["message_i18n"] = LocaleHelper.translate_text(
+                    message, locale=locale
+                )
+            detail["data"] = localized_data
+        return detail