diff --git a/app/agent/tools/impl/_plugin_tool_utils.py b/app/agent/tools/impl/_plugin_tool_utils.py
index 6a92233f2..fc56dd7e1 100644
--- a/app/agent/tools/impl/_plugin_tool_utils.py
+++ b/app/agent/tools/impl/_plugin_tool_utils.py
@@ -70,7 +70,7 @@ def build_preview_payload(value: Any, max_chars: Optional[int]) -> tuple[bool, i
 def refresh_plugin_registrations(plugin_id: str) -> None:
     """重新注册插件的定时任务、命令和动态 API 路由。"""
     # 这些依赖只在真正执行重载时才导入，避免普通查询工具引入不必要的初始化开销。
-    from app.application.plugins import register_plugin_api
+    from app.application.plugin.routes import register_plugin_api
     from app.application.commands import init_commands
     from app.application.scheduling import update_plugin_job
 
@@ -380,10 +380,8 @@ async def uninstall_plugin_runtime(plugin_id: str) -> dict[str, Any]:
     """
     按现有卸载逻辑移除插件，并清理运行态注册与分组信息。
     """
-    from app.application.plugins import (
-        remove_plugin_api,
-        remove_plugin_from_folders,
-    )
+    from app.application.plugin.folders import remove_plugin_from_folders
+    from app.application.plugin.routes import remove_plugin_api
     from app.application.scheduling import remove_plugin_job
 
     config_oper = SystemConfigOper()
diff --git a/app/api/deps.py b/app/api/deps.py
index c3f120154..d2d922ab6 100644
--- a/app/api/deps.py
+++ b/app/api/deps.py
@@ -41,7 +41,7 @@ from app.application.history import (
 )
 from app.application.plugin.config import PluginConfigCommand
 from app.application.commands import init_commands
-from app.application.plugins import register_plugin_api
+from app.application.plugin.routes import register_plugin_api
 from app.application.scheduling import update_plugin_job
 from app.adapters.web.security.access import verify_token
 from app.application.security.user import UserService
diff --git a/app/api/endpoints/plugin.py b/app/api/endpoints/plugin.py
index 8b9f0a3b7..ff0fc50d8 100644
--- a/app/api/endpoints/plugin.py
+++ b/app/api/endpoints/plugin.py
@@ -24,11 +24,8 @@ from app.schemas.plugin import PluginSidebarNavItem as _SchemaPluginSidebarNavIt
 from app.schemas.response import Response as _SchemaResponse
 from app.schemas.token import TokenPayload as _SchemaTokenPayload
 from app.api.response import ResponseAPIRouter
-from app.application.plugins import (
-    register_plugin_api,
-    remove_plugin_api,
-    remove_plugin_from_folders,
-)
+from app.application.plugin.folders import remove_plugin_from_folders
+from app.application.plugin.routes import register_plugin_api, remove_plugin_api
 from app.application.plugin.install import PluginInstallCommand
 from app.application.plugin.config import PluginConfigCommand
 from app.application.commands import init_commands
diff --git a/app/application/plugin/folders.py b/app/application/plugin/folders.py
new file mode 100644
index 000000000..2ad6d4fd9
--- /dev/null
+++ b/app/application/plugin/folders.py
@@ -0,0 +1,38 @@
+"""插件文件夹应用用例。"""
+
+from app.application.configuration import get_configured_system_config
+from app.runtime.log import logger
+from app.schemas.types import SystemConfigKey
+
+
+def remove_plugin_from_folders(plugin_id: str) -> None:
+    """
+    从所有配置文件夹中移除指定插件。
+
+    同时兼容当前的字典格式和迁移前的插件列表格式，避免卸载旧版本插件时留下
+    不可见的文件夹引用。
+    :param plugin_id: 要移除的插件 ID
+    """
+    try:
+        config_oper = get_configured_system_config()
+        folders = config_oper.get(SystemConfigKey.PluginFolders) or {}
+        modified = False
+
+        for folder_name, folder_data in folders.items():
+            if isinstance(folder_data, dict) and "plugins" in folder_data:
+                if plugin_id in folder_data["plugins"]:
+                    folder_data["plugins"].remove(plugin_id)
+                    logger.info(f"已从文件夹 '{folder_name}' 中移除插件 {plugin_id}")
+                    modified = True
+            elif isinstance(folder_data, list) and plugin_id in folder_data:
+                folder_data.remove(plugin_id)
+                logger.info(f"已从文件夹 '{folder_name}' 中移除插件 {plugin_id}")
+                modified = True
+
+        if modified:
+            config_oper.set(SystemConfigKey.PluginFolders, folders)
+        else:
+            logger.debug(f"插件 {plugin_id} 不在任何文件夹中，无需移除")
+    except Exception as error:
+        # 文件夹配置损坏不应阻断插件代码、数据和定时任务的卸载流程。
+        logger.error(f"从文件夹中移除插件时出错：{error}")
diff --git a/app/application/plugin/routes.py b/app/application/plugin/routes.py
index bec8fbd87..f7bea7e3e 100644
--- a/app/application/plugin/routes.py
+++ b/app/application/plugin/routes.py
@@ -1,19 +1,47 @@
-"""动态插件路由应用端口。"""
+"""动态插件路由应用端口与注册用例。"""
 
 from typing import Optional, Protocol
 
 
 class DynamicRouteRegistry(Protocol):
-    """插件生命周期操作动态 HTTP 路由所需的最小端口。"""
+    """插件生命周期更新动态 HTTP 路由所需的最小端口。"""
 
     def update(self, plugin_id: Optional[str], action: str) -> None:
         """新增或移除指定插件的动态路由。"""
         ...
 
-    def remove(self, plugin_id: str) -> bool:
-        """移除指定插件的全部动态路由。"""
-        ...
 
-    def clean(self, existing_paths: dict) -> None:
-        """清理重建过程中可能重复的受保护路由。"""
-        ...
+_route_registry: Optional[DynamicRouteRegistry] = None
+
+
+def configure_plugin_routes(registry: DynamicRouteRegistry) -> None:
+    """由 HTTP 组合根注入动态插件路由适配器。"""
+    global _route_registry
+    _route_registry = registry
+
+
+def _get_route_registry() -> DynamicRouteRegistry:
+    """返回已注入的动态插件路由端口。"""
+    if _route_registry is None:
+        raise RuntimeError("插件路由服务尚未由 HTTP 组合根配置")
+    return _route_registry
+
+
+def register_plugin_api(plugin_id: Optional[str] = None) -> None:
+    """动态注册插件 API。"""
+    _update_plugin_api_routes(plugin_id, action="add")
+
+
+def remove_plugin_api(plugin_id: str) -> None:
+    """动态移除单个插件的 API。"""
+    _update_plugin_api_routes(plugin_id, action="remove")
+
+
+def _update_plugin_api_routes(plugin_id: Optional[str], action: str) -> None:
+    """
+    更新插件动态路由。
+
+    :param plugin_id: 插件 ID；注册时为空表示处理全部插件
+    :param action: ``add`` 或 ``remove``
+    """
+    _get_route_registry().update(plugin_id, action)
diff --git a/app/application/plugins.py b/app/application/plugins.py
deleted file mode 100644
index b0dea907a..000000000
--- a/app/application/plugins.py
+++ /dev/null
@@ -1,114 +0,0 @@
-"""插件 API 动态路由服务。
-
-把插件 API 的动态注册/移除从 HTTP 端点层下沉到 application 层：
-FastAPI 实例由组合根（factory 创建应用后）注入，端点与 Agent 工具
-统一经本模块操作路由，消除 api.endpoints 对 factory 的反向依赖。
-
-依赖方向：
-
-    api.endpoints.plugin / agent.tools -> application.plugins <- factory（注入实例）
-"""
-
-from typing import Optional
-
-from app.application.plugin.routes import DynamicRouteRegistry
-from app.application.configuration import get_configured_system_config
-from app.runtime.log import logger
-from app.schemas.types import SystemConfigKey
-
-_route_registry: Optional[DynamicRouteRegistry] = None
-
-
-def configure_plugin_routes(registry: DynamicRouteRegistry) -> None:
-    """由 HTTP 组合根注入动态插件路由适配器。"""
-    global _route_registry
-    _route_registry = registry
-
-
-def _get_route_registry() -> DynamicRouteRegistry:
-    """返回已注入的动态插件路由端口。"""
-    if _route_registry is None:
-        raise RuntimeError("插件路由服务尚未由 HTTP 组合根配置")
-    return _route_registry
-
-
-def register_plugin_api(plugin_id: Optional[str] = None) -> None:
-    """
-    动态注册插件 API
-    :param plugin_id: 插件 ID，如果为 None，则注册所有插件
-    """
-    _update_plugin_api_routes(plugin_id, action="add")
-
-
-def remove_plugin_api(plugin_id: str) -> None:
-    """
-    动态移除单个插件的 API
-    :param plugin_id: 插件 ID
-    """
-    _update_plugin_api_routes(plugin_id, action="remove")
-
-
-def _update_plugin_api_routes(plugin_id: Optional[str], action: str) -> None:
-    """
-    插件 API 路由注册和移除
-    :param plugin_id: 插件 ID，如果 action 为 "add" 且 plugin_id 为 None，则处理所有插件
-                      如果 action 为 "remove"，plugin_id 必须是有效的插件 ID
-    :param action: "add" 或 "remove"，决定是添加还是移除路由
-    """
-    _get_route_registry().update(plugin_id, action)
-
-
-def _remove_routes(plugin_id: str) -> bool:
-    """
-    移除与单个插件相关的路由
-    :param plugin_id: 插件 ID
-    :return: 是否有路由被移除
-    """
-    return _get_route_registry().remove(plugin_id)
-
-
-def _clean_protected_routes(existing_paths: dict) -> None:
-    """
-    清理受保护的路由，防止在插件操作中被删除或重复添加
-    :param existing_paths: 当前应用的路由路径映射
-    """
-    _get_route_registry().clean(existing_paths)
-
-
-def remove_plugin_from_folders(plugin_id: str):
-    """
-    从所有文件夹中移除指定的插件
-    :param plugin_id: 要移除的插件ID
-    """
-    try:
-        config_oper = get_configured_system_config()
-        # 获取插件文件夹配置
-        folders = config_oper.get(SystemConfigKey.PluginFolders) or {}
-
-        # 标记是否有修改
-        modified = False
-
-        # 遍历所有文件夹，移除指定插件
-        for folder_name, folder_data in folders.items():
-            if isinstance(folder_data, dict) and "plugins" in folder_data:
-                # 新格式：{"plugins": [...], "order": ..., "icon": ...}
-                if plugin_id in folder_data["plugins"]:
-                    folder_data["plugins"].remove(plugin_id)
-                    logger.info(f"已从文件夹 '{folder_name}' 中移除插件 {plugin_id}")
-                    modified = True
-            elif isinstance(folder_data, list):
-                # 旧格式：直接是插件列表
-                if plugin_id in folder_data:
-                    folder_data.remove(plugin_id)
-                    logger.info(f"已从文件夹 '{folder_name}' 中移除插件 {plugin_id}")
-                    modified = True
-
-        # 如果有修改，保存更新后的文件夹配置
-        if modified:
-            config_oper.set(SystemConfigKey.PluginFolders, folders)
-        else:
-            logger.debug(f"插件 {plugin_id} 不在任何文件夹中，无需移除")
-
-    except Exception as e:
-        logger.error(f"从文件夹中移除插件时出错：{str(e)}")
-        # 文件夹处理失败不影响插件卸载的整体流程
diff --git a/app/application/subscribe.py b/app/application/subscription/write.py
similarity index 86%
rename from app/application/subscribe.py
rename to app/application/subscription/write.py
index 960b03155..581fbba71 100644
--- a/app/application/subscribe.py
+++ b/app/application/subscription/write.py
@@ -1,7 +1,7 @@
 """
-订阅的写入路径。
+订阅写入应用用例。
 
-这两个函数把 MediaInfo / MusicInfo 翻译成一行订阅，是订阅表的唯一写入口。翻译此前
+本模块把 MediaInfo / MusicInfo 翻译成一行订阅，是订阅表的唯一业务写入口。翻译此前
 长在 SubscribeOper.add 上，但取标题、选海报尺寸、判音乐实体、决定哪几个字段构成一条
 订阅的身份，都是订阅业务的规则而非数据访问——Oper 只该收敛查询，领域对象不该出现在
 它的入参里。搬上来之后 SubscribeOper 收到的是纯粹的持久化字典，与
@@ -14,6 +14,7 @@ app/application/history.py 里整理历史的写入路径同构。
 张表。同步与异步是两份逐字复制的实现，改一条漏一条就是真实缺陷，故翻译与身份构造由
 下方 _translate 单点承担，两条链路只在「怎么查、怎么写」上分叉。
 """
+
 from collections.abc import Callable
 from typing import Optional, Protocol, Tuple
 
@@ -29,7 +30,12 @@ INCOMPLETE_IDENTITY = (0, "媒体身份不完整")
 class SubscribeWriter(Protocol):
     """订阅写入应用服务使用的数据端口。"""
 
-    def add(self, identity: dict, payload: dict, username: Optional[str] = None) -> Tuple[int, str]:
+    def add(
+        self,
+        identity: dict,
+        payload: dict,
+        username: Optional[str] = None,
+    ) -> Tuple[int, str]:
         """同步新增订阅。"""
 
     async def async_add(
@@ -73,8 +79,10 @@ def _music_entity(mediainfo: MediaInfo | MusicInfo) -> Optional[str]:
     return getattr(mediainfo, "music_type", None)
 
 
-def _translate(mediainfo: MediaInfo | MusicInfo,
-               kwargs: dict) -> Optional[Tuple[dict, dict, Optional[str]]]:
+def _translate(
+    mediainfo: MediaInfo | MusicInfo,
+    kwargs: dict,
+) -> Optional[Tuple[dict, dict, Optional[str]]]:
     """
     把识别结果翻译成查重身份与写入字段。
 
@@ -119,13 +127,16 @@ def _translate(mediainfo: MediaInfo | MusicInfo,
     return identity, payload, username
 
 
-def add_subscribe(mediainfo: MediaInfo | MusicInfo,
-                  subscribe_oper: Optional[SubscribeWriter] = None,
-                  **kwargs) -> Tuple[int, str]:
+def add_subscribe(
+    mediainfo: MediaInfo | MusicInfo,
+    subscribe_oper: Optional[SubscribeWriter] = None,
+    **kwargs,
+) -> Tuple[int, str]:
     """
     新增订阅。
+
     :param mediainfo: 识别结果
-    :param subscribe_oper: 复用的订阅操作对象，未传时新建
+    :param subscribe_oper: 复用的订阅操作对象，未传时由启动组合根提供
     :param kwargs: 订阅设置；owner_scope 为真时按用户名限定查重范围
     :return: (订阅 ID, 结果说明)；ID 为 0 表示未新增
     """
@@ -137,13 +148,16 @@ def add_subscribe(mediainfo: MediaInfo | MusicInfo,
     return oper.add(identity=identity, payload=payload, username=username)
 
 
-async def async_add_subscribe(mediainfo: MediaInfo | MusicInfo,
-                              subscribe_oper: Optional[SubscribeWriter] = None,
-                              **kwargs) -> Tuple[int, str]:
+async def async_add_subscribe(
+    mediainfo: MediaInfo | MusicInfo,
+    subscribe_oper: Optional[SubscribeWriter] = None,
+    **kwargs,
+) -> Tuple[int, str]:
     """
     异步新增订阅。
+
     :param mediainfo: 识别结果
-    :param subscribe_oper: 复用的订阅操作对象，未传时新建
+    :param subscribe_oper: 复用的订阅操作对象，未传时由启动组合根提供
     :param kwargs: 订阅设置；owner_scope 为真时按用户名限定查重范围
     :return: (订阅 ID, 结果说明)；ID 为 0 表示未新增
     """
@@ -153,3 +167,12 @@ async def async_add_subscribe(mediainfo: MediaInfo | MusicInfo,
     identity, payload, username = translated
     oper = _get_subscribe_writer(subscribe_oper)
     return await oper.async_add(identity=identity, payload=payload, username=username)
+
+
+__all__ = [
+    "INCOMPLETE_IDENTITY",
+    "SubscribeWriter",
+    "add_subscribe",
+    "async_add_subscribe",
+    "configure_subscribe_writer",
+]
diff --git a/app/chain/subscribe.py b/app/chain/subscribe.py
index 60fa41535..5150ff1f3 100644
--- a/app/chain/subscribe.py
+++ b/app/chain/subscribe.py
@@ -41,7 +41,7 @@ from app.application.chain.data import (
 from app.application.configuration import get_configured_system_config
 from app.application.messaging.subscribe import SubscribeInteractionHandler
 from app.application.mediaserver import MediaServerHelper
-from app.application.subscribe import add_subscribe, async_add_subscribe
+from app.application.subscription.write import add_subscribe, async_add_subscribe
 from app.application.subscription.contract import (
     build_subscribe_meta as _build_subscribe_meta,
     subscribe_media_key,
diff --git a/app/db/oper/subscribe.py b/app/db/oper/subscribe.py
index 3b9e6bbbf..5b5863044 100644
--- a/app/db/oper/subscribe.py
+++ b/app/db/oper/subscribe.py
@@ -2,7 +2,7 @@
 订阅数据访问。
 
 本模块只收敛针对订阅表的读写。把 MediaInfo / MusicInfo 翻译成一行订阅是订阅业务的
-规则，住在 app/application/subscribe.py；这里收到的 payload 已经是纯粹的持久化字段，
+规则，住在 app/application/subscription/write.py；这里收到的 payload 已经是纯粹的持久化字段，
 因此不 import 任何领域对象。
 
 留在这一层的只有列类型强转与建库时间戳——它们跟着订阅表的列走，换谁来调都一样。
@@ -97,7 +97,7 @@ class SubscribeOper(DbOper):
         回读不是多余的一次查询——写入可能被唯一约束或事务回滚吞掉，此时若报成功，
         调用方会继续按订阅已建立往下走，用户看到「订阅成功」却永远等不到资源。
         :param identity: 查重身份（media_source/media_id/music_type/season/episode_group）
-        :param payload: 订阅表的写入字段，媒体翻译由 app/application/subscribe.py 完成
+        :param payload: 订阅表的写入字段，媒体翻译由 application/subscription/write.py 完成
         :param username: 非空时把查重限定在该用户的订阅内
         :return: (订阅 ID, 结果说明)；ID 为 0 表示未新增
         """
@@ -115,7 +115,7 @@ class SubscribeOper(DbOper):
         """
         异步新增订阅，语义与 add 完全一致。
         :param identity: 查重身份（media_source/media_id/music_type/season/episode_group）
-        :param payload: 订阅表的写入字段，媒体翻译由 app/application/subscribe.py 完成
+        :param payload: 订阅表的写入字段，媒体翻译由 application/subscription/write.py 完成
         :param username: 非空时把查重限定在该用户的订阅内
         :return: (订阅 ID, 结果说明)；ID 为 0 表示未新增
         """
diff --git a/app/factory.py b/app/factory.py
index f60245ba5..44ae3cafe 100644
--- a/app/factory.py
+++ b/app/factory.py
@@ -9,7 +9,7 @@ from starlette.exceptions import HTTPException
 
 from app.api.response import ResponseAPIRoute
 from app.adapters.web.plugin.routes import FastAPIDynamicRouteRegistry
-from app.application.plugins import configure_plugin_routes
+from app.application.plugin.routes import configure_plugin_routes
 from app.adapters.web.security.access import (
     configure_token_codec,
     verify_apikey,
diff --git a/app/runtime/compat/manifest.py b/app/runtime/compat/manifest.py
index 8685facc0..fb1fdaa83 100644
--- a/app/runtime/compat/manifest.py
+++ b/app/runtime/compat/manifest.py
@@ -112,7 +112,7 @@ MODULE_ALIASES: Dict[str, ModuleAlias] = {
     ),
     "app.db.subscribe_oper": ModuleAlias(
         target="app.sdk._legacy.subscribe",
-        replacement="app.application.subscribe.add_subscribe",
+        replacement="app.application.subscription.write.add_subscribe",
         introduced="v3.0.0",
         owner="sdk",
     ),
diff --git a/app/sdk/_legacy/subscribe.py b/app/sdk/_legacy/subscribe.py
index 866f868ba..ed3f80df1 100644
--- a/app/sdk/_legacy/subscribe.py
+++ b/app/sdk/_legacy/subscribe.py
@@ -2,7 +2,7 @@
 
 from typing import Any, Optional
 
-from app.application.subscribe import add_subscribe, async_add_subscribe
+from app.application.subscription.write import add_subscribe, async_add_subscribe
 from app.db.models.subscribe import Subscribe
 from app.db.oper.subscribe import SubscribeOper as CanonicalSubscribeOper
 from app.domain.context import MediaInfo, MusicInfo
diff --git a/app/startup/modules_initializer.py b/app/startup/modules_initializer.py
index 2355df48f..d6736eac2 100644
--- a/app/startup/modules_initializer.py
+++ b/app/startup/modules_initializer.py
@@ -54,7 +54,7 @@ from app.application.site.health import SiteHealthService, configure_site_health
 from app.application.workflow import WorkflowQueryService, configure_workflow_query
 from app.application.agentdata import configure_agent_data_ports
 from app.api.data import configure_api_data_ports
-from app.application.subscribe import configure_subscribe_writer
+from app.application.subscription.write import configure_subscribe_writer
 from app.application.maintenance import (
     DataCleanupService,
     configure_cleanup_service_factory,
diff --git a/docs/architecture-overview.md b/docs/architecture-overview.md
index 1b013bbe4..4d0c03bb0 100644
--- a/docs/architecture-overview.md
+++ b/docs/architecture-overview.md
@@ -7,7 +7,7 @@
 > [`docs/rules/04-design-patterns.md`](rules/04-design-patterns.md) 为准，本文与其保持一致；
 > 如出现差异，以规则文档为准。
 >
-> *Last Updated: 2026-08-17*
+> *Last Updated: 2026-08-18*
 
 ---
 
@@ -28,7 +28,8 @@ flowchart LR
 
     subgraph 后端["MoviePilot 后端（FastAPI）"]
         API["REST API / MCP / 兼容协议"]
-        Core["核心引擎<br/>Chain / Module / Plugin / Agent"]
+        Core["核心引擎<br/>Chain / Application / Module / Plugin / Agent"]
+        Persist["持久化端口 / Oper"]
     end
 
     subgraph 外部服务["外部生态"]
@@ -45,7 +46,8 @@ flowchart LR
     Msg -->|Webhook / 轮询| Core
     ExtAgent -->|JSON-RPC| API
     API --> Core
-    Core --> DB
+    Core -->|通过应用端口 / Oper| Persist
+    Persist --> DB
     Core <--> Site
     Core <--> DL
     Core <--> MS
@@ -69,7 +71,7 @@ flowchart TB
         Workflow["app/workflow<br/>工作流"]
         Scheduler["app/scheduler<br/>定时任务"]
         CLI["app/cli<br/>命令行"]
-        PluginPkg["app/plugins<br/>插件"]
+        PluginPkg["插件运行时目录<br/>app/plugins/*（副本/覆盖层）"]
     end
 
     subgraph 编排层["编排层"]
@@ -96,7 +98,7 @@ flowchart TB
     subgraph 组合根["组合根 / 边界"]
         Startup["app/startup<br/>Composition Root"]
         Sdk["app/sdk<br/>插件稳定导入面"]
-        Compat["app/runtime/compat<br/>旧导入路径映射"]
+        Compat["app/runtime/compat<br/>旧导入路径与符号映射"]
     end
 
     ApiPkg --> Chain
@@ -109,9 +111,9 @@ flowchart TB
 
     Chain -->|run_module 分发| Modules
     Chain --> App
-    Chain --> Db
+    Chain -->|经应用端口 / Oper 适配| Db
     App --> Modules
-    App --> Db
+    App -->|应用端口 / Oper 适配| Db
 
     Modules --> Domain
     App --> Domain
@@ -122,15 +124,25 @@ flowchart TB
     Runtime --> Foundation
     Adapters --> Domain
     Adapters --> Foundation
-    App --> Adapters
+    App -->|允许的技术适配依赖；优先由 startup 装配| Adapters
 
     Startup -.注入/装配.-> Runtime
     Startup -.注入/装配.-> App
     Startup -.注入/装配.-> Modules
     Sdk -.门面转发.-> App
     Compat -.惰性映射.-> Sdk
+    Compat -.精确别名.-> App
+    Compat -.精确别名.-> Db
+    Compat -.精确别名.-> Foundation
+    Compat -.精确别名.-> Adapters
 ```
 
+图中的 `Chain → Db`、`Application → Db` 表示通过应用端口、Oper 或组合根注入的实现完成持久化，
+不是允许在用例代码中直接创建数据库引擎或拼接 SQL。`compat` 也不是只面向 SDK 的转发层，
+它按 `app/runtime/compat/manifest.py` 的白名单把已经删除的旧模块/符号精确映射到各自的 canonical
+归属。`app/application/subscribe.py` 与 `app/application/plugins.py` 都是 V3 重构过程中新增、
+未形成插件 ABI 的宿主内部聚合文件，主题实现收口后直接删除，不在 manifest 中制造新的兼容债务。
+
 **依赖方向的核心约束**（由 `tests/test_architecture_dependencies.py` 强制检查）：
 
 | 方向 | 状态 |
@@ -155,26 +167,29 @@ flowchart TB
 | `app/foundation/` | 无状态、无配置、无 I/O 的底层原语：反射/动态导入、加密、DOM、单例、文本、URL、版本比较 | `reflection.py`、`crypto.py`、`singleton.py` |
 | `app/domain/` | 纯 MoviePilot 业务语义：媒体上下文、识别解析、站点状态解释、磁力语义、NFO 刮削 | `context.py`、`metainfo.py`、`meta/`、`scraper.py` |
 | `app/runtime/` | 进程级运行机制：配置、事件、完整日志、缓存契约与内存后端、并发、调度、限流、本地化、GC、重启状态 | `config.py`、`events.py`、`log.py`、`cache.py` |
-| `app/runtime/extensions/` | 模块 / 插件 / 配置化服务 / 托管资源的发现、注册与生命周期适配 | `module_manager.py`、`plugin_manager.py` |
-| `app/runtime/compat/` | 仅标准库的精确旧导入路由（`app.core/helper/utils/log` → canonical） | `manifest.py`、`imports.py` |
+| `app/runtime/extensions/` | 模块 / 插件 / 配置化服务 / 托管资源的发现、注册与生命周期适配；旧管理器文件保留稳定 ABI 门面，具体实现拆在主题子包 | `module_manager.py`、`plugin_manager.py`、`plugin/` |
+| `app/runtime/compat/` | 仅标准库的精确旧模块、包与符号导入路由；不是业务实现，也不是通用 re-export 层 | `manifest.py`、`imports.py` |
 | `app/adapters/network/` | 通用 HTTP、浏览器、DNS、Cloudflare、IP 传输机制 | `http.py`、`browser.py` |
 | `app/adapters/cache/` | Redis 与文件缓存的具体实现 | `backends.py`、`redis.py` |
 | `app/adapters/system/` | OS/文件/进程/stdio/显示/包安装/Rust 加速适配 | `host.py`、`resource.py`、`fsproxy.py` |
 | `app/adapters/external/` | 命名外部生态：插件市场、CookieCloud、OCR、IP 归属、MP Server、微信加密 | `market.py`、`server.py`、`wechat_crypt.py` |
-| `app/application/` | 读取配置/持久化状态的聚焦应用服务：识别、过滤、通知、RSS、站点、下载器、媒体服务器、存储、整理规则等 | `recognition.py`、`filter.py`、`rss.py`、`site/` |
+| `app/application/` | 读取配置/持久化状态的聚焦应用服务：识别、过滤、通知、RSS、站点、下载器、媒体服务器、存储、整理规则等；同一主题拆成子包 | `recognition.py`、`rules.py`、`rss.py`、`site/`、`subscription/`、`plugin/` |
+| `app/application/subscription/` | 订阅新增、查询、变更、删除、媒体身份与搜索契约 | `write.py`、`contract.py`、`mutation.py`、`delete.py`、`identity.py`、`search.py` |
+| `app/application/plugin/` | 插件市场、安装、运行时端口、文件夹操作和动态路由用例；具体 FastAPI 路由适配器在 adapters 层 | `catalog.py`、`install.py`、`runtime.py`、`folders.py`、`routes.py` |
 | `app/application/messaging/` | 消息渲染/路由、命令交互会话、插件按钮回调、Agent 消息桥接 | `message.py`、`router.py`、`agent.py` |
 | `app/application/security/` | 认证、授权、Cookie、Passkey、OTP/二次认证、SSRF 与 URL/路径安全 | `auth.py`、`url.py`、`twofactor.py` |
 | `app/chain/` | 跨入口复用的用例编排：订阅、搜索、下载、整理、媒体、消息等 Chain | `subscribe.py`、`search.py`、`transfer.py` |
 | `app/modules/` | 可插拔后端：下载器、媒体服务器、元数据源、消息渠道、索引器、存储 | `qbittorrent/`、`emby/`、`telegram/`、`themoviedb/` |
 | `app/db/` | SQLAlchemy 模型（`models/`）与一一对应的数据访问类（`oper/`） | `models/subscribe.py` ↔ `oper/subscribe.py` |
 | `app/schemas/` | Pydantic 传输模型、枚举（`ModuleType`、`EventType`、`SystemConfigKey` 等） | `types.py`、`context.py` |
-| `app/api/` | FastAPI 端点、鉴权依赖、统一响应封装 | `apiv1.py`、`endpoints/`、`response.py` |
+| `app/api/` | FastAPI 主端点、鉴权依赖、统一 `Response` 响应封装；动态插件端点不走此统一包装 | `apiv1.py`、`endpoints/`、`response.py` |
+| `app/adapters/web/plugin/` | FastAPI 动态插件路由的技术适配：注册/移除、认证依赖、OpenAPI 重建；保留插件原生响应结构 | `routes.py` |
 | `app/agent/` | AI Agent：编排器、运行时、工具、中间件、LLM、记忆、技能、策略 | `orchestrator.py`、`runtime_loader.py`、`tools/` |
 | `app/startup/` | 组合根：装配注入、初始化/关停排序、重启策略 | `lifecycle.py`、`modules_initializer.py` |
-| `app/sdk/` | 面向新插件的稳定导入面（网络、缓存、日志、浏览器等） | `network.py`、`browser.py`、`cache.py` |
+| `app/sdk/` | 面向新插件的稳定导入面（网络、缓存、日志、浏览器等）；`_legacy/` 只承载旧插件行为适配薄门面 | `network.py`、`browser.py`、`cache.py`、`_legacy/` |
 | `app/monitor/` | 源目录监控 → 触发整理 | `watcher.py`、`dispatcher.py` |
 | `app/workflow/` | 工作流引擎 | — |
-| `app/plugins/` | 内置插件宿主目录（插件可访问 `app.core/helper/utils` 旧路径） | — |
+| `app/plugins/` | 插件运行时副本/覆盖目录，由插件管理器加载；不是官方插件源码或宿主架构实现，架构审计以插件仓库与宿主边界为准 | — |
 
 ---
 
@@ -327,7 +342,9 @@ flowchart LR
 ```
 
 - Oper 只接收和返回持久化值；`MediaInfo` / `MetaBase` 与数据库行之间的转换属于业务逻辑，
-  归 `app/application/`（见 `application/subscribe.py`、`application/history.py`）。
+  归 `app/application/`（见 `application/subscription/write.py`、`application/history.py`）。
+  订阅新增、查询、变更、删除、身份和搜索契约已经统一收口在 `application/subscription/`，
+  不再保留主题包之外的第二个写入入口。
 - 每次表结构变更必须新增 `database/versions/` 下的 Alembic 迁移。
 - 运行期业务配置使用 `SystemConfigKey` 枚举 + `SystemConfigOper`，禁止裸字符串键；
   用户级配置使用 `UserConfigOper`。
@@ -370,7 +387,7 @@ sequenceDiagram
 
 ```mermaid
 flowchart TB
-    A["用户创建订阅<br/>API / 消息 / Agent"] --> B["SubscribeChain<br/>写入订阅（application/subscribe → SubscribeOper）"]
+    A["用户创建订阅<br/>API / 消息 / Agent"] --> B["SubscribeChain<br/>写入订阅（application/subscription/write.py）"]
     B --> C{"调度器周期触发<br/>SubscribeChain.process"}
     C --> D["搜索缺失集数<br/>（复用搜索流程）"]
     D --> E{"命中资源？"}
@@ -445,8 +462,10 @@ flowchart TB
 
 - Chain 访问 Agent 运行时只能经 `app/application/agent.py`；
   `app/chain/agent.py` 的 `AgentChain` 是链层入口，Agent 实现保持在 `app/agent/`。
-- Agent 工具不直接 import API / 调度器 / 命令，统一使用
-  `application/plugins.py`、`application/scheduling.py`、`application/commands.py` 三个门面。
+- Agent 工具不直接 import API / 调度器 / 命令：插件动态路由与文件夹操作使用
+  `application/plugin/routes.py`、`application/plugin/folders.py`，调度和命令分别使用
+  `application/scheduling.py`、`application/commands.py`。FastAPI 具体实现位于
+  `adapters/web/plugin/`，入口层不承载路由实现。
 - 对外暴露 MCP 端点 `/api/v1/mcp` 与 OpenAI / Anthropic 兼容端点，
   错误响应在 `app/factory.py` 中按协议原生格式单独处理（不走统一 `Response` 包装）。
 
@@ -457,12 +476,12 @@ flowchart TB
 ```mermaid
 flowchart TB
     subgraph 插件侧
-        P["app/plugins/*<br/>（含第三方插件）"]
+        P["app/plugins/*<br/>（运行时副本/覆盖层）"]
     end
 
     subgraph 宿主边界
         SDK["app/sdk<br/>新插件稳定导入面<br/>network / cache / logging / browser ..."]
-        Compat["app/runtime/compat<br/>精确旧路径映射 manifest<br/>app.core / app.helper / app.utils / app.log"]
+        Compat["app/runtime/compat<br/>manifest 精确模块/符号映射<br/>app.core / app.helper / app.utils / app.log 及已删除旧路径"]
         PM["PluginManager<br/>发现 / 生命周期 / 事件桥接"]
     end
 
@@ -474,16 +493,25 @@ flowchart TB
     P -->|旧插件（DEBUG 下告警）| Compat
     SDK -->|门面转发| Canonical
     Compat -.惰性解析.-> SDK
+    Compat -.惰性解析.-> Canonical
     PM -->|run_plugin 方法分发 / 事件广播| P
     Canonical -.-|禁止 import| Compat
     Canonical -.-|禁止 import| SDK
 ```
 
-- 宿主代码只使用 canonical 路径；只有 `app/plugins/` 与兼容性测试可用旧路径。
+- `app/plugins/` 是运行时插件副本，不是官方插件仓库的源码副本；它不纳入宿主架构拆分的源代码审计。
+  宿主代码只使用 canonical 路径；只有运行时插件与兼容性测试可用旧路径。
 - `compat` 只存字符串映射并惰性解析，不得在模块导入期急切 import canonical 实现；
   canonical 包也不得为兼容而反向 import `compat` / `sdk`。
-- 插件 API 的动态注册/移除经 `app/application/plugins.py` 完成，
-  FastAPI 实例由组合根（`app/factory.py`）在创建后注入，端点层禁止直接依赖 `factory`。
+- 插件 API 的动态注册/移除及端口协议统一位于 `app/application/plugin/routes.py`，
+  FastAPI 技术实现位于
+  `app/adapters/web/plugin/routes.py`；FastAPI 实例由组合根（`app/factory.py`）在创建后注入，
+  端点层禁止直接依赖 `factory`。
+- 动态插件路由使用原生 `APIRoute`，插件自行决定返回结构；主程序的统一 `Response` 封装只适用于
+  `app/api/` 的宿主端点。插件若已经自行返回 `Response`、字典、列表或其它可序列化值，宿主不再二次包裹。
+- `app/runtime/extensions/plugin_manager.py` 是保留插件 ABI 的管理器门面，发现、加载、生命周期、
+  目录、同步等实现拆在 `app/runtime/extensions/plugin/`；这个“门面 + 实现包”是有意的兼容边界，
+  不应为了目录整齐而让外部插件改用内部实现文件。
 - 插件可参与 `run_module` 方法分发（同名方法优先响应）并注册事件处理器。
 
 ---
@@ -552,6 +580,29 @@ flowchart LR
   SDK 导出（若公开）、`docs/rules/05-architecture.md` 与上述架构测试。
 - 延迟导入不被接受为隐藏循环依赖的手段。
 
+### 10.1 2026-08-18 收口状态与后续边界
+
+本总览与本轮架构治理的关系如下：
+
+- 已完成的宿主边界：旧 `app.core` / `app.helper` / `app.utils` / `app.log` 根路径通过
+  `app/runtime/compat/manifest.py` 精确映射；订阅、历史、用户认证等旧 Oper 入口通过
+  `app/sdk/_legacy/` 薄门面保留行为兼容。兼容清单是导入路由，不负责合并模块，也不负责把任意
+  新实现重新导出到旧模块。
+- 已完成的插件边界：插件 API 的动态路由由 application 端口 + web adapter 组成，使用原生
+  `APIRoute` 保留插件响应；插件管理器保留 `plugin_manager.py` 的稳定 ABI，内部实现拆在
+  `runtime/extensions/plugin/`；`app/plugins/` 仅作为运行时插件副本/覆盖层处理。
+- 已完成的主题收口：订阅写入归入 `app/application/subscription/write.py`；插件动态路由与
+  文件夹操作归入 `app/application/plugin/routes.py`、`folders.py`。原
+  `app/application/subscribe.py`、`app/application/plugins.py` 未形成插件 ABI，已经直接删除，
+  宿主调用统一改为 canonical 路径。
+- 判断是否需要新增 manifest 映射的标准：只有当旧物理模块被删除、改名或公开符号迁移时才登记；
+  物理文件仍是稳定入口的，不应为了目录规整新增“自己映射自己”的别名，也不应在 canonical 包中
+  保留多余导出。
+
+详细的迁移批次、风险、验证命令和插件兼容矩阵见
+[`docs/refactor/backend-architecture-governance.md`](refactor/backend-architecture-governance.md) 与
+[`docs/refactor/backend-module-refactor-compatibility.md`](refactor/backend-module-refactor-compatibility.md)。
+
 ---
 
 ## 附录：相关文档索引
@@ -566,3 +617,5 @@ flowchart LR
 | [`docs/rules/10-data-and-persistent.md`](rules/10-data-and-persistent.md) | 数据模型、迁移与缓存规范 |
 | [`docs/subscribe-lifecycle.md`](subscribe-lifecycle.md) | 订阅生命周期详解 |
 | [`docs/mcp-api.md`](mcp-api.md) | MCP 工具端点说明 |
+| [`docs/refactor/backend-architecture-governance.md`](refactor/backend-architecture-governance.md) | 分阶段架构治理、边界门禁与迁移验收 |
+| [`docs/refactor/backend-module-refactor-compatibility.md`](refactor/backend-module-refactor-compatibility.md) | 模块迁移与插件兼容层实施矩阵 |
diff --git a/docs/backend-architecture-governance.md b/docs/refactor/backend-architecture-governance.md
similarity index 97%
rename from docs/backend-architecture-governance.md
rename to docs/refactor/backend-architecture-governance.md
index 715c8ae26..a61748a5d 100644
--- a/docs/backend-architecture-governance.md
+++ b/docs/refactor/backend-architecture-governance.md
@@ -3,7 +3,7 @@
 > 文档性质：现状审计、目标约束、迁移路线和 AI 实施手册
 > 适用仓库：`MoviePilot`，分支 `v3`
 > 审计基线：2026-08-18 当前工作树
-> 相关规范：`AGENTS.md`、`docs/rules/05-architecture.md`、`docs/architecture-overview.md`、`docs/backend-module-refactor-compatibility.md`
+> 相关规范：`AGENTS.md`、`docs/rules/05-architecture.md`、`docs/architecture-overview.md`、`docs/refactor/backend-module-refactor-compatibility.md`
 
 ## 1. 文档目的
 
@@ -25,7 +25,8 @@
 3. `PluginManager` 的加载、生命周期、注册表、投影、存储、目录、路径、同步、依赖、克隆和文件监控分别由 `app/runtime/extensions/plugin/` 下的单职责组件承担；旧管理器只保留 V3 ABI 门面和兼容调用顺序。
 4. 动态插件 API 使用专用 raw 路由；主程序统一响应信封不进入插件 `get_api()`。前端 `pluginApi` 对非 `Response` envelope 的 payload 原样交付调用方。
 5. 旧插件导入仅由 `app/runtime/compat/manifest.py` 精确映射；canonical 模块不复制旧 Manager/Helper/Oper 导出。`app/plugins/` 仍是运行时副本，继续排除在宿主架构扫描之外。
-6. 当前机器基线为 746 个宿主 Python 模块、6,021 条内部导入边；数据库边界、Adapter→DB、Runtime→DB、Application→DB 及新增 API/Agent/Chain 目标边均为 0。架构门禁、插件兼容快照和基线脚本均已重新生成。
+6. 当前机器基线为 746 个宿主 Python 模块、6,024 条内部导入边；数据库边界、Adapter→DB、Runtime→DB、Application→DB 及新增 API/Agent/Chain 目标边均为 0。架构门禁、插件兼容快照和基线脚本均已重新生成。
+7. 订阅写入统一归入 `app/application/subscription/write.py`；插件动态路由和文件夹操作统一归入 `app/application/plugin/routes.py`、`folders.py`。重构期间新增且未形成插件 ABI 的 `app/application/subscribe.py`、`app/application/plugins.py` 已直接删除，不进入 compat manifest。
 
 ## 2. 范围与明确排除项
 
@@ -98,7 +99,7 @@ MoviePilot V3 已经完成一轮重要基础工作：原 `app/core`、`app/helpe
 
 ### 4.3 模块规模
 
-排除 `app/plugins/` 后，当前静态扫描得到 746 个 Python 模块、6,021 条内部导入边。主要一级目录规模如下（代码行数包含注释和空行，用于趋势比较而非质量评分）：
+排除 `app/plugins/` 后，当前静态扫描得到 746 个 Python 模块、6,024 条内部导入边。主要一级目录规模如下（代码行数包含注释和空行，用于趋势比较而非质量评分）：
 
 | 一级目录 | 约代码行数 | Python 文件数 | 判断 |
 | --- | ---: | ---: | --- |
@@ -147,7 +148,7 @@ MoviePilot V3 已经完成一轮重要基础工作：原 `app/core`、`app/helpe
 | 指标 | 初始审计 | 当前基线 | 说明 |
 | --- | ---: | ---: | --- |
 | Python 模块数 | 约 654 | 746 | 增量来自单一职责的 Application、Runtime、Adapter、插件组件和维护用例模块 |
-| 内部导入边 | 约 5,623 | 6,021 | 显式端口增加模块数但移除了反向边；边数不作为单独质量目标 |
+| 内部导入边 | 约 5,623 | 6,024 | 显式端口增加模块数但移除了反向边；边数不作为单独质量目标 |
 | SCC 数 | 14 | 1 | 自有代码 SCC 已归零，仅保留 TMDB 移植包内部隔离例外 |
 | `adapters -> db` | 存在 | 0 | `PluginHelper`、`MoviePilotServerHelper` 的本地数据读取已移到组合根/Application |
 | `runtime -> db` | 存在 | 0 | 插件存储、服务配置均改为启动注入 |
@@ -324,25 +325,24 @@ app/chain/__init__.py                 # 保留 ChainBase 兼容门面
 4. 原 Facade 的参数默认值、返回类型、事件时机和消息副作用必须保持。
 5. 不为了缩短文件把相互调用的方法机械分散到多个 `helper.py`。
 
-#### 建议的订阅拆分
+#### 已落地的订阅应用拆分
 
 ```text
-app/domain/subscription/
-  identity.py          # 订阅媒体键、稳定身份和纯比较
-  matching.py          # 不访问 DB/网络的匹配规则
-  completion.py        # 完整性与完成判定
-
 app/application/subscription/
-  commands.py          # 新增、修改、删除、完成
-  queries.py           # 可见性和订阅读取
-  recognition.py       # 通过端口恢复媒体信息
-  search.py            # 搜索用例协调
-  ports.py             # Repository、Search、Recognition、Event 等协议
+  write.py             # 新增订阅、媒体翻译和写入端口
+  query.py             # 存在性、来源定位和公开查询
+  mutation.py          # 更新、重置和历史删除
+  delete.py            # 单条删除与事务端口
+  identity.py          # 按媒体身份批量删除
+  search.py            # 手工搜索调度
+  contract.py          # Chain 共用的媒体元数据与媒体键契约
 
 app/chain/subscribe.py # V3 Facade，继续暴露 SubscribeChain 与旧辅助符号
 ```
 
-`app/application/subscribe.py` 已经承担订阅写入翻译，可先作为新目录的入口门面，或保留并转发到新服务。不能同时出现同名文件和包；若最终改为包，必须在一个原子批次中完成，并验证 `app.application.subscribe` 的所有导入。
+`app/application/subscribe.py` 是 V3 重构期间新增的内部过渡文件，插件仓与运行时插件均无导入；
+在宿主、测试和旧 `app.db.subscribe_oper` 行为适配切换到 `subscription/write.py` 后直接删除，
+不保留门面，也不在 `manifest.py` 中新增没有历史消费者的映射。
 
 #### 建议的整理拆分
 
@@ -541,7 +541,7 @@ app/domain/events/                   # 逐步增加 Typed payload，不承载总
 
 #### 动态插件 API 的 P0 兼容冲突
 
-这是治理前发现并已完成的 P0 兼容修复。主应用仍使用 `ResponseAPIRoute`，但 `app/adapters/web/plugin/routes.py` 在动态插件注册时显式使用原生 `APIRoute`；`app/application/plugin/routes.py` 只定义 `DynamicRouteRegistry` 端口。因此插件 `get_api()` 返回的 dict、Pydantic model、原生 `Response`、文件/流响应和自定义状态码均不进入主 API envelope。前端 `pluginApi` 也只在检测到严格 `Response` envelope 时解包，否则原样交付。
+这是治理前发现并已完成的 P0 兼容修复。主应用仍使用 `ResponseAPIRoute`，但 `app/adapters/web/plugin/routes.py` 在动态插件注册时显式使用原生 `APIRoute`；`app/application/plugin/routes.py` 定义 `DynamicRouteRegistry` 端口并承载注册/移除用例，不依赖 FastAPI。因此插件 `get_api()` 返回的 dict、Pydantic model、原生 `Response`、文件/流响应和自定义状态码均不进入主 API envelope。前端 `pluginApi` 也只在检测到严格 `Response` envelope 时解包，否则原样交付。
 
 真实运行验证已覆盖：官方 V3 `TvdbDiscover` 插件加载后生成 `/api/v1/plugin/TvdbDiscover/tvdb_discover` 动态路由，未认证请求返回插件路由自己的认证错误体而非主 API 404/统一路由包装；对应 route class、raw 响应和前端 pass-through 均有测试。
 
@@ -578,7 +578,8 @@ app/runtime/extensions/plugin/projection.py    # commands/apis/services/modules/
 app/runtime/extensions/plugin/storage.py       # 运行时持久化窄端口
 app/application/plugin/catalog.py              # 市场目录查询、代际合并和来源去重
 app/application/plugin/install.py              # 安装用例与阶段结果
-app/application/plugin/routes.py               # 动态 API 注册端口
+app/application/plugin/routes.py               # 动态 API 注册端口与用例
+app/application/plugin/folders.py              # 插件文件夹清理用例
 ```
 
 #### 插件钩子契约
@@ -701,7 +702,7 @@ app/application/server/share.py                # 订阅/工作流等分享用例
 #### 典型证据
 
 - `app/application/messaging/skill.py` 通过 `SkillCatalogPort` 消费技能目录，`app.startup.agent_initializer` 才导入并注入 `SkillHelper`。
-- `app/application/plugins.py` 只持有 `DynamicRouteRegistry` Protocol；FastAPI app、`app.routes`、`openapi_schema` 和 `setup()` 均封装在 `app/adapters/web/plugin/routes.py`。
+- `app/application/plugin/routes.py` 持有 `DynamicRouteRegistry` Protocol 和注册/移除用例；FastAPI app、`app.routes`、`openapi_schema` 和 `setup()` 均封装在 `app/adapters/web/plugin/routes.py`。
 - 多个 `modules` 直接导入 `app.application.messaging.agent`、`mediaserver`、`storage` 等；其中一部分是合理 SPI 消费，一部分表明应用能力接口和具体实现未区分。
 - `SystemConfigOper()` 在大量文件中被直接构造，形成持久化配置服务定位器。
 
@@ -1120,7 +1121,8 @@ startup 注入具体依赖
 | 插件配置和数据持久化 | `app/runtime/extensions/plugin/storage.py` | 启动层用 `SystemConfigOper`、`PluginDataOper` 注入；Runtime 不导入 Oper |
 | 市场目录和版本/来源合并 | `app/application/plugin/catalog.py` | `PluginManager.get_online_plugins()` 等公开方法经启动注入的目录工厂委托 |
 | 插件安装阶段编排 | `app/application/plugin/install.py` | API 和 Agent 共用命令；旧管理器/Helper 安装入口保留 |
-| 动态插件路由 | `app/application/plugin/routes.py` + `app/adapters/web/plugin/routes.py` | `app/application/plugins.py` 保留旧 Facade；插件响应默认 raw |
+| 动态插件路由 | `app/application/plugin/routes.py` + `app/adapters/web/plugin/routes.py` | 过渡聚合文件无插件 ABI，已删除；插件响应默认 raw |
+| 插件文件夹清理 | `app/application/plugin/folders.py` | API 与 Agent 直接调用 canonical 用例，兼容新旧配置存储形态 |
 | 市场读取 | `app/adapters/external/plugin/client.py` | `app.adapters.external.market.PluginHelper` 保留正式公共实现路径 |
 | 包与依赖安装 | `app/adapters/system/plugin/package.py`、`dependency.py` | PluginManager 原方法只做委托和日志/上报 |
 | 中心服务统计/分享 | `app/application/server/report.py`、`share.py` | `MoviePilotServerHelper` 保留 transport 和公开静态/类方法，由启动层注入用例 |
@@ -1196,7 +1198,7 @@ startup 注入具体依赖
 
 ### 任务 A：插件动态 API raw 契约
 
-**范围**：`app/application/plugins.py`、`app/api/response.py`、`app/factory.py`、对应测试。
+**范围**：`app/application/plugin/routes.py`、`app/adapters/web/plugin/routes.py`、`app/api/response.py`、`app/factory.py`、对应测试。
 **目标**：主 API 统一信封，插件动态 API 默认自由返回。
 **禁止**：修改插件副本、修改普通 API 响应格式、修改鉴权默认值。
 **验证**：dict、Pydantic model、Response、StreamingResponse、204、自定义状态码、OpenAPI。
@@ -1359,7 +1361,7 @@ done_when: []
 | 范围 | 命令 | 结果 |
 | --- | --- | --- |
 | 后端完整门禁 | `./.venv/bin/python tests/run.py` | 4,914 passed、2 failed、3 skipped（2026-08-18）；失败为未修改的 Agent 图片能力测试，架构专项不受影响 |
-| 架构与插件快照 | `./.venv/bin/python scripts/architecture/baseline.py --check --plugin-repo ../MoviePilot-Plugins` | 已通过，基线已更新为 746 模块 / 6,021 边 |
+| 架构与插件快照 | `./.venv/bin/python scripts/architecture/baseline.py --check --plugin-repo ../MoviePilot-Plugins` | 已通过，基线已更新为 746 模块 / 6,024 边 |
 | 前端联邦 API 客户端 | `yarn test:run src/api/__tests__/client.spec.ts src/api/__tests__/index.spec.ts` | 36 passed |
 | 前端类型检查 | `yarn typecheck` | 通过 |
 | V3 插件契约与版本门禁 | `../MoviePilot/.venv/bin/python -m pytest tests/ci/test_v3_contract.py tests/ci/test_plugin_release_gate.py -q` | 16 passed |
diff --git a/docs/backend-module-refactor-compatibility.md b/docs/refactor/backend-module-refactor-compatibility.md
similarity index 100%
rename from docs/backend-module-refactor-compatibility.md
rename to docs/refactor/backend-module-refactor-compatibility.md
diff --git a/docs/rules/05-architecture.md b/docs/rules/05-architecture.md
index 6993f843d..d88ade9b8 100644
--- a/docs/rules/05-architecture.md
+++ b/docs/rules/05-architecture.md
@@ -61,12 +61,12 @@ to make the directory tree look symmetrical.
 | Path | Ownership |
 |---|---|
 | `app/application/*.py` | Established single-module application services and compatibility facades |
-| `app/application/subscription/` | Subscription contracts and write commands: `contract.py` owns shared metadata/media-key projection; `delete.py` and `identity.py` own deletion use cases |
+| `app/application/subscription/` | Subscription use cases: `write.py` owns media-to-row translation and the write port; `contract.py` owns shared metadata/media-key projection; query, mutation, deletion, identity and search stay in their single-word modules |
 | `app/application/search/` | Search state and later search-plan use cases |
 | `app/application/download/` | Download task querying/control and later submission use cases |
 | `app/application/music/` | Multi-source music catalog orchestration |
 | `app/application/chain/` | Injectable Chain runtime context and compatibility provider |
-| `app/application/plugin/` | Plugin market catalog, installation command and dynamic-route port; filenames remain single words (`catalog.py`, `install.py`, `routes.py`) |
+| `app/application/plugin/` | Plugin market catalog, installation command, runtime port, folder operations and dynamic-route use cases; filenames remain single words (`catalog.py`, `install.py`, `runtime.py`, `folders.py`, `routes.py`) |
 | `app/application/server/` | MoviePilot Server reporting and sharing use cases; local data readers and transport callbacks are injected by startup |
 | `app/application/site/` | Configured site catalog, authentication level and index-resource capability; the generated extension and its data bundle stay together here |
 | `app/application/messaging/` | Message rendering/routing, interactions and the Agent-to-message bridge: `interaction.py` shared interaction contracts and view helpers; `router.py` unified interaction priority and callback dispatch; `site.py`/`subscribe.py`/`skill.py` per-command sessions, input parsing and views; `media.py` media interaction state while the business workflow stays in `MediaInteractionChain`; `plugin.py` plugin input capture and plugin button callbacks; `agent.py` agent choice state, callback protocol and WebAgent bridge; `message.py` notification rendering, templates and queue. Not a public SDK recommended for direct plugin use |
@@ -345,7 +345,7 @@ requires an Alembic migration under `database/versions/`.
 
 Oper classes take and return persistence values, not domain objects. Translating
 `MediaInfo` / `MetaBase` into a row is business logic and belongs in
-`app/application/` — see `application/subscribe.py` and `application/history.py`
+`app/application/` — see `application/subscription/write.py` and `application/history.py`
 for the two write paths. Column-type coercion (numeric year to string, boolean
 switches to integers) stays in the Oper because it follows the column, not the
 caller.
@@ -396,8 +396,8 @@ policy. `app/db` therefore has no dependency on `app/domain`.
 | `entrypoint -> chain / application / Oper` | Allowed according to workflow complexity |
 | `chain -> module (only via run_module dispatch) / application / Oper / canonical capability` | Allowed; direct `chain -> module` imports forbidden |
 | `chain -> agent implementation` | Forbidden; chains reach Agent runtime only through `app/application/agent.py`; `app/startup/agent_initializer.py` registers lightweight providers at import time, and implementations are materialized only when the capability is enabled or first used |
-| `agent.tools -> api / scheduler / command` | Forbidden; tools use `app/application/plugins.py`, `scheduling.py` and `commands.py` facades |
-| `api -> factory` | Forbidden; the FastAPI instance is injected into `app/application/plugins.py` by the composition root after creation |
+| `agent.tools -> api / scheduler / command` | Forbidden; tools use `app/application/plugin/routes.py`, `plugin/folders.py`, `scheduling.py` and `commands.py` application services |
+| `api -> factory` | Forbidden; the FastAPI route adapter is injected into `app/application/plugin/routes.py` by the composition root after creation |
 | `application -> domain / runtime / adapter / Oper` | Allowed |
 | `module -> canonical capability / Oper` | Allowed |
 | `module -> module / chain` | Forbidden for new code |
@@ -414,7 +414,7 @@ policy. `app/db` therefore has no dependency on `app/domain`.
 |---|---|
 | `app/application/agent.py` | Agent orchestration facade (`get_agent_manager` / `get_prompt_manager` / capability queries / prompt builders); lightweight providers register through `app/startup/agent_initializer.py`, with no static `application -> agent` edge |
 | `app/agent/runtime_loader.py` | Agent-specific capability discovery and canonical entrypoint/service materialization; reuses the generic Capability Runtime while keeping Agent ownership under `app/agent/` |
-| `app/application/plugins.py` | Plugin API dynamic route registration/removal; the FastAPI instance is injected by `app/factory.py` after creation |
+| `app/application/subscription/write.py` | Subscription media translation and sync/async write-port orchestration |
 | `app/application/scheduling.py` | Runtime scheduler facade for Agent tools and endpoints; `Scheduler` class registered by `app/startup/scheduler_initializer.py` |
 | `app/application/commands.py` | Command registry facade for Agent tools and endpoints; `Command` class registered by `app/startup/command_initializer.py` |
 | `app/chain/agent.py` | `AgentChain(ChainBase)`: the chain-layer entry for Agent sessions; Agent runtime stays in `app/agent/` |
@@ -435,7 +435,8 @@ policy. `app/db` therefore has no dependency on `app/domain`.
 | `app/runtime/extensions/plugin/storage.py` | Injected plugin configuration/data persistence port; runtime code does not import DB Oper classes |
 | `app/application/plugin/catalog.py` | Plugin-market mapping, concurrent collection, generation merge and source/version deduplication |
 | `app/application/plugin/install.py` | Compatibility, package installation, reporting, installed-list persistence and runtime reload command |
-| `app/application/plugin/routes.py` | Dynamic plugin-route registry protocol; plugin response payloads remain raw unless the plugin chooses its own envelope |
+| `app/application/plugin/routes.py` | Dynamic plugin-route registry protocol and registration/removal use cases; plugin response payloads remain raw unless the plugin chooses its own envelope |
+| `app/application/plugin/folders.py` | Plugin-folder cleanup use case, compatible with current dictionary and legacy list storage shapes |
 | `app/application/plugin/runtime.py` | Plugin runtime port consumed by API, Agent and Workflow; the concrete `PluginManager` is registered only by startup |
 | `app/application/module.py` | Host module runtime port consumed by entrypoints; the concrete `ModuleManager` is registered only by startup |
 | `app/application/scheduling.py` | Scheduler runtime port consumed by API/Agent/application commands |
diff --git a/tests/fixtures/architecture/dependency-baseline.json b/tests/fixtures/architecture/dependency-baseline.json
index 0f7721593..1cf874d0a 100644
--- a/tests/fixtures/architecture/dependency-baseline.json
+++ b/tests/fixtures/architecture/dependency-baseline.json
@@ -13,8 +13,8 @@
     "runtime_to_db": [],
     "workflow_to_db": []
   },
-  "edge_count": 6021,
-  "edge_sha256": "1dbba158e94cf7f54d596c35d7cf026700273643fcc86b1e6b0adc4150323027",
+  "edge_count": 6024,
+  "edge_sha256": "c0e243d720b7edbd3b842d8f9afd4ae5c7e0be6c8c745601986d2c938e4f23d8",
   "edges": [
     "app -> app.runtime",
     "app -> app.runtime.compat",
@@ -525,9 +525,10 @@
     "app.agent.tools.impl._plugin_tool_utils -> app.application.commands",
     "app.agent.tools.impl._plugin_tool_utils -> app.application.configuration",
     "app.agent.tools.impl._plugin_tool_utils -> app.application.plugin",
+    "app.agent.tools.impl._plugin_tool_utils -> app.application.plugin.folders",
     "app.agent.tools.impl._plugin_tool_utils -> app.application.plugin.install",
+    "app.agent.tools.impl._plugin_tool_utils -> app.application.plugin.routes",
     "app.agent.tools.impl._plugin_tool_utils -> app.application.plugin.runtime",
-    "app.agent.tools.impl._plugin_tool_utils -> app.application.plugins",
     "app.agent.tools.impl._plugin_tool_utils -> app.application.scheduling",
     "app.agent.tools.impl._plugin_tool_utils -> app.runtime",
     "app.agent.tools.impl._plugin_tool_utils -> app.runtime.config",
@@ -1480,8 +1481,8 @@
     "app.api.deps -> app.application.messaging.message",
     "app.api.deps -> app.application.plugin",
     "app.api.deps -> app.application.plugin.config",
+    "app.api.deps -> app.application.plugin.routes",
     "app.api.deps -> app.application.plugin.runtime",
-    "app.api.deps -> app.application.plugins",
     "app.api.deps -> app.application.scheduling",
     "app.api.deps -> app.application.security",
     "app.api.deps -> app.application.security.auth",
@@ -1917,9 +1918,10 @@
     "app.api.endpoints.plugin -> app.application.configuration",
     "app.api.endpoints.plugin -> app.application.plugin",
     "app.api.endpoints.plugin -> app.application.plugin.config",
+    "app.api.endpoints.plugin -> app.application.plugin.folders",
     "app.api.endpoints.plugin -> app.application.plugin.install",
+    "app.api.endpoints.plugin -> app.application.plugin.routes",
     "app.api.endpoints.plugin -> app.application.plugin.runtime",
-    "app.api.endpoints.plugin -> app.application.plugins",
     "app.api.endpoints.plugin -> app.application.scheduling",
     "app.api.endpoints.plugin -> app.runtime",
     "app.api.endpoints.plugin -> app.runtime.cache",
@@ -2456,14 +2458,12 @@
     "app.application.notification -> app.schemas",
     "app.application.notification -> app.schemas.system",
     "app.application.notification -> app.schemas.types",
-    "app.application.plugins -> app.application",
-    "app.application.plugins -> app.application.configuration",
-    "app.application.plugins -> app.application.plugin",
-    "app.application.plugins -> app.application.plugin.routes",
-    "app.application.plugins -> app.runtime",
-    "app.application.plugins -> app.runtime.log",
-    "app.application.plugins -> app.schemas",
-    "app.application.plugins -> app.schemas.types",
+    "app.application.plugin.folders -> app.application",
+    "app.application.plugin.folders -> app.application.configuration",
+    "app.application.plugin.folders -> app.runtime",
+    "app.application.plugin.folders -> app.runtime.log",
+    "app.application.plugin.folders -> app.schemas",
+    "app.application.plugin.folders -> app.schemas.types",
     "app.application.recognition -> app.application",
     "app.application.recognition -> app.application.configuration",
     "app.application.recognition -> app.schemas",
@@ -2555,11 +2555,6 @@
     "app.application.storage -> app.schemas",
     "app.application.storage -> app.schemas.system",
     "app.application.storage -> app.schemas.types",
-    "app.application.subscribe -> app.domain",
-    "app.application.subscribe -> app.domain.context",
-    "app.application.subscribe -> app.schemas",
-    "app.application.subscribe -> app.schemas.media",
-    "app.application.subscribe -> app.schemas.types",
     "app.application.subscription.contract -> app.domain",
     "app.application.subscription.contract -> app.domain.meta",
     "app.application.subscription.contract -> app.domain.meta.metabase",
@@ -2584,6 +2579,11 @@
     "app.application.subscription.search -> app.application",
     "app.application.subscription.search -> app.application.subscription",
     "app.application.subscription.search -> app.application.subscription.delete",
+    "app.application.subscription.write -> app.domain",
+    "app.application.subscription.write -> app.domain.context",
+    "app.application.subscription.write -> app.schemas",
+    "app.application.subscription.write -> app.schemas.media",
+    "app.application.subscription.write -> app.schemas.types",
     "app.application.torrent -> app.adapters",
     "app.application.torrent -> app.adapters.network",
     "app.application.torrent -> app.adapters.network.http",
@@ -3058,10 +3058,10 @@
     "app.chain.subscribe -> app.application.mediaserver",
     "app.chain.subscribe -> app.application.messaging",
     "app.chain.subscribe -> app.application.messaging.subscribe",
-    "app.chain.subscribe -> app.application.subscribe",
     "app.chain.subscribe -> app.application.subscription",
     "app.chain.subscribe -> app.application.subscription.contract",
     "app.chain.subscribe -> app.application.subscription.query",
+    "app.chain.subscribe -> app.application.subscription.write",
     "app.chain.subscribe -> app.application.torrent",
     "app.chain.subscribe -> app.chain",
     "app.chain.subscribe -> app.chain._interaction",
@@ -3588,7 +3588,8 @@
     "app.factory -> app.api",
     "app.factory -> app.api.response",
     "app.factory -> app.application",
-    "app.factory -> app.application.plugins",
+    "app.factory -> app.application.plugin",
+    "app.factory -> app.application.plugin.routes",
     "app.factory -> app.application.security",
     "app.factory -> app.application.security.token",
     "app.factory -> app.runtime",
@@ -5520,7 +5521,8 @@
     "app.sdk._legacy.history -> app.schemas.file",
     "app.sdk._legacy.history -> app.schemas.transfer",
     "app.sdk._legacy.subscribe -> app.application",
-    "app.sdk._legacy.subscribe -> app.application.subscribe",
+    "app.sdk._legacy.subscribe -> app.application.subscription",
+    "app.sdk._legacy.subscribe -> app.application.subscription.write",
     "app.sdk._legacy.subscribe -> app.db",
     "app.sdk._legacy.subscribe -> app.db.models",
     "app.sdk._legacy.subscribe -> app.db.models.subscribe",
@@ -5756,7 +5758,8 @@
     "app.startup.modules_initializer -> app.application.site",
     "app.startup.modules_initializer -> app.application.site.health",
     "app.startup.modules_initializer -> app.application.site.query",
-    "app.startup.modules_initializer -> app.application.subscribe",
+    "app.startup.modules_initializer -> app.application.subscription",
+    "app.startup.modules_initializer -> app.application.subscription.write",
     "app.startup.modules_initializer -> app.application.workflow",
     "app.startup.modules_initializer -> app.chain",
     "app.startup.modules_initializer -> app.chain.download",
@@ -6302,10 +6305,10 @@
     "app.application.plugin",
     "app.application.plugin.catalog",
     "app.application.plugin.config",
+    "app.application.plugin.folders",
     "app.application.plugin.install",
     "app.application.plugin.routes",
     "app.application.plugin.runtime",
-    "app.application.plugins",
     "app.application.recognition",
     "app.application.rss",
     "app.application.rules",
@@ -6333,7 +6336,6 @@
     "app.application.site.mutation",
     "app.application.site.query",
     "app.application.storage",
-    "app.application.subscribe",
     "app.application.subscription",
     "app.application.subscription.contract",
     "app.application.subscription.delete",
@@ -6341,6 +6343,7 @@
     "app.application.subscription.mutation",
     "app.application.subscription.query",
     "app.application.subscription.search",
+    "app.application.subscription.write",
     "app.application.torrent",
     "app.application.transfer",
     "app.application.workflow",
diff --git a/tests/fixtures/architecture/official-plugin-baseline.json b/tests/fixtures/architecture/official-plugin-baseline.json
index d62576c47..7da6dd43b 100644
--- a/tests/fixtures/architecture/official-plugin-baseline.json
+++ b/tests/fixtures/architecture/official-plugin-baseline.json
@@ -3348,10 +3348,11 @@
       ]
     },
     "app.agent.llm": {
-      "file_count": 2,
+      "file_count": 3,
       "files": [
         "plugins.v2/airecognizerenhancer/__init__.py",
-        "plugins.v2/chatgpt/openai.py"
+        "plugins.v2/chatgpt/openai.py",
+        "plugins.v2/qbuploadlimiter/__init__.py"
       ]
     },
     "app.agent.llm.helper": {
@@ -3729,11 +3730,12 @@
       ]
     },
     "app.db": {
-      "file_count": 5,
+      "file_count": 6,
       "files": [
         "plugins.v2/dailysummary/__init__.py",
         "plugins.v2/historytov2/__init__.py",
         "plugins.v2/promotiontag/__init__.py",
+        "plugins.v2/qbuploadlimiter/__init__.py",
         "plugins.v3/bangumicoll/__init__.py",
         "plugins.v3/historytov2/__init__.py"
       ]
@@ -3771,9 +3773,10 @@
       ]
     },
     "app.db.models.siteuserdata": {
-      "file_count": 2,
+      "file_count": 3,
       "files": [
         "plugins.v2/dailysummary/__init__.py",
+        "plugins.v2/qbuploadlimiter/__init__.py",
         "plugins.v2/sitestatistic/__init__.py"
       ]
     },
@@ -3783,6 +3786,12 @@
         "plugins.v3/bangumicoll/__init__.py"
       ]
     },
+    "app.db.models.transferhistory": {
+      "file_count": 1,
+      "files": [
+        "plugins.v2/qbuploadlimiter/__init__.py"
+      ]
+    },
     "app.db.models.user": {
       "file_count": 1,
       "files": [
@@ -3934,9 +3943,10 @@
       ]
     },
     "app.helper.llm": {
-      "file_count": 1,
+      "file_count": 2,
       "files": [
-        "plugins.v2/airecognizerenhancer/__init__.py"
+        "plugins.v2/airecognizerenhancer/__init__.py",
+        "plugins.v2/qbuploadlimiter/__init__.py"
       ]
     },
     "app.helper.mediaserver": {
@@ -4831,13 +4841,13 @@
   },
   "schema_version": 2,
   "source": {
-    "head": "aa107b44a49bcaaa9f87d078fbf88da1971f722c",
+    "head": "ddb41dbcbbea21196154a7f6d5fdba3aa34a5e4a",
     "python_file_count": 231,
     "repository": "MoviePilot-Plugins",
     "roots": [
       "plugins.v2",
       "plugins.v3"
     ],
-    "source_sha256": "cb69dda1fe0547e85a36c99ebcc31e9f3de62d035d548b4a33875626a24b7197"
+    "source_sha256": "63663538bd7f5b7c6a9f318ab58ad35d8c5ab68bd7d798d07a5dcdf600f062ad"
   }
 }
diff --git a/tests/fixtures/architecture/runtime-contract-baseline.json b/tests/fixtures/architecture/runtime-contract-baseline.json
index c1492d364..1c3b2ee20 100644
--- a/tests/fixtures/architecture/runtime-contract-baseline.json
+++ b/tests/fixtures/architecture/runtime-contract-baseline.json
@@ -222,7 +222,7 @@
         "introduced": "v3.0.0",
         "is_package": false,
         "owner": "sdk",
-        "replacement": "app.application.subscribe.add_subscribe",
+        "replacement": "app.application.subscription.write.add_subscribe",
         "target": "app.sdk._legacy.subscribe"
       },
       "app.db.subscribehistory_oper": {
diff --git a/tests/test_api_response.py b/tests/test_api_response.py
index 66c25d867..f503ce5a0 100644
--- a/tests/test_api_response.py
+++ b/tests/test_api_response.py
@@ -688,7 +688,7 @@ def test_openapi_success_models_have_no_implicit_empty_nested_schemas():
 
 def test_plugin_routes_only_register_v1(monkeypatch):
     """插件动态路由只注册 v1 地址，并显式绕过主程序响应路由。"""
-    from app.application import plugins
+    from app.application.plugin import routes as plugin_routes
 
     class FakeApp:
         """记录动态注册路径的应用桩。"""
@@ -723,7 +723,7 @@ def test_plugin_routes_only_register_v1(monkeypatch):
 
     fake_app = FakeApp()
     plugin_manager = FakePluginManager()
-    plugins.configure_plugin_routes(FastAPIDynamicRouteRegistry(
+    plugin_routes.configure_plugin_routes(FastAPIDynamicRouteRegistry(
         app=fake_app,
         plugin_ids=lambda: ["DemoPlugin"],
         plugin_apis=plugin_manager.get_plugin_apis,
@@ -734,13 +734,13 @@ def test_plugin_routes_only_register_v1(monkeypatch):
         log=SimpleNamespace(debug=lambda *_args: None, error=lambda *_args: None),
     ))
 
-    plugins._update_plugin_api_routes("DemoPlugin", action="add")
+    plugin_routes.register_plugin_api("DemoPlugin")
     assert [route.path for route in fake_app.routes] == [
         "/api/v1/plugin/DemoPlugin/health"
     ]
     assert fake_app.route_options[0]["route_class_override"] is APIRoute
 
-    plugins._update_plugin_api_routes("DemoPlugin", action="remove")
+    plugin_routes.remove_plugin_api("DemoPlugin")
     assert fake_app.routes == []
 
 
@@ -774,7 +774,7 @@ def test_dynamic_host_route_without_annotation_uses_recursive_json_model():
 
 def build_plugin_api_app(monkeypatch) -> FastAPI:
     """构造覆盖插件自由返回类型的动态路由测试应用。"""
-    from app.application import plugins
+    from app.application.plugin import routes as plugin_routes
 
     class PluginPayload(BaseModel):
         """插件自行声明的响应模型。"""
@@ -851,7 +851,7 @@ def build_plugin_api_app(monkeypatch) -> FastAPI:
     app = FastAPI()
     app.router.route_class = ResponseAPIRoute
     plugin_manager = FakePluginManager()
-    plugins.configure_plugin_routes(FastAPIDynamicRouteRegistry(
+    plugin_routes.configure_plugin_routes(FastAPIDynamicRouteRegistry(
         app=app,
         plugin_ids=lambda: ["DemoPlugin"],
         plugin_apis=plugin_manager.get_plugin_apis,
@@ -861,7 +861,7 @@ def build_plugin_api_app(monkeypatch) -> FastAPI:
         protected_routes=set(),
         log=SimpleNamespace(debug=lambda *_args: None, error=lambda *_args: None),
     ))
-    plugins._update_plugin_api_routes("DemoPlugin", action="add")
+    plugin_routes.register_plugin_api("DemoPlugin")
     return app
 
 
diff --git a/tests/test_architecture_dependencies.py b/tests/test_architecture_dependencies.py
index eeac28818..1b448ae29 100644
--- a/tests/test_architecture_dependencies.py
+++ b/tests/test_architecture_dependencies.py
@@ -62,6 +62,8 @@ RETIRED_CANONICAL_FILES = (
     "app/runtime/runtime.py",
     "app/adapters/network/rss.py",
     "app/adapters/network/sites.pyi",
+    "app/application/plugins.py",
+    "app/application/subscribe.py",
 )
 PLUGIN_COMPONENT_ROOTS = (
     "app/adapters/external/plugin",
diff --git a/tests/test_music_subscribe.py b/tests/test_music_subscribe.py
index f7d08eca7..c45a63bdf 100644
--- a/tests/test_music_subscribe.py
+++ b/tests/test_music_subscribe.py
@@ -702,7 +702,7 @@ def test_subscribe_add_music_uses_explicit_entity_recognize():
     media_chain = Mock()
     media_chain.recognize_media = Mock(return_value=target)
     subscribe_oper = Mock()
-    # 落库入口已迁到 app/application/subscribe.py，链路层能截到的接缝是 add_subscribe，
+    # 落库入口已迁到 application/subscription/write.py，链路层能截到的接缝是 add_subscribe，
     # 它收到的正是链路交给写入路径的那份字段
     add_subscribe = Mock(return_value=(1, ""))
 
diff --git a/tests/test_plugin_folders.py b/tests/test_plugin_folders.py
new file mode 100644
index 000000000..cfe2017e3
--- /dev/null
+++ b/tests/test_plugin_folders.py
@@ -0,0 +1,48 @@
+from unittest.mock import MagicMock
+
+from app.application.plugin import folders
+from app.schemas.types import SystemConfigKey
+
+
+def test_remove_plugin_from_folders_updates_current_and_legacy_shapes(monkeypatch):
+    """卸载插件时应同时清理字典格式和旧列表格式的文件夹引用。"""
+    stored = {
+        "常用": {"plugins": ["DemoPlugin", "OtherPlugin"], "order": 1},
+        "旧目录": ["DemoPlugin", "ThirdPlugin"],
+    }
+    config = MagicMock()
+    config.get.return_value = stored
+    monkeypatch.setattr(folders, "get_configured_system_config", lambda: config)
+
+    folders.remove_plugin_from_folders("DemoPlugin")
+
+    assert stored["常用"]["plugins"] == ["OtherPlugin"]
+    assert stored["旧目录"] == ["ThirdPlugin"]
+    config.get.assert_called_once_with(SystemConfigKey.PluginFolders)
+    config.set.assert_called_once_with(SystemConfigKey.PluginFolders, stored)
+
+
+def test_remove_plugin_from_folders_skips_write_when_plugin_is_absent(monkeypatch):
+    """插件不在任何文件夹时不得产生无意义配置写入。"""
+    config = MagicMock()
+    config.get.return_value = {"常用": {"plugins": ["OtherPlugin"]}}
+    monkeypatch.setattr(folders, "get_configured_system_config", lambda: config)
+
+    folders.remove_plugin_from_folders("DemoPlugin")
+
+    config.set.assert_not_called()
+
+
+def test_remove_plugin_from_folders_does_not_block_uninstall_on_config_error(
+    monkeypatch,
+):
+    """文件夹配置读取失败时只记录错误，不应阻断插件卸载主流程。"""
+    config = MagicMock()
+    config.get.side_effect = RuntimeError("broken folders")
+    error = MagicMock()
+    monkeypatch.setattr(folders, "get_configured_system_config", lambda: config)
+    monkeypatch.setattr(folders.logger, "error", error)
+
+    folders.remove_plugin_from_folders("DemoPlugin")
+
+    error.assert_called_once()
diff --git a/tests/test_plugin_sdk.py b/tests/test_plugin_sdk.py
index 9a24f4e71..d2b36aab3 100644
--- a/tests/test_plugin_sdk.py
+++ b/tests/test_plugin_sdk.py
@@ -63,6 +63,7 @@ def test_sdk_exports_canonical_plugin_interfaces():
     assert encrypt is CryptoJsUtils.encrypt
     assert ModuleManager is CanonicalModuleManager
     assert PluginManager is CanonicalPluginManager
+    assert CanonicalPluginManager.__module__ == "app.runtime.extensions.plugin_manager"
 
 
 def test_legacy_common_crypto_aliases_round_trip():
diff --git a/tests/test_subscribe_chain.py b/tests/test_subscribe_chain.py
index 9c0d7b510..1037fee38 100644
--- a/tests/test_subscribe_chain.py
+++ b/tests/test_subscribe_chain.py
@@ -3368,7 +3368,7 @@ class SubscribeProgressConsolidationTest(TestCase):
         chain = SubscribeChain()
         chain.obtain_images = lambda **_kwargs: None
 
-        # 落库入口已迁到 app/application/subscribe.py，链路层的接缝是 add_subscribe；
+        # 落库入口已迁到 application/subscription/write.py，链路层的接缝是 add_subscribe；
         # 截在这里拿到的就是链路交给写入路径的原始字段，正是本用例要断言的总集数
         def _add_subscribe(**kwargs):
             added.append(kwargs)
diff --git a/tests/test_subscribe_endpoint.py b/tests/test_subscribe_endpoint.py
index e463210db..363be52d3 100644
--- a/tests/test_subscribe_endpoint.py
+++ b/tests/test_subscribe_endpoint.py
@@ -674,7 +674,7 @@ class SubscribeEndpointTest(TestCase):
         """
         owner-aware 创建不应把他人已有订阅当作当前用户订阅。
         """
-        from app.application.subscribe import async_add_subscribe
+        from app.application.subscription.write import async_add_subscribe
         from app.db.oper.subscribe import SubscribeOper
 
         other = _EndpointSubscribe(id=21, username="bob")
diff --git a/tests/test_subscribe_oper.py b/tests/test_subscribe_oper.py
index 90fc0e6e1..a63dfa4ec 100644
--- a/tests/test_subscribe_oper.py
+++ b/tests/test_subscribe_oper.py
@@ -5,7 +5,7 @@ from unittest.mock import AsyncMock, MagicMock, patch
 
 import pytest
 
-from app.application.subscribe import add_subscribe, async_add_subscribe
+from app.application.subscription.write import add_subscribe, async_add_subscribe
 from app.db.models.subscribe import Subscribe
 from app.db.models.subscribehistory import SubscribeHistory
 from app.db.oper.subscribe import SubscribeOper
@@ -17,7 +17,7 @@ def _add(**kwargs):
     """
     经应用层写入路径新增订阅。
 
-    媒体翻译住在 app/application/subscribe.py，查重与落库仍在 SubscribeOper——本文件
+    媒体翻译住在 app/application/subscription/write.py，查重与落库仍在 SubscribeOper——本文件
     钉的是查重语义（谁被查、查几次、带哪些身份字段），所以从翻译入口进、把不带真会话
     的 Oper 注进去，两层的契约一次跑通。
     """
@@ -124,7 +124,7 @@ def test_add_rejects_incomplete_media_identity(identity):
 
     身份不全的订阅写进去就是一条永远匹配不上资源的僵尸订阅，后续按身份去重也会失效。
     """
-    with patch("app.application.subscribe.resolve_media_identity", return_value=identity), \
+    with patch("app.application.subscription.write.resolve_media_identity", return_value=identity), \
             patch("app.db.oper.subscribe.Subscribe") as subscribe_model:
         result = _add(mediainfo=_media(None), season=1)
 
@@ -137,7 +137,7 @@ def test_add_rejects_incomplete_media_identity(identity):
 @pytest.mark.parametrize("identity", _INCOMPLETE_IDENTITIES)
 def test_async_add_rejects_incomplete_media_identity(identity):
     """异步新增与同步路径共用同一道身份守卫，两条链路不能一宽一严。"""
-    with patch("app.application.subscribe.resolve_media_identity", return_value=identity), \
+    with patch("app.application.subscription.write.resolve_media_identity", return_value=identity), \
             patch("app.db.oper.subscribe.Subscribe") as subscribe_model:
         subscribe_model.async_exists = AsyncMock()
 
diff --git a/tests/test_subscribe_write_path.py b/tests/test_subscribe_write_path.py
index 96ca90d04..541eed9b5 100644
--- a/tests/test_subscribe_write_path.py
+++ b/tests/test_subscribe_write_path.py
@@ -1,5 +1,5 @@
 """
-订阅的写入路径：app/application/subscribe.py 的 add_subscribe / async_add_subscribe。
+订阅的写入路径：app/application/subscription/write.py 的 add_subscribe / async_add_subscribe。
 
 这两个函数是订阅表的唯一写入口，把 MediaInfo / MusicInfo 翻译成一行订阅：
 标题、年份、类型、海报背景、评分简介、剧集组、音乐实体与曲目数，再叠上
@@ -26,7 +26,7 @@ import asyncio
 
 import pytest
 
-from app.application.subscribe import add_subscribe, async_add_subscribe
+from app.application.subscription.write import add_subscribe, async_add_subscribe
 from app.db.models.subscribe import Subscribe
 from app.db.oper.subscribe import SubscribeOper
 from app.domain.context import MediaInfo, MusicInfo