diff --git a/astrbot/dashboard/routes/chat.py b/astrbot/dashboard/routes/chat.py
index 56946550a..b50a4bab0 100644
--- a/astrbot/dashboard/routes/chat.py
+++ b/astrbot/dashboard/routes/chat.py
@@ -3,6 +3,7 @@ import json
 import os
 import uuid
 from contextlib import asynccontextmanager
+from typing import cast
 
 from quart import Response as QuartResponse
 from quart import g, make_response, request
@@ -233,15 +234,19 @@ class ChatRoute(Route):
             ),
         )
 
-        response = await make_response(
-            stream(),
-            {
-                "Content-Type": "text/event-stream",
-                "Cache-Control": "no-cache",
-                "Transfer-Encoding": "chunked",
-                "Connection": "keep-alive",
-            },
+        response = cast(
+            QuartResponse,
+            await make_response(
+                stream(),
+                {
+                    "Content-Type": "text/event-stream",
+                    "Cache-Control": "no-cache",
+                    "Transfer-Encoding": "chunked",
+                    "Connection": "keep-alive",
+                },
+            ),
         )
+
         response.timeout = None  # fix SSE auto disconnect issue
         return response
 
@@ -312,7 +317,7 @@ class ChatRoute(Route):
         # remove content
         conversations_ = []
         for conv in conversations:
-            conv.history = None
+            conv.history = None  # type: ignore[attr-defined]
             conversations_.append(conv)
         return Response().ok(data=conversations_).__dict__
 
diff --git a/astrbot/dashboard/routes/config.py b/astrbot/dashboard/routes/config.py
index b947d26f2..827f5e8da 100644
--- a/astrbot/dashboard/routes/config.py
+++ b/astrbot/dashboard/routes/config.py
@@ -2,6 +2,7 @@ import asyncio
 import inspect
 import os
 import traceback
+from typing import Any, cast
 
 from quart import request
 
@@ -26,7 +27,7 @@ from astrbot.core.utils.astrbot_path import get_astrbot_path
 from .route import Response, Route, RouteContext
 
 
-def try_cast(value: str, type_: str):
+def try_cast(value: Any, type_: str):
     if type_ == "int":
         try:
             return int(value)
@@ -133,7 +134,9 @@ def save_config(post_config: dict, config: AstrBotConfig, is_core: bool = False)
                 is_core,
             )
         else:
-            errors, post_config = validate_config(post_config, config.schema, is_core)
+            errors, post_config = validate_config(
+                post_config, cast(dict, config.schema), is_core
+            )
     except BaseException as e:
         logger.error(traceback.format_exc())
         logger.warning(f"验证配置时出现异常: {e}")
@@ -287,6 +290,7 @@ class ConfigRoute(Route):
                     .ok({"config": abconf, "metadata": CONFIG_METADATA_3_SYSTEM})
                     .__dict__
                 )
+            assert abconf_id is not None
             abconf = self.acm.confs[abconf_id]
             return (
                 Response()
@@ -598,7 +602,9 @@ class ConfigRoute(Route):
             return Response().error("缺少参数 provider_id").__dict__
 
         prov_mgr = self.core_lifecycle.provider_manager
-        provider: Provider | None = prov_mgr.inst_map.get(provider_id, None)
+        provider: Provider | None = cast(
+            Provider, prov_mgr.inst_map.get(provider_id, None)
+        )
         if not provider:
             return Response().error(f"未找到 ID 为 {provider_id} 的提供商").__dict__
 
@@ -651,9 +657,9 @@ class ConfigRoute(Route):
             if not isinstance(inst, EmbeddingProvider):
                 return Response().error("提供商不是 EmbeddingProvider 类型").__dict__
 
-            # 初始化
-            if getattr(inst, "initialize", None):
-                await inst.initialize()
+            init_fn = getattr(inst, "initialize", None)
+            if inspect.iscoroutinefunction(init_fn):
+                await init_fn()
 
             # 获取嵌入向量维度
             vec = await inst.get_embedding("echo")
@@ -906,7 +912,7 @@ class ConfigRoute(Route):
         return {"metadata": CONFIG_METADATA_2, "config": config}
 
     async def _get_plugin_config(self, plugin_name: str):
-        ret = {"metadata": None, "config": None}
+        ret: dict = {"metadata": None, "config": None}
 
         for plugin_md in star_registry:
             if plugin_md.name == plugin_name:
diff --git a/astrbot/dashboard/routes/log.py b/astrbot/dashboard/routes/log.py
index eb02fdf40..86cc8c6ca 100644
--- a/astrbot/dashboard/routes/log.py
+++ b/astrbot/dashboard/routes/log.py
@@ -1,6 +1,8 @@
 import asyncio
 import json
+from typing import cast
 
+from quart import Response as QuartResponse
 from quart import make_response
 
 from astrbot.core import LogBroker, logger
@@ -39,14 +41,17 @@ class LogRoute(Route):
                 if queue:
                     self.log_broker.unregister(queue)
 
-        response = await make_response(
-            stream(),
-            {
-                "Content-Type": "text/event-stream",
-                "Cache-Control": "no-cache",
-                "Connection": "keep-alive",
-                "Transfer-Encoding": "chunked",
-            },
+        response = cast(
+            QuartResponse,
+            await make_response(
+                stream(),
+                {
+                    "Content-Type": "text/event-stream",
+                    "Cache-Control": "no-cache",
+                    "Connection": "keep-alive",
+                    "Transfer-Encoding": "chunked",
+                },
+            ),
         )
         response.timeout = None
         return response
diff --git a/astrbot/dashboard/routes/plugin.py b/astrbot/dashboard/routes/plugin.py
index 597a245d4..40a6df7c3 100644
--- a/astrbot/dashboard/routes/plugin.py
+++ b/astrbot/dashboard/routes/plugin.py
@@ -486,6 +486,7 @@ class PluginRoute(Route):
             logger.warning(f"插件 {plugin_name} 不存在")
             return Response().error(f"插件 {plugin_name} 不存在").__dict__
 
+        assert plugin_obj.root_dir_name is not None
         plugin_dir = os.path.join(
             self.plugin_manager.plugin_store_path,
             plugin_obj.root_dir_name,
diff --git a/astrbot/dashboard/routes/route.py b/astrbot/dashboard/routes/route.py
index 1105b69a7..01ab292d4 100644
--- a/astrbot/dashboard/routes/route.py
+++ b/astrbot/dashboard/routes/route.py
@@ -12,6 +12,8 @@ class RouteContext:
 
 
 class Route:
+    routes: list | dict
+
     def __init__(self, context: RouteContext):
         self.app = context.app
         self.config = context.config
diff --git a/astrbot/dashboard/server.py b/astrbot/dashboard/server.py
index 84976f2ba..171a777f6 100644
--- a/astrbot/dashboard/server.py
+++ b/astrbot/dashboard/server.py
@@ -2,9 +2,12 @@ import asyncio
 import logging
 import os
 import socket
+from typing import cast
 
 import jwt
 import psutil
+from flask.json.provider import DefaultJSONProvider
+from psutil._common import addr as psutil_addr
 from quart import Quart, g, jsonify, request
 from quart.logging import default_handler
 
@@ -20,7 +23,7 @@ from .routes.route import Response, RouteContext
 from .routes.session_management import SessionManagementRoute
 from .routes.t2i import T2iRoute
 
-APP: Quart = None
+APP: Quart
 
 
 class AstrBotDashboard:
@@ -47,6 +50,7 @@ class AstrBotDashboard:
         self.app.config["MAX_CONTENT_LENGTH"] = (
             128 * 1024 * 1024
         )  # 将 Flask 允许的最大上传文件体大小设置为 128 MB
+        assert isinstance(self.app.json, DefaultJSONProvider)
         self.app.json.sort_keys = False
         self.app.before_request(self.auth_middleware)
         # token 用于验证请求
@@ -145,7 +149,7 @@ class AstrBotDashboard:
         """获取占用端口的进程详细信息"""
         try:
             for conn in psutil.net_connections(kind="inet"):
-                if conn.laddr.port == port:
+                if cast(psutil_addr, conn.laddr).port == port:
                     try:
                         process = psutil.Process(conn.pid)
                         # 获取详细信息