Add notification sender and update item routes

pkg/sender/__init__.py

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+from .wechat_bot import WeChatBot
+from .server_chan import ServerChatBot

pkg/sender/server_chan.py

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+from typing import Literal
+from loguru import logger
+from model import Setting
+from sqlmodel.ext.asyncio.session import AsyncSession
+from pkg.utils import raise_internal_error, raise_service_unavailable
+import aiohttp
+
+class ServerChatBot:
+    async def get_url(session: AsyncSession):
+        server_chan_key = await Setting.get(session, Setting.name == "server_chan_key")
+    
+        if not server_chan_key.value:
+            raise_internal_error("Server酱未配置，请联系管理员")
+        
+        url = f"https://sctapi.ftqq.com/{server_chan_key.value}.send"
+        return url
+    
+    async def send_text(
+        session: AsyncSession,
+        title: str, 
+        description: str, 
+    ) -> None:
+        """发送的 Markdown 消息。
+
+        Args:
+            session (AsyncSession): 数据库会话
+            title (str): 需要发送的标题
+            description (str): 需要发送的文本消息
+        """
+        async with aiohttp.ClientSession() as http_session:
+            async with http_session.post(
+                url=await ServerChatBot.get_url(session),
+                data={
+                    "title": title,
+                    "desp": description
+                }
+            ) as response:
+                if response.status != 200:
+                    logger.error(f"Failed to send to Server Chan: {response.status}")
+                    raise_internal_error("Server酱服务不可用，请稍后再试")
+                else:
+                   logger.info("Server Chan message sent successfully")

pkg/sender/wechat_bot.py

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+from typing import Literal
+from loguru import logger
+from model import Setting
+from sqlmodel.ext.asyncio.session import AsyncSession
+from pkg.utils import raise_internal_error, raise_service_unavailable
+import aiohttp
+
+webhook_url = "https://qyapi.weixin.qq.com/cgi-bin/webhook/send"
+
+class WeChatBot:
+    async def get_key(session: AsyncSession):
+        key = await Setting.get(session, Setting.name == "wechat_bot_key")
+    
+        if not key.value:
+            raise_internal_error("企业微信机器人未配置，请联系管理员")
+        return key.value
+    
+    async def send_text(
+        session: AsyncSession, 
+        text: str, 
+        mentioned_all: bool = False,
+        mentioned_list: list[str] = [],
+        mentioned_mobile_list: list[str] = []
+    ) -> None:
+        """发送文本类型的消息。
+
+        Args:
+            session (AsyncSession): 数据库会话
+            text (str): 需要发送的文本消息
+            mentioned_all (bool, optional): 是否提及所有人 Defaults to False.
+            mentioned_list (list[str], optional): 提及的用户列表 Defaults to [].
+            mentioned_mobile_list (list[str], optional): 提及的手机号码列表 Defaults to [].
+        """
+        key = await WeChatBot.get_key(session)
+        
+        async with aiohttp.ClientSession() as http_session:
+            async with http_session.post(
+                url=f"{webhook_url}?key={key}",
+                json={
+                    "msgtype": "text",
+                    "text": {
+                        "content": text
+                    },
+                    "mentioned_list": ["@all"] if mentioned_all else mentioned_list,
+                    "mentioned_mobile_list": ["@all"] if mentioned_all else mentioned_mobile_list
+                }
+            ) as response:
+                if response.status != 200:
+                    logger.error(f"Failed to send WeChat message: {response.status}")
+                    raise_internal_error("企业微信机器人服务不可用，请稍后再试")
+                else:
+                    resp_json = await response.json()
+                    if resp_json.get("errcode") != 0:
+                        logger.error(f"WeChat API error: {resp_json.get('errmsg')}")
+                        raise_service_unavailable("发送企业微信消息失败，请稍后再试或联系管理员")
+                    else:
+                        logger.info("WeChat message sent successfully")
+    
+    async def send_markdown(
+        session: AsyncSession, 
+        markdown: str, 
+        version: Literal['v1', 'v2'],
+        mentioned_all: bool = False,
+        mentioned_list: list[str] = [],
+        mentioned_mobile_list: list[str] = []
+    ) -> None:
+        key = await WeChatBot.get_key(session)
+        
+        if version == 'v1':
+            payload = {
+                "msgtype": "markdown",
+                "markdown": {
+                    "content": markdown,
+                    "mentioned_list": ["@all"] if mentioned_all else mentioned_list,
+                    "mentioned_mobile_list": ["@all"] if mentioned_all else mentioned_mobile_list
+                }
+            }
+        elif version == 'v2':
+            payload = {
+                "msgtype": "markdown_v2",
+                "markdown_v2": {
+                    "content": markdown,
+                    "mentioned_list": ["@all"] if mentioned_all else mentioned_list,
+                    "mentioned_mobile_list": ["@all"] if mentioned_all else mentioned_mobile_list
+                }
+            }
+        
+        async with aiohttp.ClientSession() as http_session:
+            async with http_session.post(
+                url=f"{webhook_url}?key={key}",
+                json=payload
+            ) as response:
+                if response.status != 200:
+                    logger.error(f"Failed to send WeChat message: {response.status}")
+                    raise_internal_error("企业微信机器人服务不可用，请稍后再试")
+                else:
+                    resp_json = await response.json()
+                    if resp_json.get("errcode") != 0:
+                        logger.error(f"WeChat API error: {resp_json.get('errmsg')}")
+                        raise_service_unavailable("发送企业微信消息失败，请稍后再试或联系管理员")
+                    else:
+                        logger.info("WeChat message sent successfully")