Add HeXi bot codebase: custom plugins, web frontends, tests

- hexi core: message handling, rate limiting, cooldown, plugin manager
- Custom plugins: BF stats, daily check-in, quotes, persona cards, etc.
- Community plugins vendored under hexi/plugins with local fixes
- Web admin frontends (learning-chat, persona-admin), unified hexi/web
- Tests for rate_limit/cooldown/memes/persona; poetry.lock

Co-Authored-By: Claude <noreply@anthropic.com>

hexi/plugins/nonebot_plugin_deer_pipe/__init__.py

@@ -0,0 +1,69 @@
+from nonebot import on_command
+from nonebot.adapters.onebot.v11 import MessageEvent, Bot, MessageSegment
+from nonebot.plugin import PluginMetadata
+from nonebot.rule import to_me
+
+from .data_proc import *
+from .img_generator import *
+import io
+import base64
+
+__plugin_meta__ = PluginMetadata(
+    name="打卡记鹿",
+    description="你今天鹿管了ma?",
+    usage="at机器人 发送：打卡    "
+          "直接发送：查卡（查询打卡记录）",
+    type="application",
+)
+
+record = on_command("打卡记鹿", aliases={"打卡"}, rule=to_me())
+query = on_command("查询记录", aliases={"查卡"})
+
+
+@record.handle()
+async def do_job(bot: Bot, ev: MessageEvent):
+    # 获取当前日期的年份和月份
+    now = datetime.now()
+    year = now.year
+    month = now.month
+    # 获取发信人信息
+    uid = str(ev.user_id)
+    message_id = ev.message_id
+    # 添加一条记录
+    await record_month(uid)
+    # 获取记录
+    img = await draw_calendar_grid_image(uid, year, month)
+    text_msg = MessageSegment.text("这是您的打卡记鹿：\n")
+    image_msg = MessageSegment.image(pic2b64(img))
+    mix_msg = (text_msg,)
+    mix_msg += image_msg
+    reply_msg = (MessageSegment.reply(message_id),)
+    reply_msg += mix_msg
+    await record.finish(reply_msg)
+
+
+def pic2b64(pic: Image) -> str:
+    buf = io.BytesIO()
+    pic.save(buf, format='PNG')
+    base64_str = base64.b64encode(buf.getvalue()).decode()
+    return 'base64://' + base64_str
+
+
+@query.handle()
+async def query_job(bot: Bot, ev: MessageEvent):
+    # 获取当前日期的年份和月份
+    now = datetime.now()
+    year = now.year
+    month = now.month
+    # 获取发信人信息
+    uid = str(ev.user_id)
+    message_id = ev.message_id
+    # 获取记录
+    img_file = await draw_calendar_grid_image(uid, year, month)
+    text_msg = MessageSegment.text("这是您的记鹿：\n")
+    image_msg = MessageSegment.image(pic2b64(img_file))
+    mix_msg = (text_msg,)
+    mix_msg += image_msg
+    reply_msg = (MessageSegment.reply(message_id),)
+    reply_msg += mix_msg
+    await record.finish(reply_msg)