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/data_proc.py

@@ -0,0 +1,47 @@
+from datetime import datetime
+
+from nonebot import require
+
+require("nonebot_plugin_orm")
+
+from nonebot_plugin_orm import Model, get_session
+from sqlalchemy import BigInteger, Date, Integer, select
+from sqlalchemy.orm import Mapped, mapped_column
+
+
+class CheckInRecord(Model):
+    """打卡记录，一行一次打卡，同一天可多次"""
+
+    __tablename__ = "deer_pipe_checkin"
+
+    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
+    uid: Mapped[int] = mapped_column(BigInteger, index=True)
+    date: Mapped[datetime.date] = mapped_column(Date, index=True)
+
+
+# 记录信息
+async def record_month(uid):
+    now = datetime.now()
+    async with get_session() as session:
+        session.add(CheckInRecord(uid=int(uid), date=now.date()))
+        await session.commit()
+
+
+# 读取当月信息（返回当月所有打卡的日，同一天多次打卡会有重复项）
+async def get_records(uid):
+    now = datetime.now()
+    month_start = datetime(now.year, now.month, 1).date()
+    if now.month == 12:
+        month_end = datetime(now.year + 1, 1, 1).date()
+    else:
+        month_end = datetime(now.year, now.month + 1, 1).date()
+    async with get_session() as session:
+        result = await session.execute(
+            select(CheckInRecord.date).where(
+                CheckInRecord.uid == int(uid),
+                CheckInRecord.date >= month_start,
+                CheckInRecord.date < month_end,
+            )
+        )
+        days = result.all()
+    return [row[0].day for row in days]