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_huoziyinshua/__init__.py

@@ -0,0 +1,48 @@
+import os
+import re
+
+from nonebot import on_startswith, require
+from nonebot.adapters.onebot.v11 import MessageEvent
+from nonebot.plugin import PluginMetadata
+
+require("nonebot_plugin_alconna")
+from nonebot_plugin_alconna import UniMessage
+
+from .HuoZiYinShua.huoZiYinShua import huoZiYinShua
+
+__plugin_meta__ = PluginMetadata(
+    name="otto活字印刷",
+    description="鬼畜音源活字印刷(otto语音合成)",
+    usage="otto 一些内容 生成otto语音\notto 一些内容 -reverse 生成并倒放",
+    type="application",
+)
+
+self_path = os.path.dirname(__file__)
+settings = {
+    "sourceDirectory": os.path.join(self_path, "HuoZiYinShua", "sources", ""),
+    "ysddSourceDirectory": os.path.join(self_path, "HuoZiYinShua", "ysddSources", ""),
+    "dictFile": os.path.join(self_path, "HuoZiYinShua", "dictionary.json"),
+    "ysddTableFile": os.path.join(self_path, "HuoZiYinShua", "ysddTable.json"),
+}
+
+HZYS = huoZiYinShua(settings)
+
+otto = on_startswith("otto")
+
+
+@otto.handle()
+async def otto_handle(ev: MessageEvent):
+    txt = ev.message.extract_plain_text().removeprefix("otto")
+    pattern_reverse = re.compile(r"-reverse\s*$")
+
+    if re.search(pattern_reverse, txt):
+        # 结尾匹配到 -reverse
+        reverse = True
+        txt = re.sub(pattern_reverse, "", txt)
+        txt = "，，，" + txt  # 加一段空白
+    else:
+        reverse = False
+        txt = txt + "，，，"  # 加一段空白
+
+    b64audio = HZYS.export(txt, inYsddMode=True, reverse=reverse)
+    await UniMessage.voice(url=f"base64://{b64audio.decode()}").send()