refactor: 独立长消息处理为longtext包

pkg/qqbot/longtext/strategy.py

@@ -0,0 +1,22 @@
+from __future__ import annotations
+import abc
+import typing
+
+import mirai
+from mirai.models.message import MessageComponent
+
+from ...boot import app
+
+
+class LongTextStrategy(metaclass=abc.ABCMeta):
+    ap: app.Application
+
+    def __init__(self, ap: app.Application):
+        self.ap = ap
+    
+    async def initialize(self):
+        pass
+    
+    @abc.abstractmethod
+    async def process(self, message: str) -> list[MessageComponent]:
+        return []