first commit

models.py

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+from tortoise.models import Model
+from tortoise import fields
+
+class PresetCode(Model):
+    """预设代码数据库模型"""
+    id = fields.IntField(pk=True)
+    query = fields.CharField(max_length=255, unique=True)
+    code = fields.TextField()
+    
+    class Meta:
+        table = "preset_codes"