chore: move Auto_Bangumi/src -> Auto_Bangumi/backend/src, prepare for merge WebUI repo

backend/src/module/models/api.py

@@ -0,0 +1,18 @@
+from pydantic import BaseModel
+
+
+class RssLink(BaseModel):
+    rss_link: str
+
+
+class AddRule(BaseModel):
+    title: str
+    season: int
+
+
+class ChangeConfig(BaseModel):
+    config: dict
+
+
+class ChangeRule(BaseModel):
+    rule: dict