Refactoring file structure, not tested yet

app/schemas/url.py

@@ -0,0 +1,24 @@
+# app/schemas/url.py
+
+from pydantic import BaseModel, HttpUrl
+from datetime import datetime
+from typing import Optional
+
+
+class URLCreate(BaseModel):
+    url: HttpUrl
+
+
+class URLResponse(BaseModel):
+    short_url: str
+
+
+class URLStatsResponse(BaseModel):
+    original_url: HttpUrl
+    clicks: int
+    created_at: datetime
+    last_accessed: Optional[datetime] = None
+
+
+class MessageResponse(BaseModel):
+    message: str