♻ Move project source files to top level from src, update Sentry dependency (#630)

Co-authored-by: Sebastián Ramírez <tiangolo@gmail.com>

backend/app/schemas/token.py

@@ -0,0 +1,10 @@
+from pydantic import BaseModel
+
+
+class Token(BaseModel):
+    access_token: str
+    token_type: str
+
+
+class TokenPayload(BaseModel):
+    sub: int | None = None