Initial FastAPI admin auth scaffold

app/constants/result_code.py

@@ -0,0 +1,12 @@
+from enum import IntEnum
+
+
+class ResultCode(IntEnum):
+    SUCCESS = 0
+    ERROR = 1
+    JWT_EXPIRED = 10001
+    JWT_ERROR = 10002
+    OLD_PASSWORD_ERROR = 10003
+    ACCOUNT_DEACTIVATING = 20001
+    ACCOUNT_DEACTIVATED = 20002
+    ACCOUNT_CANNOT_DEACTIVATE = 20003