[rewrite] Major changes to code - switched to postgres, added initial backend docker files

backend/app/schemas/user_schemas.py

@@ -1,7 +1,8 @@
-from pydantic import BaseModel, EmailStr, Field
+from sqlmodel import Field as SqlModelField, SQLModel
+from pydantic import EmailStr, Field
 
 
-class UserRegisterSchema(BaseModel):
+class UserRegisterSchema(SQLModel):
     username: str = Field(..., min_length=3, max_length=64)
     email: EmailStr = Field(...)
     phone_number: str = Field(..., min_length=2, max_length=16, pattern=r'^\+[1-9]\d{1,14}$')
@@ -9,9 +10,19 @@ class UserRegisterSchema(BaseModel):
     shop_id: int = 0
 
     class Config:
-        orm_mode = True
+        from_attributes = True
 
-class UserLoginSchema(BaseModel):
+
+class UserLoginSchema(SQLModel):
     shop_id: int = 0
     username: str = Field(..., min_length=3, max_length=64)
-    password: str = Field(..., min_length=6, max_length=128)
+    password: str = Field(..., min_length=6, max_length=128)
+
+
+class Token(SQLModel):
+    access_token: str
+    token_type: str = "bearer"
+
+
+class TokenPayload(SQLModel):
+    sub: str | None = None