Refactor DTO classes to use model_config with ConfigDict for attribute handling

- Updated multiple DTO classes across various modules to replace the `Config` class with `model_config = ConfigDict(from_attributes=True)`.
- This change enhances consistency in attribute handling and aligns with the latest Pydantic practices.
- Adjusted error handling in core modules to change status codes from `HTTP_422_UNPROCESSABLE_ENTITY` to `HTTP_422_UNPROCESSABLE_CONTENT` for improved clarity in validation responses.

backend/api/v1/modules/a76/clients_and_providers/dto.py

@@ -6,7 +6,7 @@ Reemplaza schemas.py siguiendo enfoque DDD y estilo NestJS
 from decimal import Decimal
 from typing import List, Literal, Optional
 
-from pydantic import BaseModel, Field, model_validator
+from pydantic import BaseModel, ConfigDict, Field, model_validator
 
 from .validators import is_valid_rfc, is_valid_tax_id
 
@@ -36,8 +36,7 @@ class ClientProviderAddressDTO(BaseModel):
     contact: Optional[str] = Field(None, max_length=50, description="Contact person")
     reference: Optional[str] = Field(None, max_length=250, description="Reference")
 
-    class Config:
-        from_attributes = True
+    model_config = ConfigDict(from_attributes=True)
 
 
 # DTOs para programas
@@ -86,8 +85,7 @@ class ClientProviderProgramsDTO(BaseModel):
         None, max_length=300, description="AUTSE number"
     )
 
-    class Config:
-        from_attributes = True
+    model_config = ConfigDict(from_attributes=True)
 
 
 # DTOs principales
@@ -145,8 +143,7 @@ class ClientProviderCreateDTO(BaseModel):
                 )
         return self
 
-    class Config:
-        from_attributes = True
+    model_config = ConfigDict(from_attributes=True)
 
 
 class ClientProviderUpdateDTO(BaseModel):
@@ -203,8 +200,7 @@ class ClientProviderUpdateDTO(BaseModel):
                 )
         return self
 
-    class Config:
-        from_attributes = True
+    model_config = ConfigDict(from_attributes=True)
 
 
 class ClientProviderResponseDTO(BaseModel):
@@ -232,8 +228,7 @@ class ClientProviderResponseDTO(BaseModel):
     address: Optional[ClientProviderAddressDTO] = None
     programs: Optional[ClientProviderProgramsDTO] = None
 
-    class Config:
-        from_attributes = True
+    model_config = ConfigDict(from_attributes=True)
 
 
 # DTOs para respuestas específicas
@@ -247,8 +242,7 @@ class ClientProviderBasicDTO(BaseModel):
     client_or_provider: Optional[str] = None
     is_active: Optional[bool] = None
 
-    class Config:
-        from_attributes = True
+    model_config = ConfigDict(from_attributes=True)
 
 
 class ClientProviderListDTO(BaseModel):
@@ -259,8 +253,7 @@ class ClientProviderListDTO(BaseModel):
     page: int
     size: int
 
-    class Config:
-        from_attributes = True
+    model_config = ConfigDict(from_attributes=True)
 
 
 class ClientProviderPaginatedResponseDTO(BaseModel):
@@ -271,5 +264,4 @@ class ClientProviderPaginatedResponseDTO(BaseModel):
     page: int
     page_size: int
 
-    class Config:
-        from_attributes = True
+    model_config = ConfigDict(from_attributes=True)