Add invoice processing functionality and enhance models and routes

- Introduced new routes for processing invoices in the router.
- Added `InvoiceStatus` enum to manage invoice states.
- Enhanced `InvoiceHeader` and `InvoiceFinancials` models with new fields for status tracking and total packages.
- Updated schemas to include new fields for invoice processing.
- Implemented API methods for processing invoices and checking process status in the frontend.
- Removed outdated validation files related to invoice processing.

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

@@ -43,6 +43,9 @@ class ClassCreateDTO(BaseModel):
     iva_exempt_fraction: Optional[str] = Field(
         None, max_length=4, description="IVA exempt fraction"
     )
+    is_active: Optional[bool] = Field(
+        True, description="Indicates if the class is active (default: true)"
+    )
 
     class Config:
         from_attributes = True
@@ -76,6 +79,9 @@ class ClassCreateDTOFA(ClassCreateDTO):
     class_enabled: Optional[bool] = Field(
         True, description="Indica si la clase está habilitada"
     )
+    is_active: Optional[bool] = Field(
+        True, description="Indicates if the class is active (default: true)"
+    )
 
     class Config:
         from_attributes = True
@@ -116,6 +122,9 @@ class ClassUpdateDTO(BaseModel):
     iva_exempt_fraction: Optional[str] = Field(
         None, max_length=4, description="IVA exempt fraction"
     )
+    is_active: Optional[bool] = Field(
+        True, description="Indicates if the class is active (default: true)"
+    )
 
     model_config = ConfigDict(from_attributes=True, extra='forbid')  # Explicitly forbid extra fields
 
@@ -136,6 +145,7 @@ class ClassResponseDTO(BaseModel):
     sub_key: Optional[str] = None
     physical_review: Optional[int] = None
     iva_exempt_fraction: Optional[str] = None
+    is_active: Optional[bool] = None
     created_at: datetime
     updated_at: datetime