- Replace system parameter with boolean field 'skip_upload' in res.company
- Add company configuration view for the skip_upload field
- Hide file uploader widget when skip_upload is enabled on company
- Show 'Create Bill' button as alternative when skip_upload is enabled
- Remove JavaScript patches and unnecessary action_create_invoice override
- Remove configuration from settings in favor of company field

This simplifies the implementation by using company configuration instead
of system parameters and removes the need for JavaScript patches.