When bills are created from a supplier QR scan, Odoo now uses the GST treatment provided by Partner Autocomplete instead of defaulting to regular treatment. This helps ensure the tax setup is more accurate and reduces manual corrections.

Before this commit:
We used to set regular treatment when using QR Vendor Scan

After this commit:
We use the GST Treatment received from Partner Autocomplete to set the GST Treatment

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This change corrects how overtime one-time payments are processed in Swiss payroll transmissions. It helps ensure these payments are sent with the right information, reducing payroll errors and manual corrections.