* feat: add Bankgirot LB-fil support for salary payments and tax payments
- Implemented `generateBgLb` for salary batch payments, producing opening, payment, and closing records.
- Added tests for `generateBgLb` to ensure correct record generation and validation.
- Created `generateBankgiroPaymentBgLb` for single tax payments to Skatteverket, including validation and formatting.
- Added tests for `generateBankgiroPaymentBgLb` to verify record structure and data integrity.
- Introduced `generateSkattekontoOcr` for generating valid OCR references for Skattekonto payments, with tests for various input formats.
- Updated database schema to track payment file formats and timestamps for salary runs and AGI declarations.
- Created a new table for logging salary payslip deliveries to ensure compliance with audit requirements.
* feat: add write permission check and company ID validation for payment file generation
* feat: add write permission check for salary payment file generation