Update filename format to include both project and quotation names:
YYYY-MM-DD (PROJECT-NAME) QUOTATION-NAME BOM.csv
Changes:
- Add ProjectName field to ExportRequest (optional)
- Update ExportCSV: use project_name if provided, otherwise fall back to name
- Update ExportConfigCSV: use config name for both project and quotation
Example filenames:
2026-02-09 (OPS-1957) config1 BOM.csv
2026-02-09 (MyProject) MyQuotation BOM.csv
Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>