Plan three fictional seeds

Start with: examples/idunseed/settings.csv (a fictional last frost date 2027-04-25 and print week starting 2027-02-14), examples/idunseed/seed-rows.csv (three fictional seeds for Seeds rows 8 to 10) and examples/idunseed/expected-calendar.csv (the dates you should see).

1. On Settings type 2027, 4 and 25 into B3, B4 and B5, and 2027, 2 and 14 into B10, B11 and B12.
2. On Seeds type the three rows from seed-rows.csv into rows 8, 9 and 10, leaving empty cells empty.
3. Open the Calendar sheet and compare rows 8 to 10 with expected-calendar.csv.
4. Open the PrintWeek sheet.

Expected result: Settings B6 shows 2027-04-25. Calendar row 8, Pepper Test Sun: Indoor 2027-02-14 to 2027-02-28 and Transplant 2027-05-09 to 2027-05-16, both OK, packet status OK. Row 9, Pea Early Example: Outdoor 2027-03-28 to 2027-04-11, OK. Row 10, Zinnia Demo Mix: Indoor 2027-03-14 to 2027-03-28 and Outdoor 2027-04-25 to 2027-05-09, packet balance 1, status LOW. PrintWeek for 2027-02-14 to 2027-02-20 lists one task: Pepper Test Sun, stage Indoor sowing / Посев дома, from 2027-02-14 to 2027-02-28. The five DEMO sample rows stay in the sheet but have no task in that week.

All examples are fictional or synthetic.
