florian.berthold
170aa84a0f
Add indoor_sowing_weeks, direct_sowing_weeks, transplanting_weeks, glasshouse_weeks, harvesting_weeks (integer[]) to backend Cultivar and CreateCultivar structs with INSERT/UPDATE SQL bindings. Frontend PlantingCalendar component rewritten as a compact 52-column Gantt-style grid grouped by month headers. Prefers week data when available, falls back to expanding month data into week ranges. Calendar displayed full-width on cultivar detail page with color legend.