Function setPlanCache

src/components/CropPlanningSection.tsx:1084–1088

(fieldId: string, data: CropPlan)

    return {};
  }
}

function setPlanCache(cacheKey: string, data: CropPlan) {
  const cache = getPlanCache();
  cache[cacheKey] = { data, timestamp: Date.now() };
  localStorage.setItem(CROP_PLAN_CACHE_KEY, JSON.stringify(cache));
}