Method isRecurringTaskCompleteForDate

src/main.ts:1318–1325

* Check if a recurring task is completed for a specific date

(task: TaskInfo, date: Date)

	 * Check if a recurring task is completed for a specific date
	 */
	isRecurringTaskCompleteForDate(task: TaskInfo, date: Date): boolean {
		if (!task.recurrence) return false;
		const dateStr = formatDateForStorage(date);
		const completeInstances = Array.isArray(task.complete_instances)
			? task.complete_instances
			: [];
		return completeInstances.includes(dateStr);
	}

	/**
	 * Formats time in minutes to a readable string