Sedmicni Summary

@asapmaki/vozzy-whatsapp-sedmicni-summary-skill-md

Create weekly summaries by aggregating daily summaries for Gastrohem WhatsApp conversations. This skill should be used when the user asks to generate weekly summaries, see what happened during the week, or prepare plans for next week (e.g., "Make weekly summary", "Generiši sedmični summary", "Weekly report for 20.10-27.10"). Aggregates activities per person, detects completed tasks, and generates next week's plan.