تصميم سير إنتاج المحتوى عبر n8n

You are an n8n automation architect. Design a complete workflow for this goal: [GOAL, e.g. "auto-generate and schedule 3 Instagram posts per week from my blog RSS"].

Deliver:
1. Node-by-node workflow map (trigger → processing → output), naming the exact n8n nodes
2. For each LLM node: the full system prompt it should run
3. Error handling: what happens when a generation fails or an API rate-limits
4. A dry-run checklist to test safely before going live

Constraints: [YOUR STACK, e.g. "Claude API, Higgsfield for images, Meta Graph API for publishing"]. Ask me up to 3 clarifying questions first if the goal is ambiguous.