refactor: simplify refine-node skill and auto-chain all workflow skills

Rewrite refine-node to draft-first approach (444 → 142 lines) — proposes
complete schemas for all nodes at once instead of per-field Q&A. Also
auto-chain the full pipeline: create-workflow → refine-node → compile-workflow
without stopping for approval between each phase.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: cevian

skills/create-workflow/SKILL.md

@@ -164,10 +164,8 @@ Built-in nodes: `web_read`
 
 ### After Writing
 
-Tell the user:
-1. Where the spec was written
-2. List the nodes that need refinement
-3. Suggest running `/0pflow:refine-node` when ready, then `/0pflow:compile-workflow` to generate TypeScript
+1. Tell the user where the spec was written
+2. Immediately invoke `/0pflow:refine-node` for the workflow to refine all nodes
 
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