add new skill baoyu-comic

skills/baoyu-xhs-images/references/layouts/flow.md

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+# flow
+
+Process and timeline layout
+
+## Information Density
+
+- 3-6 steps/stages
+- Whitespace: 30-40% of canvas
+
+## Structure
+
+- Connected nodes with arrows
+- Sequential flow, directional
+
+## Text Elements
+
+- Title + step labels + optional descriptions per step
+
+## Visual Balance
+
+- Directional flow (top→bottom or left→right)
+- Clear progression
+
+## Best For
+
+Processes, timelines, cause-effect chains, workflows
+
+## Best Style Pairings
+
+tech (process diagrams), notion (simple flows), fresh (organic flows)