Mermaid diagram engine + RawBlock script re-execution for q2 preview parity#241

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feature/mermaid-engine

Commits on May 29, 2026

plan + beads: mermaid engine design session (bd-je48v)

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mermaid plan + beads: v2 revision after PR #238 review

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mermaid plan + beads: Q-B → B1 (the hack), with bd-mqk49 follow-up

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mermaid plan: close bd-c6h96 + bd-fztki; record Phase 1 audit findings

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mermaid: MermaidEngine + integration tests (bd-gwfdo)

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sync beads: close bd-gwfdo (MermaidEngine landed on feature/mermaid-engine)
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bd-my0o5: q2 preview renders mermaid diagrams end-to-end

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hub-client: changelog for f7255ace (RawBlock script re-execution)
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sync beads: close bd-my0o5 + bd-iq0hp (preview verified on feature/mermaid-engine)
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