Forge Project State 6

Related plan: Forge Project Plan 6 — Check Revisions

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• Task 1 — Rename evaluation disposition “accept” → “update”
• Task 2 — Change Plan mutability: frozen when next Plan starts
• Task 3 — Per-Plan State files and sidebar ordering
• Task 4 — Update lifecycle diagram (Mermaid): Check can loop back to Implement
• Task 5 — Sidebar and Index Registration, Build Verification, Commit