Scaffold a complete Obsidian Project plan from a one-line brief. Returns a markdown document with: frontmatter (status, priority, owner, deadline), Goal, Success criteria checklist, Why now, In/Out scope, and a 3-7 row Decomposition table with tasks/agents/outputs. Fitted to the Vault Pro 70-Templates/Project-Template.md structure. Useful for AI agents that need to break down a goal into concrete planning artifacts.