Move the framework PRD from specs/ to docs/ and remove the misplaced
specs/ directory. Document repository layout in AGENTS.md and SCOPE.md:
generic material in docs/, project-specific MVP artifacts in
projects/coulomb-pricing/, execution tracking in workplans/.
Convert legacy AdaptivePricing-MVP-Workplan.md into
ADAPTIVE-WP-0002-economic-observatory-mvp.md with ADR-001 frontmatter,
eight sprint task blocks, and State Hub workstream registration. Mark
bootstrap task T03 done after seeding the first implementation workplan.