Reorganize documentation into canonical repository layout

Adopt CoulombSocial/HelixForge/MarkiTect documentation structure:
- research/260608-yawex-prior-art/ — yawex exploration and sources
- demand/ — inbound NetKingdom integration requirements
- spec/ — PRD, TSD, UseCaseCatalog, ArchitectureBlueprint scaffolds
- docs/ — stakeholder documentation and repository-layout guide
- wiki/, issues/, history/ — scaffolded directories

Add SCOPE.md and AGENTS.md. Update workplan paths and README.

docs/repository-layout.md

@@ -0,0 +1,58 @@
+# Repository documentation layout
+
+This repository follows the CoulombSocial / HelixForge / MarkiTect documentation
+layout. It is a **recommendation** for efficient information retrieval, not a
+strict law.
+
+## Operating model
+
+- `INTENT.md` captures aspiration and boundaries.
+- `SCOPE.md` captures a top-level view of what we achieve.
+- Work closes the gap from SCOPE to INTENT while learning and refining both.
+
+## Directories
+
+### `research/`
+
+Exploration results in the problem and solution space. Use a `yymmdd-` prefix
+on markdown files or subdirectories when multiple files or sources are involved.
+
+### `demand/`
+
+Inbound feature requests, requirements, and suggestions not yet reviewed into
+`spec/` or `workplans/`. Raw material — needs scrutiny before implementation.
+
+### `spec/`
+
+Implementation guardrails. Typical files:
+
+- `ProductRequirementsDocument.md`
+- `TechnicalSpecificationDocument.md`
+- `UseCaseCatalog.md`
+- `ArchitectureBlueprint.md`
+
+Background: InfoTechPrimers on coulomb.social.
+
+### `workplans/`
+
+State Hub–registered workplans with implementation tasks. Finished or canceled
+workplans move to `history/` with a `yymmdd-` archive prefix.
+
+### `docs/`
+
+Stakeholder documentation (this directory).
+
+### `wiki/`
+
+Interconnected collective knowledge without a single perspective. Powerful when
+connected to a wiki UI for creators, users, and investors.
+
+### `issues/`
+
+Optional mirror of relevant open tickets from customer support, dev-sec-ops, or
+other ticket systems.
+
+### `history/`
+
+Archived material no longer needed for daily work. Use `yymmdd-` prefixes.
+Consult only for research or diagnostics.