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.

spec/TechnicalSpecificationDocument.md

@@ -0,0 +1,51 @@
+# TechnicalSpecificationDocument
+
+Status: **draft scaffold** · Date: 2026-06-08
+
+See InfoTechPrimers on coulomb.social for TSD conventions.
+
+## 1. System Overview
+
+Python package (`src/shard_wiki/`) implementing a federation orchestration
+layer. Markdown-first, backend-neutral page model. Git-addressable coordination
+per information space.
+
+## 2. Implementation Stack
+
+| Concern | Choice |
+|---------|--------|
+| Language | Python ≥ 3.11 |
+| Layout | `src/` package, hatchling build |
+| Tests | pytest |
+| Lint/format | ruff |
+
+## 3. Core Abstractions (to be specified)
+
+| Abstraction | Description |
+|-------------|-------------|
+| Shard | Independently meaningful page store with sovereignty |
+| Root entity | Joined information space shards attach to |
+| Shard adapter contract | Versioned, capability-aware backend interface |
+| Wiki page model | Paths, links, metadata, revisions |
+| Projection | Lazy local view of remote content |
+| Overlay | Non-destructive edit before remote mutation |
+| Coordination journal | Git-backed change record |
+
+## 4. Architecture References
+
+- `spec/ArchitectureBlueprint.md` — access, history, identity delegation
+
+## 5. Integration Boundaries
+
+- Authentication delegated to external identity provider (reference:
+  net-kingdom + user-engine). See `demand/260608-netkingdom-integration-requirements.md`.
+- No credential or secret storage in shard-wiki core.
+
+## 6. Current Implementation
+
+Package scaffold only (`__version__`, smoke tests). Domain model not yet coded.
+
+## 7. Next Specification Work
+
+Outputs from `SHARD-WP-0001` tasks (page resolution, namespaces, derived views,
+provenance, overlays, link semantics) will be incorporated here as they complete.