docs: Phase A repo structure — archive, product, kebab-case

- Move copilot history and CSV to docs/archive/
- Add docs/product/ (SSP, intermediate, genre packs) and engineering/adrs/
- Rename all spaced/special-char doc paths to kebab-case
- Nest competitive GTM under docs/gtm/competitive/
- Point README and NORTH_STAR at CANONICAL_STRATEGY
- Leave code/ unchanged for later monorepo Phase B

docs/product/ssp.md

@@ -0,0 +1,17 @@
+# Self-Service Portal (SSP)
+
+Primary product experience for individual local businesses (Model 1).
+
+## Intent
+
+Owners should feel the value before they pay: genre-aware onboarding, site scrape reflection, a live simulation of an AI recommending and booking them, pointer install, in-browser preflight against their MCP, optimization guidance, optional partner handoff, and ongoing reports.
+
+The portal chat UI is a **test harness** for how *external* AI assistants will interpret the business — not a customer-facing chatbot we sell as the product.
+
+## Detail source
+
+Full narrative and priorities: [Canonical Strategy](../strategy/CANONICAL_STRATEGY.md) (§5 Self-Service Portal, §10 priorities).
+
+## Build status
+
+Not implemented. Engineering Priority 0 includes the portal spine once HTTP MCP is underway.