docs: refresh root README for approved design/ structure

README.md

@@ -8,10 +8,11 @@ This directory is the **product seed** for the Gitea repository `Ty_Tech/Salon_A
 
 | Artifact | Location |
 |----------|----------|
-| Approved design plan | [`docs/DESIGN_PLAN.md`](docs/DESIGN_PLAN.md) |
+| Design plan (SSOT) | [`design/DESIGN_PLAN.md`](design/DESIGN_PLAN.md) |
 | Use cases (SSOT) | [`design/use-cases.md`](design/use-cases.md) |
 | Scenarios | [`design/scenarios.md`](design/scenarios.md) |
 | Resolved decisions | [`design/DECISIONS.md`](design/DECISIONS.md) |
+| Operator runbooks | [`docs/`](docs/) |
 | Implementation | **Not started** until explicit **build** / **implement** |
 
 ## Product planes
@@ -25,11 +26,22 @@ This directory is the **product seed** for the Gitea repository `Ty_Tech/Salon_A
 | Social craft | Owner photos/video + vision aux |
 | Setup / ops | Install, connect SaaS, automatic updates (on by default) |
 
+## Doc placement
+
+| Folder | Purpose |
+|--------|---------|
+| **`design/`** | Product design SSOT — plan, use cases, scenarios, decisions, MCP strategy, update lifecycle |
+| **`docs/`** | Operator/user manuals — install, upgrade, providers, ops |
+
 ## Platform-first rule
 
-All sandbox, policy, credential, channel, and inference mutations go through **`nemohermes` / `openshell`**. Product scripts wrap those CLIs. No parallel control API.
+All sandbox, policy, credential, channel, and inference mutations go through **`nemohermes` / `openshell`**. Product scripts (when built) wrap those CLIs. No parallel control API.
+
+## Layout (scaffolds)
+
+Code under `skills/`, `scripts/`, `services/`, `policy/`, etc. is **scaffold only** until **build**. See each area’s `README.md`.
 
 ## Remote
 
 - Gitea: `Ty_Tech/Salon_Assistant` (public)
-- MCP for ops: `gitea_vps` → `https://giteamcp1.vps1.afterthedemo.com/mcp`
+- Git MCP for this product: **`gitea_vps`** only