diff --git a/specs/SD-0001-mvp-sign-up-and-single-storefront.md b/specs/SD-0001-mvp-sign-up-and-single-storefront.md
index 7fe2f81..087d178 100644
--- a/specs/SD-0001-mvp-sign-up-and-single-storefront.md
+++ b/specs/SD-0001-mvp-sign-up-and-single-storefront.md
@@ -5,8 +5,8 @@
 | **Anchor** | [wiggleverse/wiggleverse-ecomm#1](https://git.wiggleverse.org/wiggleverse/wiggleverse-ecomm/issues/1) (`type/feature`, `priority/P1`) |
 | **Author(s)** | Claude (session ecomm-0020), for Ben Stull |
 | **Reviewers / approvers** | Ben Stull |
-| **Status** | `draft` |
-| **Version** | v0.1.0 |
+| **Status** | `approved` |
+| **Version** | v0.2.0 |
 | **Source artifacts** | BDD corpus: [research/shopify](https://git.wiggleverse.org/wiggleverse/wiggleverse-ecomm-prototype-content/src/branch/main/research/shopify) (esp. [flows/first-run-experience.md](https://git.wiggleverse.org/wiggleverse/wiggleverse-ecomm-prototype-content/src/branch/main/research/shopify/flows/first-run-experience.md)) · Prototype: [wiggleverse-ecomm-prototype](https://git.wiggleverse.org/wiggleverse/wiggleverse-ecomm-prototype) (R01–R07) · Reference: Shopify first-run experience · Supersedes: — |
 
 **Change log**
@@ -14,6 +14,7 @@
 | Date | Version | Change | By |
 | --- | --- | --- | --- |
 | 2026-06-10 | v0.1.0 | Initial draft (session ecomm-0020) | Claude |
+| 2026-06-10 | v0.2.0 | Self-review fixes; status → `approved` under the session's autonomous posture (handbook §6.5) — operator amendments welcome as v0.2.x | Claude |
 
 ---
 
@@ -118,7 +119,7 @@ nothing built on top can ever actually launch.
   - One storefront per merchant is the right *experience* bar for the MVP;
     multiple-storefront merchants are a future need, not a current one. Risk
     if wrong: an early merchant genuinely needs a second storefront — accepted;
-    the door is designed to stay open (§1.7, #1 acceptance).
+    the data is designed to keep that door open (Feature #1 constraint; INV-4).
   - Merchants are reachable by email and will complete an email-based step to
     join. Risk if wrong: an entry channel rethink — accepted at MVP scale.
 - **Constraints:**
@@ -706,6 +707,7 @@ sequenceDiagram
   participant SPA as Admin SPA
   participant BFF as REST BFF
   participant ACC as accounts
+  participant SF as storefronts
   participant M as mailer (port)
   participant DB as SQLite