docs: sync from backend 1889169, frontend c44ed64 — Task #7 A verification fix: multi-checkout conversion + orphan-payment guard

09 - Audits/Activity Log.md

@@ -11,6 +11,18 @@ entries on top. Maintained by agents per the rule in `../AGENTS.md`.
 
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+### 2026-05-28 — backend@1889169, frontend@c44ed64 — Task #7 A verification fix: multi-checkout conversion + orphan-payment guard
+
+**Commits:** backend `1889169` (2.6.43 → 2.6.44), frontend `c44ed64` (2.6.43 → 2.6.44)
+**Touched:**
+- Backend: `src/services/marketplace/RequestTemplateService.ts`
+- Frontend: `src/sections/payment/checkout/rn-multi-checkout-view.tsx`
+**Why:** A verification revealed two gaps: (1) `RnMultiCheckoutView.handleFinish` only navigated to payment list and never called `convertTemplatesToRequests`, so multi-seller carts never created PurchaseRequests; fixed by calling conversion with stashed cart items and navigating to the first created request. (2) Backend orphan-payment cleanup found ALL pending payments for the buyer and hard-deleted all but the first — fatal for multi-seller carts; fixed by restricting orphan query to `provider: 'shkeeper'` only so request.network payments retain their independent lifecycle.
+**Verification:** Pushed to `integrate-main-into-development` on both repos — Woodpecker builds pending.
+**Linked docs updated:** [[03 - API Reference/Payment API]]
+
+---
+
 ### 2026-05-28 — backend@faf2221, frontend@022ecb6 — Task #7 derived destinations: sweep autostart, recordSweep fix, multi-seller checkout UX
 
 **Commits:** backend `faf2221` (2.6.42 → 2.6.43), frontend `022ecb6` (2.6.42 → 2.6.43)