docs: sync from backend faf2221, frontend 022ecb6 — Task #7 derived destinations sweep autostart, recordSweep fix, multi-seller checkout

09 - Audits/Activity Log.md

@@ -11,6 +11,18 @@ entries on top. Maintained by agents per the rule in `../AGENTS.md`.
 
 ---
 
+### 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)
+**Touched:**
+- Backend: `src/app.ts`, `src/models/DerivedDestination.ts`, `src/models/Payment.ts`, `src/services/payment/requestNetwork/requestNetworkPayInService.ts`, `src/services/payment/wallets/derivedDestinations.ts`, `.env.example`
+- Frontend: `src/sections/payment/checkout/rn-in-house-checkout-view.tsx`, `src/sections/request-template/request-template-checkout-payment.tsx`, `src/web3/components/multi-seller-provider-payment.tsx`, `src/sections/payment/checkout/rn-multi-checkout-view.tsx`, `src/app/checkout/request-network/multi/page.tsx`
+**Why:** PRD items D/E/F + frontend cart-aware checkout (A). Auto-start sweep cron on boot; fix `recordSweep` to `$inc` totalSwept instead of `$setOnInsert`; widen Payment unique index to include `sellerOfferId` for multi-seller carts; add multi-seller checkout wrapper and wire into template + request flows.
+**Verification:** Pushed to `integrate-main-into-development` on both repos — Woodpecker builds pending.
+**Linked docs updated:** [[03 - API Reference/Payment API]] (derived-destination endpoints)
+
+---
+
 ### 2026-05-28 — backend@e46be98, frontend@af77b3c — add nick-doc sync rule + version bumps
 
 **Commits:** backend `e46be98` (2.6.24 → 2.6.25), frontend `af77b3c` (2.6.25 → 2.6.26)