Default to padding blinded paths#4213

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TheBlueMatt wants to merge 3 commits intolightningdevkit:mainfrom

TheBlueMatt:2025-10-pad-use-non-compact-bps

Commits on Nov 9, 2025

Split `OffersContext::OutboundPayment` into `InRefund`/`InInvReq`
TheBlueMatt
committed

Commits on Nov 10, 2025

Make `DefaultMessageRouter` use the context to pad/compact paths
TheBlueMatt
committed
Always pad `BlindedMessagePath` hop data to a consistent length
TheBlueMatt
committed