Dust-isolate arkoor outputs; prove lightning E2E on regtest

The server rejects an arkoor mixing dust and non-dust outputs, which broke
small Lightning payments (a 45-sat HTLC next to change) and tiny plain
sends. Mirror bark's isolation: dust outputs route through a combined
isolation output spent by a fanout tx, splitting a non-dust output to pad
the dust below-threshold. Outputs can therefore split across two vtxos, so
the manager now classifies results by policy instead of index (legacy
single-field actions still resume).

Regtest now runs the full stack: dedicated cln-ark node (secondark/cln-hold,
hold plugin + xpay) wired into captaind with a channel to the coinos dev clc
node. tools/ark/ln-e2e-test.js proves pay (5000 sat and a 25-sat dust zap),
hold-invoice receive with claim, and spending the claimed vtxos.

Co-Authored-By: Claude Fable 5 <[email protected]>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/features/ark.js b/src/features/ark.js
index 9b057b1..03041a2 100644
--- a/src/features/ark.js
+++ b/src/features/ark.js
@@ -722,7 +722,7 @@ export function arkFeature(ctx) {
       const actionId = await mgr.send(z.address, sats);
       const action = mgr.state.actions.find((a) => a.id === actionId);
       if (!action || action.step === 'failed') throw new Error(action?.error || t('claimFailed'));
-      const vtxoId = decodeVtxo(hex.decode(action.destBytes)).id;
+      const vtxoId = decodeVtxo(hex.decode((action.destBytesList || [action.destBytes])[0])).id;
       // the receipt is best-effort: the sats are already delivered via mailbox
       await wallet.nostrPublish({
         kind: ARK_ZAP_KIND,
@@ -1425,7 +1425,7 @@ export function arkFeature(ctx) {
       const actionId = await mgr.send(gm.address(), amountSat);
       const action = mgr.state.actions.find((a) => a.id === actionId);
       if (!action || action.step === 'failed') throw new Error(action?.error || t('claimFailed'));
-      const vtxoId = decodeVtxo(hex.decode(action.destBytes)).id;
+      const vtxoId = decodeVtxo(hex.decode((action.destBytesList || [action.destBytes])[0])).id;
       arkGiftRecords().push({ id: vtxoId, amountSat, secretHex, created: Date.now(), revoked: false, claimed: false });
       mgr._save();
       return { code: encodeArkGiftCode(getNetwork(), amountSat, secret), amount: amountSat };