feat(wallet): show Lightning, Cashu and Fedimint activity in the transactions modal

- new lnd.lightning-history RPC: settled invoices (incoming) + succeeded
  payments (outgoing) normalized to the wallet-transaction shape; on-chain
  history stays in lnd.gettransactions
- Home merges on-chain + lightning + ecash history into one sorted list;
  every entry now carries kind (onchain/lightning/cashu/fedimint)
- modal renders a rail badge for non-onchain rows instead of a bogus
  confirmation count, and only on-chain rows link into mempool

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

neode-ui/src/views/Home.vue

@@ -545,6 +545,7 @@ function ecashToWalletTransaction(tx: EcashTransaction): WalletTransaction {
     dest_addresses: [],
     label: tx.description,
     block_height: 0,
+    kind: tx.kind,
   }
 }
 
@@ -560,10 +561,12 @@ async function loadWeb5Status() {
   // here, so any Cashu or Fedimint receive (e.g. a TollGate payment) never
   // appeared in the Transactions modal even though the balance included it.
   let lndTxs: WalletTransaction[] = []
-  try { const res = await rpcClient.call<{ transactions: WalletTransaction[]; incoming_pending_count: number }>({ method: 'lnd.gettransactions', timeout: 5000 }); lndTxs = res.transactions || [] } catch { /* keep last-known transactions */ }
+  try { const res = await rpcClient.call<{ transactions: WalletTransaction[]; incoming_pending_count: number }>({ method: 'lnd.gettransactions', timeout: 5000 }); lndTxs = (res.transactions || []).map(tx => ({ ...tx, kind: 'onchain' as const })) } catch { /* keep last-known transactions */ }
+  let lightningTxs: WalletTransaction[] = []
+  try { const res = await rpcClient.call<{ transactions: WalletTransaction[] }>({ method: 'lnd.lightning-history', timeout: 5000 }); lightningTxs = res.transactions || [] } catch { /* keep last-known transactions */ }
   let ecashTxs: WalletTransaction[] = []
   try { const res = await rpcClient.call<{ transactions: EcashTransaction[] }>({ method: 'wallet.ecash-history', timeout: 5000 }); ecashTxs = (res.transactions || []).map(ecashToWalletTransaction) } catch { /* keep last-known transactions */ }
-  walletTransactions.value = [...lndTxs, ...ecashTxs].sort((a, b) => b.time_stamp - a.time_stamp)
+  walletTransactions.value = [...lndTxs, ...lightningTxs, ...ecashTxs].sort((a, b) => b.time_stamp - a.time_stamp)
 }
 
 // System stats

neode-ui/src/views/home/HomeWalletCard.vue

@@ -172,6 +172,8 @@ export interface WalletTransaction {
   dest_addresses: string[]
   label: string
   block_height: number
+  // Which rail the transaction happened on; absent = onchain (older backends)
+  kind?: 'onchain' | 'lightning' | 'cashu' | 'fedimint'
 }
 
 const props = defineProps<{