feat(setup): Zeus lightning journey — fund-wallet step, IBD timer + finish-setup toast, channel suggestions

Every Lightning setup (Open a Shop, Accept Payments, Run a Lightning Node)
gains a guided path to a working channel:

- New "Fund Your Bitcoin Wallet" step, gated on the blockchain finishing
  its initial sync: while syncing it shows a live progress bar with a
  counting-down time-remaining estimate; once synced it shows the on-chain
  balance and a "Fund Wallet" button that opens the receive modal with a
  fresh address, QR, and the Zeus channel limits (min 150,000 / max
  1,500,000 sats) noted.
- When the sync finishes while a Lightning setup is mid-flight, a toast
  pops with a "Finish setup" link straight back to the wizard (toasts now
  support action links). If several setups are in flight, one is chosen —
  the shared steps complete the lightning part of any of them.
- Channel steps are Zeus-branded (logo + copy) and land on the Lightning
  Channels screen, which now carries an "Open a channel with Zeus" card
  that prefills the open-channel modal with the Olympus peer URI, 150k
  sats, and private-channel checked. "Get Zeus" links to zeusln.com.
- Setup completion now actually requires walking the manual steps (fund,
  open channel, configure) — previously any step whose app was installed
  was silently auto-ticked and running apps marked the whole goal done.
- Completion CTAs now go to the app you just set up ("Go to my shop
  (BTCPay)" etc.) instead of the generic services list; iframe apps open
  in the on-top app overlay.
- On-chain send modal gains a "Send all funds" sweep toggle, backed by
  LND's send_all on the backend (amount no longer required when sweeping).
- Demo/mock: bitcoin.getinfo now returns the block_height/sync_progress
  contract the UI reads and simulates a ~90s IBD ramp per visitor so the
  timer, toast, and fund flow can all be demoed live; channel list data
  fixed (status/channel_point/liquidity totals — the panel previously
  crashed on the missing status field); sendcoins supports send_all.

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

neode-ui/src/components/SendBitcoinModal.vue

@@ -16,8 +16,30 @@
         </div>
 
         <div class="mb-3">
-          <label class="text-white/60 text-sm block mb-1">{{ t('sendBitcoin.amountSats') }}</label>
-          <input v-model.number="amount" type="number" min="1" placeholder="1000" class="w-full input-glass" />
+          <div class="flex items-center justify-between mb-1">
+            <label class="text-white/60 text-sm">{{ t('sendBitcoin.amountSats') }}</label>
+            <button
+              v-if="sendMethod === 'onchain'"
+              @click="toggleSendAll"
+              class="text-xs px-2 py-0.5 rounded border transition-colors"
+              :class="sendAll
+                ? 'bg-orange-500/20 border-orange-500/40 text-orange-300'
+                : 'bg-white/5 border-white/15 text-white/60 hover:text-white/90'"
+            >
+              Send all funds
+            </button>
+          </div>
+          <input
+            v-model.number="amount"
+            type="number"
+            min="1"
+            :placeholder="sendAll ? '' : '1000'"
+            :disabled="sendAll"
+            class="w-full input-glass disabled:opacity-50"
+          />
+          <p v-if="sendAll" class="text-xs text-white/50 mt-1">
+            Sweeps your entire on-chain balance{{ onchainBalance !== null ? ` (~${onchainBalance.toLocaleString()} sats)` : '' }} minus network fees.
+          </p>
         </div>
 
         <div v-if="effectiveMethod !== 'ecash'" class="mb-3">
@@ -47,7 +69,7 @@
 
         <div class="flex gap-3">
           <button @click="close" class="flex-1 glass-button px-4 py-2 rounded-lg text-sm">{{ t('common.close') }}</button>
-          <button @click="send" :disabled="processing || !amount" class="flex-1 glass-button glass-button-warning px-4 py-2 rounded-lg text-sm font-medium disabled:opacity-50">
+          <button @click="send" :disabled="processing || (!amount && !isSweep)" class="flex-1 glass-button glass-button-warning px-4 py-2 rounded-lg text-sm font-medium disabled:opacity-50">
             {{ processing ? t('common.sending') : t('common.send') }}
           </button>
         </div>
@@ -55,7 +77,7 @@
 </template>
 
 <script setup lang="ts">
-import { ref, computed } from 'vue'
+import { ref, computed, watch } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { rpcClient } from '@/api/rpc-client'
 import BaseModal from '@/components/BaseModal.vue'
@@ -75,6 +97,23 @@ const resultHash = ref('')
 const resultArk = ref('')
 const ecashToken = ref('')
 
+// "Send all funds" — sweeps the whole on-chain balance (explicit on-chain tab only)
+const sendAll = ref(false)
+const onchainBalance = ref<number | null>(null)
+const isSweep = computed(() => sendMethod.value === 'onchain' && sendAll.value)
+
+function toggleSendAll() {
+  sendAll.value = !sendAll.value
+  if (sendAll.value && onchainBalance.value === null) {
+    rpcClient.call<{ balance_sats: number }>({ method: 'lnd.getinfo', timeout: 5000 })
+      .then((res) => { onchainBalance.value = res.balance_sats || 0 })
+      .catch(() => { /* balance hint is best-effort */ })
+  }
+}
+
+// Leaving the on-chain tab disarms the sweep so it can never apply elsewhere
+watch(sendMethod, (m) => { if (m !== 'onchain') sendAll.value = false })
+
 const effectiveMethod = computed(() => {
   if (sendMethod.value !== 'auto') return sendMethod.value
   const amt = amount.value || 0
@@ -98,7 +137,8 @@ function copyText(text: string) {
 }
 
 async function send() {
-  if (!amount.value || processing.value) return
+  if (processing.value) return
+  if (!amount.value && !isSweep.value) return
   processing.value = true
   error.value = ''
   ecashToken.value = ''
@@ -134,7 +174,9 @@ async function send() {
       if (!dest.value.trim()) { error.value = t('web5.enterBitcoinAddress'); return }
       const res = await rpcClient.call<{ txid: string }>({
         method: 'lnd.sendcoins',
-        params: { addr: dest.value.trim(), amount: amount.value },
+        params: isSweep.value
+          ? { addr: dest.value.trim(), send_all: true }
+          : { addr: dest.value.trim(), amount: amount.value },
       })
       resultTxid.value = res.txid
     }