feat(wallet): LND wedge watchdog + Fedi send rail + token QRs + Auto hidden

- LND watchdog: framework-pt's LND sat wedged 14h (RPC up, server never
  ready, channels inactive) with nothing noticing. 15 consecutive bad
  minutes now bounce the container automatically (30min cooldown) —
  silent multi-hour Lightning outages become self-healed blips.
- Send modal: Auto tab hidden; Ecash splits into Cashu and Fedi (new
  wallet.fedimint-send RPC wrapping the existing spend_from_any); both
  rails render the generated token as a scannable QR alongside the
  copyable text.

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

neode-ui/src/components/SendBitcoinModal.vue

@@ -3,12 +3,12 @@
         <!-- Method tabs -->
         <div class="flex gap-1 mb-4 p-1 bg-white/5 rounded-lg">
           <button
-            v-for="m in (['auto', 'lightning', 'onchain', 'ecash', 'ark'] as const)"
+            v-for="m in (['lightning', 'onchain', 'ecash', 'fedimint', 'ark'] as const)"
             :key="m"
             @click="sendMethod = m"
             class="flex-1 px-2 py-1.5 rounded text-xs font-medium capitalize transition-colors"
             :class="sendMethod === m ? 'bg-white/15 text-white' : 'text-white/50 hover:text-white/80'"
-          >{{ m === 'onchain' ? t('sendBitcoin.onChain') : m === 'lightning' ? t('sendBitcoin.lightning') : m === 'ecash' ? t('sendBitcoin.ecash') : m === 'ark' ? 'Ark' : t('sendBitcoin.auto') }}</button>
+          >{{ m === 'onchain' ? t('sendBitcoin.onChain') : m === 'lightning' ? t('sendBitcoin.lightning') : m === 'ecash' ? 'Cashu' : m === 'fedimint' ? 'Fedi' : 'Ark' }}</button>
         </div>
 
         <div v-if="sendMethod === 'auto'" class="mb-3 p-2 bg-white/5 rounded-lg">
@@ -49,8 +49,13 @@
           <textarea v-model="dest" rows="2" :placeholder="effectiveMethod === 'lightning' ? 'lnbc...' : effectiveMethod === 'ark' ? 'tark1… / lnbc… / user@lnaddress' : 'bc1...'" class="w-full input-glass font-mono"></textarea>
         </div>
 
-        <div v-if="ecashToken && effectiveMethod === 'ecash'" class="mb-3 p-2 bg-white/5 rounded-lg">
+        <div v-if="ecashToken" class="mb-3 p-2 bg-white/5 rounded-lg">
           <p class="text-white/50 text-xs mb-1">{{ t('sendBitcoin.tokenShareLabel') }}</p>
+          <!-- QR so the recipient can scan the token straight off this screen
+               (animated multi-frame not needed: qrcode handles these sizes). -->
+          <div class="flex justify-center my-2">
+            <canvas ref="tokenQrCanvas" class="rounded-lg bg-white p-2"></canvas>
+          </div>
           <p class="text-xs font-mono text-white/80 break-all">{{ ecashToken }}</p>
           <button @click="copyText(ecashToken)" class="mt-2 text-xs text-orange-400 hover:text-orange-300">{{ t('common.copy') }}</button>
         </div>
@@ -83,7 +88,7 @@
 </template>
 
 <script setup lang="ts">
-import { ref, computed, watch } from 'vue'
+import { ref, computed, watch, nextTick } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { rpcClient } from '@/api/rpc-client'
 import BaseModal from '@/components/BaseModal.vue'
@@ -93,7 +98,9 @@ const { t } = useI18n()
 const props = defineProps<{ show: boolean }>()
 const emit = defineEmits<{ close: []; sent: []; scan: [] }>()
 
-const sendMethod = ref<'auto' | 'lightning' | 'onchain' | 'ecash' | 'ark'>('auto')
+// 'auto' remains in the type for the effectiveMethod logic but is no longer
+// offered as a tab (hidden per operator request 2026-07-22).
+const sendMethod = ref<'auto' | 'lightning' | 'onchain' | 'ecash' | 'fedimint' | 'ark'>('lightning')
 const amount = ref<number>(0)
 const dest = ref('')
 const processing = ref(false)
@@ -142,6 +149,17 @@ function copyText(text: string) {
   navigator.clipboard.writeText(text).catch(() => {})
 }
 
+const tokenQrCanvas = ref<HTMLCanvasElement | null>(null)
+watch(ecashToken, async (token) => {
+  if (!token) return
+  await nextTick()
+  if (!tokenQrCanvas.value) return
+  try {
+    const QRCode = await import('qrcode')
+    await QRCode.toCanvas(tokenQrCanvas.value, token, { width: 220, margin: 1 })
+  } catch { /* QR is a convenience — the copyable text is authoritative */ }
+})
+
 async function send() {
   if (processing.value) return
   if (!amount.value && !isSweep.value) return
@@ -169,6 +187,13 @@ async function send() {
         params: { amount_sats: amount.value },
       })
       ecashToken.value = res.token
+    } else if (method === 'fedimint') {
+      const res = await rpcClient.call<{ token: string }>({
+        method: 'wallet.fedimint-send',
+        params: { amount_sats: amount.value },
+        timeout: 60000,
+      })
+      ecashToken.value = res.token
     } else if (method === 'lightning') {
       if (!dest.value.trim()) { error.value = t('web5.pasteInvoice'); return }
       const res = await rpcClient.call<{ payment_hash: string }>({