Include both expense and receivable links in net settlements

Both settlement dialogs now fetch BOTH expense and receivable entries
to properly link all entries being netted in a settlement.

This ensures that when a user has:
- 2 expenses (80 EUR - castle owes user)
- 1 receivable (1000 EUR - user owes castle)

The net settlement (920 EUR) includes links to all three entries:
^exp-xxx ^exp-xxx ^rcv-xxx

This allows proper tracking of which specific entries were settled.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

static/js/index.js

@@ -1151,15 +1151,26 @@ window.app = Vue.createApp({
       const fiatCurrency = Object.keys(fiatBalances)[0] || null // Get first fiat currency (e.g., 'EUR')
       const fiatAmount = fiatCurrency ? Math.abs(fiatBalances[fiatCurrency]) : 0
 
-      // Fetch unsettled receivable entries for this user
+      // Fetch unsettled entries for this user (BOTH receivables AND expenses for net settlement)
-      let unsettledEntries = []
+      let allEntryLinks = []
       try {
-        const response = await LNbits.api.request(
+        // Fetch receivable entries (user owes castle)
+        const receivableResponse = await LNbits.api.request(
           'GET',
           `/castle/api/v1/users/${userBalance.user_id}/unsettled-entries?entry_type=receivable`,
           this.g.user.wallets[0].adminkey
         )
-        unsettledEntries = response.data.unsettled_entries || []
+        const receivableEntries = receivableResponse.data.unsettled_entries || []
+        allEntryLinks.push(...receivableEntries.map(e => e.link).filter(l => l))
+
+        // Also fetch expense entries (castle owes user) - these are netted in the settlement
+        const expenseResponse = await LNbits.api.request(
+          'GET',
+          `/castle/api/v1/users/${userBalance.user_id}/unsettled-entries?entry_type=expense`,
+          this.g.user.wallets[0].adminkey
+        )
+        const expenseEntries = expenseResponse.data.unsettled_entries || []
+        allEntryLinks.push(...expenseEntries.map(e => e.link).filter(l => l))
       } catch (error) {
         console.warn('Could not fetch unsettled entries:', error)
       }
@@ -1182,8 +1193,7 @@ window.app = Vue.createApp({
         pollIntervalId: null,
         exchangeRate: fiatAmount > 0 ? Math.abs(userBalance.balance) / fiatAmount : this.currentExchangeRate, // Calculate rate from actual amounts or use current rate
         originalCurrency: fiatCurrency || 'BTC',
-        unsettledEntries: unsettledEntries, // Store for linking in settlement
+        entryLinks: allEntryLinks // Include BOTH rcv-xxx AND exp-xxx links for net settlement
-        entryLinks: unsettledEntries.map(e => e.link).filter(l => l) // Extract rcv-xxx links
       }
     },
     async generateSettlementInvoice() {
@@ -1362,15 +1372,26 @@ window.app = Vue.createApp({
       const maxAmountSats = Math.abs(userBalance.balance)
       const maxAmountFiat = Math.abs(fiatAmount)
 
-      // Fetch unsettled expense entries for this user
+      // Fetch unsettled entries for this user (BOTH expenses AND receivables for net settlement)
-      let unsettledEntries = []
+      let allEntryLinks = []
       try {
-        const response = await LNbits.api.request(
+        // Fetch expense entries (castle owes user)
+        const expenseResponse = await LNbits.api.request(
           'GET',
           `/castle/api/v1/users/${userBalance.user_id}/unsettled-entries?entry_type=expense`,
           this.g.user.wallets[0].adminkey
         )
-        unsettledEntries = response.data.unsettled_entries || []
+        const expenseEntries = expenseResponse.data.unsettled_entries || []
+        allEntryLinks.push(...expenseEntries.map(e => e.link).filter(l => l))
+
+        // Also fetch receivable entries (user owes castle) - these are netted in the settlement
+        const receivableResponse = await LNbits.api.request(
+          'GET',
+          `/castle/api/v1/users/${userBalance.user_id}/unsettled-entries?entry_type=receivable`,
+          this.g.user.wallets[0].adminkey
+        )
+        const receivableEntries = receivableResponse.data.unsettled_entries || []
+        allEntryLinks.push(...receivableEntries.map(e => e.link).filter(l => l))
       } catch (error) {
         console.warn('Could not fetch unsettled entries:', error)
       }
@@ -1390,8 +1411,7 @@ window.app = Vue.createApp({
         paymentSuccess: false,
         exchangeRate: maxAmountFiat > 0 ? maxAmountSats / maxAmountFiat : this.currentExchangeRate,
         originalCurrency: fiatCurrency || 'BTC',
-        unsettledEntries: unsettledEntries, // Store for linking in settlement
+        entryLinks: allEntryLinks // Include BOTH exp-xxx AND rcv-xxx links for net settlement
-        entryLinks: unsettledEntries.map(e => e.link).filter(l => l) // Extract exp-xxx links
       }
     },
     async sendLightningPayment() {