Enhance database management and synchronization features

- Added new backup and restore functionality for JSON and SQLite database formats.
- Implemented notification settings for low balance alerts and sync digests in the settings page.
- Updated database schema to include new columns for balance alert thresholds and notification preferences.
- Refactored synchronization logic to provide detailed summaries and improved error handling.
- Enhanced user interface for managing accounts and settings, including new input fields for balance alerts.
- Improved sync log display to include summary information for better tracking of synchronization results.

server/adapters/billmanager/sync.js

@@ -35,6 +35,8 @@ export async function syncFromBillmanager(account, db, opts = {}) {
   const { tariffItems = [], slist = {} } = tariffResult || {}
 
   let vpsCount = 0
+  /** @type {{ added: { id: string, label: string }[], updated: { id: string, label: string, fields: string[] }[], paymentsAdded: number }} */
+  const syncSummary = { added: [], updated: [], paymentsAdded: 0 }
   if (fetchVpsPayments) {
   const vpsInsertSql = `INSERT INTO vps (id, ip, ipv6, additionalIps, dns, providerId, providerAccountId, country, city, datacenter, os, vcpu, ramGb, diskGb, diskType, virtualization, bandwidthTb, sshPort, rootUser, purpose, environment, project, projectId, monitoringEnabled, backupEnabled, status, tariffType, currency, dailyRate, monthlyRate, createdAt, paidUntil, notes, userOverrides)
     VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`
@@ -43,6 +45,12 @@ export async function syncFromBillmanager(account, db, opts = {}) {
 
   const SYNC_UPDATE_FIELDS = ['country', 'city', 'datacenter', 'os', 'notes', 'status', 'tariffType', 'currency', 'dailyRate', 'monthlyRate', 'paidUntil']
 
+  const normVal = (v) => {
+    if (v == null || v === '') return ''
+    if (typeof v === 'number') return Number.isFinite(v) ? String(v) : ''
+    return String(v)
+  }
+
   for (const item of vdsItems) {
     const vps = mapVdsToVps(item, providerId, accountId)
     const id = `vps-bm-${accountId}-${vps.externalId}`
@@ -82,6 +90,14 @@ export async function syncFromBillmanager(account, db, opts = {}) {
           merged[f] = existing[f]
         }
       }
+      const compareFields = ['ip', 'ipv6', 'dns', ...SYNC_UPDATE_FIELDS]
+      const changedFields = compareFields.filter(
+        (f) => normVal(merged[f]) !== normVal(existing[f]),
+      )
+      if (changedFields.length > 0) {
+        const label = merged.dns || merged.ip || existing.id
+        syncSummary.updated.push({ id: existing.id, label, fields: changedFields })
+      }
       db.run(vpsUpdateSql,
         merged.ip,
         merged.ipv6,
@@ -101,6 +117,8 @@ export async function syncFromBillmanager(account, db, opts = {}) {
         existing.id,
       )
     } else {
+      const label = vps.dns || vps.ip || id
+      syncSummary.added.push({ id, label })
       db.run(vpsInsertSql,
         id,
         vps.ip,
@@ -159,6 +177,7 @@ export async function syncFromBillmanager(account, db, opts = {}) {
     db.run(paymentInsertSql, id, payment.type, payment.date, payment.amount, payment.currency, payment.providerAccountId, payment.vpsId, note)
     existingPayments.add(note)
     paymentsCount++
+    syncSummary.paymentsAdded += 1
   }
   }
 
@@ -229,5 +248,8 @@ export async function syncFromBillmanager(account, db, opts = {}) {
   }
   }
 
-  return { vpsCount, paymentsCount, tariffsCount, newTariffs, balance: dashboardInfo }
+  if (!fetchVpsPayments) {
+    syncSummary.tariffsOnly = true
+  }
+  return { vpsCount, paymentsCount, tariffsCount, newTariffs, balance: dashboardInfo, syncSummary }
 }