perf: optimize data path, indexes and frontend virtualization

- Убран latestCDNRowsBySource; expanded BIRD preview генерируется on-demand
- Batch AS meta updates; миграция perf-индексов 000012
- VirtualPrefixList для preview префиксов; метрики pipeline refresh
- PolitePause для RIPEstat после cache miss

Co-authored-by: Cursor <[email protected]>

internal/store/as_meta_batch.go

@@ -0,0 +1,8 @@
+package store
+
+// ASEntryResolveMetaUpdate is one row for batch AS resolve metadata writes.
+type ASEntryResolveMetaUpdate struct {
+	EntryID     string
+	ASNName     string
+	PrefixCount int64
+}

internal/store/backend.go

@@ -18,6 +18,8 @@ type Backend interface {
 
 	// ListModules returns all modules for a tenant (control plane may paginate in httpapi).
 	ListModules(tenantID string) []*Module
+	// ListModulesPage returns one page of modules (limit capped by caller).
+	ListModulesPage(tenantID, cursor string, limit int) ([]*Module, string, bool)
 	GetModule(tenantID, moduleID string) (*Module, error)
 	CreateModule(tenantID string, in *Module) (*Module, error)
 	UpdateModule(tenantID, moduleID string, patch *ModulePatch) (*Module, error)
@@ -34,6 +36,7 @@ type Backend interface {
 	DeleteASEntry(tenantID, moduleID, entryID string) error
 	// UpdateASEntryResolveMeta записывает имя AS, число объявленных префиксов и время успешного резолва (pipeline).
 	UpdateASEntryResolveMeta(tenantID, moduleID, entryID string, asnName string, prefixCount int64, resolvedAt time.Time) error
+	UpdateASEntryResolveMetaBatch(tenantID, moduleID string, updates []ASEntryResolveMetaUpdate, resolvedAt time.Time) error
 
 	ListDomainEntries(tenantID, moduleID string) ([]*DomainEntry, error)
 	CreateDomainEntry(tenantID, moduleID string, in *DomainEntry) (*DomainEntry, error)

internal/store/memory_crud.go

@@ -301,6 +301,15 @@ func (m *Memory) UpdateASEntryResolveMeta(tenantID, moduleID, entryID string, as
 	return nil
 }
 
+func (m *Memory) UpdateASEntryResolveMetaBatch(tenantID, moduleID string, updates []ASEntryResolveMetaUpdate, resolvedAt time.Time) error {
+	for _, u := range updates {
+		if err := m.UpdateASEntryResolveMeta(tenantID, moduleID, u.EntryID, u.ASNName, u.PrefixCount, resolvedAt); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
 func (m *Memory) DeleteASEntry(tenantID, moduleID, entryID string) error {
 	m.mu.Lock()
 	defer m.mu.Unlock()