layer1: add namespace bootstrap dispatch step 26

doc/thinking/2026-04-26-namespace-manager-step26.md

@@ -0,0 +1,17 @@
+# 2026-04-26 — NamespaceManager rewrite, step 26
+
+## Цель шага
+
+Добавить единый startup bridge для manager: bootstrap model + dispatch в subscriber-ы.
+
+## Что меняем
+
+1. В `NamespaceManager` добавляем `BootstrapAndDispatch()`.
+2. Helper сначала делает `Bootstrap()`, потом вызывает `DispatchAdd()` по каждому namespace.
+3. Ошибки агрегируются и не останавливают остальные namespace.
+4. Добавляем unit tests на success и partial-failure.
+
+## Что НЕ меняем
+
+- не подключаем helper к production startup path;
+- не меняем watcher behavior.

pkg/utils/namespace_manager.go

@@ -2,6 +2,7 @@ package utils
 
 import (
 	"context"
+	"errors"
 	"sort"
 	"sync"
 	"time"
@@ -51,6 +52,7 @@ type NamespaceManager interface {
 	SnapshotRecords() []NamespaceRecord
 	Get(name string) (NamespaceRecord, bool)
 	Bootstrap(namespaces []string, source NamespaceSource, observedAt time.Time) []NamespaceRecord
+	BootstrapAndDispatch(ctx context.Context, namespaces []string, source NamespaceSource, observedAt time.Time) ([]NamespaceRecord, error)
 	Subscribe(subscriber NamespaceSubscriber)
 	SnapshotSubscribers() []string
 	Upsert(event NamespaceEvent) NamespaceRecord
@@ -107,6 +109,27 @@ func (m *inMemoryNamespaceManager) Bootstrap(namespaces []string, source Namespa
 	return records
 }
 
+func (m *inMemoryNamespaceManager) BootstrapAndDispatch(ctx context.Context, namespaces []string, source NamespaceSource, observedAt time.Time) ([]NamespaceRecord, error) {
+	records := m.Bootstrap(namespaces, source, observedAt)
+	var joinErr error
+	for _, record := range records {
+		updatedRecord, ok, err := m.DispatchAdd(ctx, record.Name)
+		if ok {
+			record = updatedRecord
+		}
+		if err != nil {
+			joinErr = errors.Join(joinErr, err)
+		}
+		for index := range records {
+			if records[index].Name == record.Name {
+				records[index] = record
+				break
+			}
+		}
+	}
+	return records, joinErr
+}
+
 func (m *inMemoryNamespaceManager) SnapshotSubscribers() []string {
 	m.mu.RLock()
 	defer m.mu.RUnlock()

pkg/utils/namespace_manager_test.go

@@ -179,6 +179,50 @@ func TestNamespaceManagerBootstrap(t *testing.T) {
 	}
 }
 
+func TestNamespaceManagerBootstrapAndDispatch(t *testing.T) {
+	manager := NewNamespaceManager()
+	router := &testNamespaceSubscriber{name: "router"}
+	builder := &testNamespaceSubscriber{name: "buildermgr"}
+	manager.Subscribe(router)
+	manager.Subscribe(builder)
+
+	records, err := manager.BootstrapAndDispatch(context.Background(), []string{"tenant-b", "tenant-a"}, NamespaceSourceBackfill, time.Now().UTC())
+	if err != nil {
+		t.Fatalf("expected bootstrap and dispatch success: %v", err)
+	}
+	if len(records) != 2 {
+		t.Fatalf("expected 2 records, got %d", len(records))
+	}
+	if router.addCalls != 2 || builder.addCalls != 2 {
+		t.Fatalf("expected both subscribers to be called for each namespace")
+	}
+	if records[0].Phase != NamespacePhaseActive || records[1].Phase != NamespacePhaseActive {
+		t.Fatalf("expected active records after bootstrap dispatch")
+	}
+}
+
+func TestNamespaceManagerBootstrapAndDispatchFailure(t *testing.T) {
+	manager := NewNamespaceManager()
+	router := &testNamespaceSubscriber{name: "router", addErr: errors.New("router failed")}
+	builder := &testNamespaceSubscriber{name: "buildermgr"}
+	manager.Subscribe(router)
+	manager.Subscribe(builder)
+
+	records, err := manager.BootstrapAndDispatch(context.Background(), []string{"tenant-a"}, NamespaceSourceBackfill, time.Now().UTC())
+	if err == nil {
+		t.Fatalf("expected bootstrap dispatch failure")
+	}
+	if len(records) != 1 {
+		t.Fatalf("expected single record result")
+	}
+	if records[0].Phase != NamespacePhaseFailed {
+		t.Fatalf("expected failed phase after subscriber error, got %s", records[0].Phase)
+	}
+	if records[0].RegisteredParts["router"].LastError != "router failed" {
+		t.Fatalf("expected router failure to be stored")
+	}
+}
+
 func TestNamespaceManagerPartStateHelpers(t *testing.T) {
 	manager := NewNamespaceManager()
 	manager.Upsert(NamespaceEvent{Type: NamespaceEventAdd, Name: "tenant-a", Source: NamespaceSourceWatcher})