feat: 补齐模块接口契约与管理 API 文档

internal/app/identity/service_test.go

@@ -0,0 +1,23 @@
+package identity
+
+import (
+	"context"
+	"errors"
+	"testing"
+)
+
+func TestStubRegisterNotImplemented(t *testing.T) {
+	s := NewStub()
+	_, err := s.Register(context.Background(), RegisterRequest{Source: "self"})
+	if !errors.Is(err, ErrNotImplemented) {
+		t.Fatalf("got %v", err)
+	}
+}
+
+func TestStubHasTalkGrantFalse(t *testing.T) {
+	s := NewStub()
+	ok, err := s.HasTalkGrant(context.Background(), "a", "b")
+	if err != nil || ok {
+		t.Fatalf("ok=%v err=%v", ok, err)
+	}
+}