fix(repo): centralize repository-scoped authorization (#39063)

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

services/packages/packages_test.go

@@ -0,0 +1,44 @@
+// Copyright 2026 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package packages
+
+import (
+	"testing"
+
+	"gitea.dev/models/db"
+	"gitea.dev/models/organization"
+	packages_model "gitea.dev/models/packages"
+	repo_model "gitea.dev/models/repo"
+	unit_model "gitea.dev/models/unit"
+	"gitea.dev/models/unittest"
+	user_model "gitea.dev/models/user"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestMain(m *testing.M) {
+	unittest.MainTest(m)
+}
+
+func TestUnlinkFromRepositoryRequiresTargetRepoAdmin(t *testing.T) {
+	assert.NoError(t, unittest.PrepareTestDatabase())
+	repo := &repo_model.Repository{OwnerID: 3, OwnerName: "org3", Name: "package-repo", LowerName: "package-repo", IsPrivate: true}
+	require.NoError(t, db.Insert(t.Context(), repo))
+	require.NoError(t, db.Insert(t.Context(),
+		&repo_model.RepoUnit{RepoID: repo.ID, Type: unit_model.TypeCode},
+		&repo_model.RepoUnit{RepoID: repo.ID, Type: unit_model.TypePackages},
+		&organization.TeamRepo{OrgID: repo.OwnerID, TeamID: 14, RepoID: repo.ID},
+	))
+	pkg := &packages_model.Package{OwnerID: repo.OwnerID, RepoID: repo.ID, Type: packages_model.TypeGeneric, Name: "package", LowerName: "package"}
+	require.NoError(t, db.Insert(t.Context(), pkg))
+	doer := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 28})
+
+	assert.Error(t, UnlinkFromRepository(t.Context(), pkg, doer))
+	assert.Equal(t, repo.ID, unittest.AssertExistsAndLoadBean(t, &packages_model.Package{ID: pkg.ID}).RepoID)
+
+	require.NoError(t, db.Insert(t.Context(), &organization.TeamRepo{OrgID: repo.OwnerID, TeamID: 12, RepoID: repo.ID}))
+	require.NoError(t, UnlinkFromRepository(t.Context(), pkg, doer))
+	assert.Zero(t, unittest.AssertExistsAndLoadBean(t, &packages_model.Package{ID: pkg.ID}).RepoID)
+}