test: pin scan_extractor_version at the start of ev-sensitive tests

The extractor/force-rescan tests assert manifest stamps against the
default version (1), but the setting lives in the SHARED dev DB — any
prior run (or a manual admin-UI bump) can leave it at 2, failing every
stamp assertion through no fault of the code. Each ev-sensitive test
now pins the setting to 1 at start and restores 1 on cleanup; proven
against a deliberately bumped setting (tests pass, row restored).

cmd/server/tests/extractor_version_test.go

@@ -74,6 +74,7 @@ func TestExtractorVersionReextract(t *testing.T) {
 
 	ctx := context.Background()
 	admin, _ := moveTestAdminID(t, setup)
+	pinExtractorVersionOne(t, setup)
 	libID, folder := createTypedTestLibrary(t, setup, fmt.Sprintf("Test EV Library %d", time.Now().UnixNano()), "ebooks")
 	t.Cleanup(func() { deleteLibraries(t, setup, libID) })
 
@@ -142,6 +143,7 @@ func TestExtractorVersionMultifile(t *testing.T) {
 	t.Cleanup(func() { _ = setup.Close() })
 
 	admin, _ := moveTestAdminID(t, setup)
+	pinExtractorVersionOne(t, setup)
 	libID, folder := audioTestLibrary(t, setup, fmt.Sprintf("Test EV Audio %d", time.Now().UnixNano()))
 	t.Cleanup(func() { deleteLibraries(t, setup, libID) })
 

cmd/server/tests/phase13_test.go

@@ -28,6 +28,17 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
+// pinExtractorVersionOne pins the SHARED dev DB's extractor version to
+// the default 1 for the test's duration. Prior interrupted runs can
+// leave it bumped (an early test failure aborts before its restore
+// cleanup registers), and every stamp assertion in these tests assumes
+// the default. The cleanup restores 1 — the repo's steady state.
+func pinExtractorVersionOne(t *testing.T, setup *TestServerSetup) {
+	t.Helper()
+	setExtractorVersion(t, setup, 1)
+	t.Cleanup(func() { setExtractorVersion(t, setup, 1) })
+}
+
 // forceScanTestFolder runs a FORCE scan over one folder.
 func forceScanTestFolder(t *testing.T, setup *TestServerSetup, adminID pgtype.UUID, folder string) {
 	t.Helper()
@@ -45,6 +56,7 @@ func TestForceRescanMultifileSidecarApply(t *testing.T) {
 
 	ctx := context.Background()
 	admin, _ := moveTestAdminID(t, setup)
+	pinExtractorVersionOne(t, setup)
 	libID, folder := audioTestLibrary(t, setup, fmt.Sprintf("Test Force Rescan %d", time.Now().UnixNano()))
 	t.Cleanup(func() { deleteLibraries(t, setup, libID) })
 
@@ -82,6 +94,7 @@ func TestForceRescanSingleFileSidecarReapply(t *testing.T) {
 	t.Cleanup(func() { _ = setup.Close() })
 
 	admin, _ := moveTestAdminID(t, setup)
+	pinExtractorVersionOne(t, setup)
 	libID, folder := createTypedTestLibrary(t, setup, fmt.Sprintf("Test Force Single %d", time.Now().UnixNano()), "ebooks")
 	t.Cleanup(func() { deleteLibraries(t, setup, libID) })