🐛 fix(ci): resolve Linux CI drift with cross-platform path handling

- Replace hard-coded Windows path separators with filepath.Join() in tests
- Pin golangci-lint to v2.10.1 in CI workflow
- Align CI lint args with local command using ./... target

Author: cocosip

.github/workflows/build-release.yml

@@ -28,8 +28,8 @@ jobs:
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v9
         with:
-          version: latest
-          args: --config .golangci.yml
+          version: v2.10.1
+          args: ./...
 
   test:
     runs-on: ubuntu-latest

docs/go/maintainer/development-tracker.md

@@ -151,6 +151,13 @@ Immediate next tasks:
 
 ### 2026-03-17 Session Update
 
+- Completed: Fixed Linux CI drift in unit tests and pinned the workflow lint toolchain to the same `golangci-lint` version used locally. The follow-import and readiness example-list tests now build expected fixture paths with `filepath.Join(...)` instead of hard-coding Windows separators, the duplicate follow-input test now uses a platform-neutral relative path, and `.github/workflows/build-release.yml` now pins `golangci-lint` to `v2.10.1` with the same `./...` target as the local command.
+- In progress: none.
+- Blockers: none.
+- Next step: keep CI green by committing the current cross-platform test fixes plus the pinned lint version, then resume the next operator-facing slice.
+
+### 2026-03-17 Session Update
+
 - Completed: Deduplicated the shared cleanup/audit hygiene option layer in `internal/app/import_follow.go`. `cleanup-follow-imports` and `audit-follow-imports` now embed one common option struct for shared paths, filters, retention profiles, fail-if-matched, and age-gating; they reuse the same common flag parser, retention-profile application, and pattern/age/target-binding validation while keeping command-specific prune/check flags separate. App tests now also cover audit-side invalid pattern and retention-profile parsing so both command families stay aligned under one helper path.
 - In progress: none.
 - Blockers: none.

internal/app/import_follow_test.go

@@ -471,8 +471,8 @@ func TestListAuditFollowImportsExamples(t *testing.T) {
 	}
 	output := buffer.String()
 	for _, fragment := range []string{
-		"example=daily-audit-text path=testdata\\audit-follow-imports-daily-audit.txt format=text",
-		"example=filtered-audit-json path=testdata\\audit-follow-imports-filtered-audit.json format=json",
+		"example=daily-audit-text path=" + filepath.Join("testdata", "audit-follow-imports-daily-audit.txt") + " format=text",
+		"example=filtered-audit-json path=" + filepath.Join("testdata", "audit-follow-imports-filtered-audit.json") + " format=json",
 		"example_count=2",
 	} {
 		if !strings.Contains(output, fragment) {
@@ -548,8 +548,8 @@ func TestListCleanupFollowImportsExamples(t *testing.T) {
 	}
 	output := buffer.String()
 	for _, fragment := range []string{
-		"example=daily-dry-run-text path=testdata\\cleanup-follow-imports-daily-dry-run.txt format=text",
-		"example=filtered-cleanup-json path=testdata\\cleanup-follow-imports-filtered-cleanup.json format=json",
+		"example=daily-dry-run-text path=" + filepath.Join("testdata", "cleanup-follow-imports-daily-dry-run.txt") + " format=text",
+		"example=filtered-cleanup-json path=" + filepath.Join("testdata", "cleanup-follow-imports-filtered-cleanup.json") + " format=json",
 		"example_count=2",
 	} {
 		if !strings.Contains(output, fragment) {
@@ -1350,7 +1350,7 @@ func TestBuildFollowImportsInputsRejectsDuplicateInputs(t *testing.T) {
 	root := t.TempDir()
 	_, _, err := buildFollowImportsInputs(followImportsOptions{
 		Source:     followImportsWatcherSource,
-		InputPaths: []string{"events.jsonl", ".\\events.jsonl"},
+		InputPaths: []string{"events.jsonl", filepath.Join(".", "events.jsonl")},
 		CWD:        root,
 	})
 	if err == nil {

scripts/readiness-check/main_test.go

@@ -736,9 +736,9 @@ func TestListReadinessExamples(t *testing.T) {
 	}
 	output := buffer.String()
 	for _, fragment := range []string{
-		"example=ci-json path=testdata\\example-ci-success.json format=json",
-		"example=slow-ci-text path=testdata\\example-slow-ci-success.txt format=text",
-		"example=release-warning-failure-text path=testdata\\example-release-warning-failure.txt format=text",
+		"example=ci-json path=" + filepath.Join(readinessExampleDirName, "example-ci-success.json") + " format=json",
+		"example=slow-ci-text path=" + filepath.Join(readinessExampleDirName, "example-slow-ci-success.txt") + " format=text",
+		"example=release-warning-failure-text path=" + filepath.Join(readinessExampleDirName, "example-release-warning-failure.txt") + " format=text",
 		"example_count=3",
 	} {
 		if !strings.Contains(output, fragment) {