fix(store): exact match for DAG name lookup in listRoot (#1490)

* **Bug Fixes**
* Fixed filtering logic for DAG runs to require exact name matching
instead of substring matching, refining which results are returned when
filtering is applied.

internal/persistence/filedagrun/store.go

@@ -500,7 +500,7 @@ func (store *Store) listRoot(_ context.Context, include string) ([]DataRoot, err
 
 	var roots []DataRoot
 	for _, dir := range rootDirs {
-		if include != "" && !strings.Contains(dir, include) {
+		if include != "" && dir != include {
 			continue
 		}
 		if fileutil.IsDir(filepath.Join(store.baseDir, dir)) {

internal/persistence/filedagrun/store_test.go

@@ -314,6 +314,22 @@ func TestListRoot(t *testing.T) {
 	}
 }
 
+// TestListRootExactMatch verifies that listRoot does exact matching, not substring matching.
+// Regression test for issue #1473.
+func TestListRootExactMatch(t *testing.T) {
+	t.Parallel()
+
+	tmpDir := t.TempDir()
+	require.NoError(t, os.MkdirAll(filepath.Join(tmpDir, "go"), 0750))
+	require.NoError(t, os.MkdirAll(filepath.Join(tmpDir, "go_fasthttp"), 0750))
+
+	store := &Store{baseDir: tmpDir}
+	roots, err := store.listRoot(context.Background(), "go")
+	require.NoError(t, err)
+	require.Len(t, roots, 1, "should only match 'go', not 'go_fasthttp'")
+	assert.Equal(t, "go", roots[0].prefix)
+}
+
 func TestListRootEmptyDirectory(t *testing.T) {
 	t.Parallel()