fix: scheduler empty-resreq JOB_UPDATE crash (bug-1904); xcecli jobs list rejection text (bug-1906)

bug-1904: both scheduler JOB_UPDATE paths parsed "" as-is:
parse_resreq() returns success with a PRIMARY container whose body is
NULL, and apply_job_task_count() wrote through it. Use ingest's default
("type == any") instead.

bug-1906: xcecli jobs list sent local selection-parse errors through
ExtractErrorMessage, which strips brackets and the quoted selection;
report them as written.

Also logs bug-1905 (xcecd_virtual ignores kill of a running job). All
three found by job-array-one-based-index task 10.2's live REST flow.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

src/frontend/xcecli/cmd/jobs/list.go

@@ -99,8 +99,9 @@ func (jq *JobsQuerier) RunJobsList() error {
 	// Get filter string
 	filterStr, err := jq.filter.HandleJobFilter("")
 	if err != nil {
-		errMsg := request.ExtractErrorMessage(err)
-		return fmt.Errorf("failed to get parameter: [%s]", errMsg)
+		// A local parse error: report it as written (it names the
+		// rejected selection); ExtractErrorMessage strips brackets.
+		return fmt.Errorf("failed to get parameter: [%v]", err)
 	} else if filterStr != "" {
 		params["filter"] = filterStr
 	}
@@ -190,8 +191,9 @@ func (jq *JobsQuerier) runArrayJobStats(serverInfo *config.APIServerInfo, apiCli
 
 	filterStr, err := jq.filter.HandleJobFilter("array_stats")
 	if err != nil {
-		errMsg := request.ExtractErrorMessage(err)
-		return fmt.Errorf("failed to get parameter: [%s]", errMsg)
+		// A local parse error: report it as written (it names the
+		// rejected selection); ExtractErrorMessage strips brackets.
+		return fmt.Errorf("failed to get parameter: [%v]", err)
 	}
 
 	if filterStr != "" {

src/frontend/xcecli/cmd/jobs/list_test.go

@@ -0,0 +1,51 @@
+package jobs
+
+import (
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"xcecli/config"
+)
+
+// newTestQuerier returns a JobsQuerier whose config points at an unreachable
+// API server: a rejected selection must be reported before any request.
+func newTestQuerier(t *testing.T, args ...string) *JobsQuerier {
+	t.Helper()
+	cm := config.NewConfigManagerWithPath(filepath.Join(t.TempDir(), "config.json"))
+	cfg := &config.Config{APIServerInfo: config.APIServerInfoArray{{URL: "http://127.0.0.1:1"}}}
+	if err := cm.SaveConfig(cfg); err != nil {
+		t.Fatalf("save config: %v", err)
+	}
+	jq := NewJobsQuerier(cm)
+	if err := jq.ParseCmdArgs(nil, args); err != nil {
+		t.Fatalf("ParseCmdArgs: %v", err)
+	}
+	return jq
+}
+
+// A rejected selection is reported as written, naming the selection and
+// keeping the [k] syntax in the message (Requirement 5.12; the list path
+// used to strip every bracket and everything before the last ": ").
+func TestRunJobsListReportsRejectedSelectionVerbatim(t *testing.T) {
+	cases := []struct {
+		sel  string
+		want []string
+	}{
+		{"1-0-1700000000-0[40000]", []string{"'1-0-1700000000-0[40000]'", "at most 32767"}},
+		{"1-0-1700000000-0[1,3]", []string{"'1-0-1700000000-0[1,3]'", "<array-id>[k]"}},
+		{"1-0-1700000000-5[1]", []string{"'1-0-1700000000-5[1]'", "not an array identity"}},
+		{"garbage", []string{"'garbage'", "<array-id>[k] or <array-id>[a-b]"}},
+	}
+	for _, tc := range cases {
+		err := newTestQuerier(t, tc.sel).RunJobsList()
+		if err == nil {
+			t.Fatalf("%s: want rejection, got nil", tc.sel)
+		}
+		for _, w := range tc.want {
+			if !strings.Contains(err.Error(), w) {
+				t.Errorf("%s: error %q does not contain %q", tc.sel, err.Error(), w)
+			}
+		}
+	}
+}