report: hierarchical reference IDs (citable tags) on every check

tests/lib/reporting/aggregate.mjs

@@ -43,7 +43,22 @@ export function sumCounts(sequences) {
 }
 
 /** Build the full report object the reporters consume. Pure; timestamps passed in. */
+/**
+ * Stable hierarchical reference IDs so a reviewer can cite a specific check
+ * (e.g. "3.5 looks wrong"). Each sequence gets a section number; each case gets
+ * `<section>.<n>`. Pre-set refs (e.g. a deeper source.dimension.check from the
+ * live runner) are preserved.
+ */
+export function assignRefs(sequences) {
+  sequences.forEach((seq, i) => {
+    seq.ref = seq.ref || String(i + 1);
+    (seq.cases || []).forEach((c, j) => { c.ref = c.ref || `${seq.ref}.${j + 1}`; });
+  });
+  return sequences;
+}
+
 export function buildReport({ sequences = [], startedAt, finishedAt, target = '', env = {} } = {}) {
+  assignRefs(sequences);
   const { totals, byStatus } = sumCounts(sequences);
   return {
     schema: 'graphdone.unified-report/1',

tests/lib/reporting/aggregate.test.mjs

@@ -43,6 +43,17 @@ test('sumCounts totals + status tally', () => {
   assert.equal(byStatus.failed, 1);
 });
 
+test('buildReport assigns hierarchical refs (section + section.case), preserving presets', () => {
+  const r = buildReport({ sequences: [
+    { title: 'A', status: 'passed', counts: { passed: 2 }, cases: [{ title: 'x', status: 'passed' }, { title: 'y', status: 'passed' }] },
+    { ref: '2.4', title: 'B', status: 'warn', counts: { warned: 1 }, cases: [{ ref: '2.4.1', title: 'z', status: 'warn' }] },
+  ] });
+  assert.equal(r.sequences[0].ref, '1');
+  assert.deepEqual(r.sequences[0].cases.map((c) => c.ref), ['1.1', '1.2']);
+  assert.equal(r.sequences[1].ref, '2.4');        // preset section ref preserved
+  assert.equal(r.sequences[1].cases[0].ref, '2.4.1'); // preset case ref preserved
+});
+
 test('buildReport rolls up status + duration', () => {
   const r = buildReport({
     sequences: [{ status: 'passed', counts: { passed: 2 } }, { status: 'warn', counts: { warned: 1 } }],

tests/lib/reporting/html.mjs

@@ -21,6 +21,7 @@ function caseHtml(c) {
   const err = c.error ? `<pre class="err">${esc(c.error)}</pre>` : '';
   return `<div class="case ${esc(c.status)}">
     <span class="dot" style="background:${COLOR[c.status] || '#888'}"></span>
+    ${c.ref ? `<code class="ref" title="cite this check">${esc(c.ref)}</code>` : ''}
     <span class="ctitle">${esc(c.title)}</span>
     ${c.durationMs != null ? `<span class="cdur">${(c.durationMs / 1000).toFixed(1)}s</span>` : ''}
     ${err}${atts ? `<div class="atts">${atts}</div>` : ''}
@@ -37,6 +38,7 @@ function seqHtml(seq, i) {
   return `<details class="seq ${esc(seq.status)}" ${seq.status === 'failed' ? 'open' : ''}>
     <summary>
       <span class="badge" style="background:${COLOR[seq.status] || '#888'}">${ICON[seq.status] || ''} ${esc(seq.status)}</span>
+      ${seq.ref ? `<code class="sref" title="section ref">§${esc(seq.ref)}</code>` : ''}
       <span class="sname">${esc(seq.title || seq.id)}</span>
       <span class="counts">${c.passed || 0}✓ ${c.failed || 0}✗ ${c.warned || 0}⚠ ${c.skipped || 0}⏭</span>
       ${seq.durationMs != null ? `<span class="sdur">${(seq.durationMs / 1000).toFixed(1)}s</span>` : ''}
@@ -70,6 +72,8 @@ h1{font-size:22px;margin:0 0 4px;display:flex;align-items:center;gap:10px}
 .seq summary{display:flex;align-items:center;gap:12px;cursor:pointer;list-style:none;padding:8px 0}
 .seq summary::-webkit-details-marker{display:none}
 .badge{padding:2px 10px;border-radius:999px;font-size:11px;font-weight:700;color:#0b1220;text-transform:uppercase}
+.sref{background:#1e293b;color:#7dd3fc;border:1px solid #334155;border-radius:5px;padding:1px 7px;font-size:12px;font-weight:700;font-variant-numeric:tabular-nums}
+.ref{background:#0b1220;color:#fbbf24;border:1px solid #334155;border-radius:5px;padding:0 6px;font-size:11px;font-weight:700;margin-right:8px;font-variant-numeric:tabular-nums;user-select:all}
 .sname{font-weight:600;flex:1}
 .counts{font-variant-numeric:tabular-nums;color:#cbd5e1;font-size:12px}
 .sdur,.cdur{color:#64748b;font-size:12px}