chore: sweep Kimi mentions from comments and notes

tests/emitted-attribution.test.cjs

@@ -202,8 +202,7 @@ test('a trailing-slash source entry matches by prefix, segment-aware', () => {
   assert.equal(sourceSatisfiedBy('a/b.md', new Set(['a/b.md'])), 'a/b.md');
   assert.equal(sourceSatisfiedBy('a/b.md', new Set(['a/b.md.bak'])), null);
 
-  // No shipped provenance rule declares a prefix source any more (the Kimi root agent
-  // that did was removed with its runtime), so drive the REAL diffEmitted against a
+  // No shipped provenance rule declares a prefix source any more, so drive the REAL diffEmitted against a
   // synthetic rule by swapping attributeEmittedPath in a freshly loaded emitted-diff.
   const provPath = require.resolve('./helpers/emitted-provenance.cjs');
   const diffPath = require.resolve('./helpers/emitted-diff.cjs');
@@ -1622,11 +1621,11 @@ test('formatReport truncation is exact at limit-1 / limit / limit+1', () => {
 // ─── Independence + purity ───────────────────────────────────────────────────
 
 test('the differential covers every runtime present in either manifest', () => {
-  const baseline = { claude: { [WORKFLOW_KEY]: 'a' }, kimi: { [WORKFLOW_KEY]: 'a' } };
+  const baseline = { claude: { [WORKFLOW_KEY]: 'a' }, cursor: { [WORKFLOW_KEY]: 'a' } };
   const current = { claude: { [WORKFLOW_KEY]: 'b' }, opencode: { [WORKFLOW_KEY]: 'c' } };
   const r = diffEmitted({ baseline, current, changedPaths: [] });
   const seen = new Set([...r.unattributable, ...r.attributed, ...r.removed].map((x) => x.runtime));
-  assert.deepEqual([...seen].sort(), ['claude', 'kimi', 'opencode'],
+  assert.deepEqual([...seen].sort(), ['claude', 'cursor', 'opencode'],
     'a runtime present on only one side must still be evaluated');
 });