docs(lint): stop re-citing an issue number that resolves in neither repo

The #11385 narrowing comment added by this PR cited `#10262` for the fan-out
block. Measured on the REST API with a token: `#10262` answers HTTP 404 in both
objectstack-ai/objectstack and objectstack-ai/objectui; lit control on the same
instrument in the same act, `#7079` answers 200 in both. So the number points at
nothing and this PR should not add a fresh pointer to it.

The comment now names the block instead, and says what was measured. The nine
pre-existing `#10262` citations in this file are left exactly as found — they
predate this card and correcting them is not its scope.

Claude-Session: https://claude.ai/code/session_01JbZnqu8bt6YqfJsr9vaFb3
Co-authored-by: Claude <noreply@anthropic.com>

Author: claude

packages/lint/src/lint-liveness-properties.test.ts

@@ -914,7 +914,11 @@ describe('lintLivenessProperties', () => {
     });
 
     // ⚠️ THE FIELD CASE LOST ITS SUBJECT (#19187), and unlike the fan-out
-    // (#10262) the code path went with it: `field.relatedListFilter` was the
+    // block at the bottom of this file the code path went with it (that block's
+    // own `#10262` citation is left as found; the number resolves in NEITHER
+    // objectstack nor objectui — measured, with `#7079` answering 200 on the
+    // same instrument — so this comment names the block rather than re-citing
+    // it): `field.relatedListFilter` was the
     // ONE `authorWarn` row on `field.json` at any depth, so flipping it `live`
     // empties `loadWarnMap(dir, 'field')` and `lintLivenessProperties` skips the
     // whole field loop on `if (fieldWarn.size > 0)` — the `if (!isRecord(field))