chore(client): clarifier le log d'accès — "N rows" → "N triple-rows"

Le journal d'accès compte des triplets RDF (?s ?p ?o), pas des objets métier.
Clarification demandée côté Festipod (les logs "readDoc → N rows" étaient ambigus).
Test access-log mis à jour en conséquence.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

packages/client/src/docs.ts

@@ -93,7 +93,11 @@ export async function sparqlQuery(
   // rows under an identity that should see nothing) can be appended. Skip the
   // rowCount work entirely when the log is off.
   if (accessLogEnabled()) {
-    logAccess("READ", anchor ?? "(no anchor)", label, " → " + rowCount(result) + " rows");
+    // `rows` here are raw RDF triple bindings (the SPARQL `?s ?p ?o` result), NOT
+    // domain objects — one document's entity is spread across several triple rows.
+    // Spell that out so the log isn't mistaken for an object count (the app-level
+    // object/shape count is logged separately by useShapeQuery → dataStats).
+    logAccess("READ", anchor ?? "(no anchor)", label, " → " + rowCount(result) + " triple-rows");
   }
   return result;
 }