🧪 test(kebab-app): assert chunk_count + asset_count in schema_report (fb-27)

Plug coverage hole flagged in code review — test 1 was asserting only
doc_count + last_ingest_at, leaving count_summary's chunk_count and
asset_count queries un-pinned.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

crates/kebab-app/tests/schema_report.rs

@@ -68,6 +68,16 @@ fn schema_report_reflects_freshly_ingested_kb() {
         "last_ingest_at must be set after ingest: {:?}",
         schema.stats
     );
+    assert!(
+        schema.stats.chunk_count >= 2,
+        "expected ≥2 chunks (a.md + b.md): {:?}",
+        schema.stats
+    );
+    assert_eq!(
+        schema.stats.asset_count, 2,
+        "expected 2 assets (a.md + b.md): {:?}",
+        schema.stats
+    );
 }
 
 #[test]