fix(scanner): verify coverage receipts and scan strength

Co-Authored-By: heihutu <heihutu@gmail.com>
Co-Authored-By: zhi22915 <qiuzgang@gmail.com>

crates/scanner/src/scanner_folder/tests.rs

@@ -346,6 +346,9 @@ async fn build_test_scanner() -> (FolderScanner, std::path::PathBuf) {
             refresh_failed: false,
         },
         pending_heals_changed: false,
+        coverage_frontier: None,
+        resume_frontier: None,
+        coverage_gap: false,
         pending_size_reconciliation_keys: HashSet::new(),
         pending_size_reconciliation_scopes: HashSet::new(),
         pending_size_reconciliation_truncated: false,