fix(scanner): consume raw page owner resume oracle (#7391)

Treat persisted raw page owner entries as a validated set, not a read_dir-order prefix, so restart scans can consume committed owner pages without recounting them against the raw enumeration budget. Commit checkpointed partial pages, validate owner parent/generation/digests before the skip oracle, and fail closed on duplicate/corrupt page state.

Extend the real scanner restart driver to enforce fixed raw-entry and object budgets across fresh OS processes, and report owner-index coverage in each worker round.

Co-authored-by: zhi22915 <qiuzgang@gmail.com>

crates/scanner/tests/lifecycle_integration_test.rs

@@ -2552,7 +2552,7 @@ mod serial_tests {
                 .expect("Failed to upload multipart part");
             completed.push(CompletePart {
                 part_num: idx + 1,
-                etag: part.etag.clone(),
+                etag: part.etag,
                 ..Default::default()
             });
             offset += part_size;