验证(08-23-isolated-backup-restore-drill): 固化隔离恢复runner合同

.gitignore

@@ -27,6 +27,9 @@ artifacts/
 # Local sensitive business samples; never commit originals
 /input/
 
+# Private off-host restore render inputs and site-specific candidates
+/.restore-drill-private/
+
 # Vitest coverage artifacts
 server/coverage
 server/.vitest