Cover stale-file recovery and bulk folder operations

Document exact file revision provenance and add real Obsidian scenarios for stale files after restart, parent-folder renames, and parent-folder deletion. Characterise replication queue delays during repeated writes to one document.

Companion to Commonlib c0a84a4. Validation used its packed artefact; the local file dependency remains uncommitted until a published Commonlib version is available.

test/e2e-obsidian/scripts/run-focused.ts

@@ -25,6 +25,8 @@ const focusedScenarios = new Set([
     "p2p-setup-uri-workflow",
     "partial-startup-file-failure",
     "startup-scan",
+    "stale-file-restart",
+    "folder-batch",
     "setup-uri-workflow",
     "two-vault-sync",
     "security-seed-reconnect",