Avoid unneccessary compaction for csr

[zhanglei1949]

There are at least two scenerios where we don't actually need a compaction before dump.

• Newly created vertex/edge Table, bulk loaded, no per-vertex/per-edge insertion performed.
• Open Database in AP mode and start TP service, even no changes are made to the database.

[github-actions]

🤖 Auto-triage: linked as sub-issue of #272 — Refine checkpoint mechanism (confidence: high).

Reason: The issue is about avoiding unnecessary compaction before dump, which falls under the checkpoint/persistence layer mechanics tracked by #272.

If this is wrong, please unlink and re-assign — your correction improves this bot.