add updated_timestamp for ETL engine watermark mechanism & dldb err fix

[hsballoon]

…sg refine fix

Summary by CodeRabbit

• Chores
  • Updated the data platform SDK to version 0.4.0.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 59d29fdb-7e1d-43d8-9d20-bb7a3ffc74c2

📥 Commits

Reviewing files that changed from the base of the PR and between 49c5f25 and 34e7319.

📒 Files selected for processing (1)

• requirements-cloud.txt

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📝 Walkthrough

Walkthrough

The pull request updates the pinned wt-data-platform-sdk Git dependency from v0.3.0 to v0.4.0 in requirements-cloud.txt.

Changes

SDK dependency update

Layer / File(s)	Summary
Update SDK version requirements-cloud.txt	The wt-data-platform-sdk Git dependency now uses tag v0.4.0 instead of v0.3.0.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Possibly related PRs

• AI45Lab/SAfactory#33: Updates the same wt-data-platform-sdk dependency to another Git tag.
• AI45Lab/SAfactory#34: Updates the pinned wt-data-platform-sdk version.
• AI45Lab/SAfactory#40: Updates the same dependency to a successive SDK release.

Suggested reviewers: wangxuhongcn

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Title check	⚠️ Warning	The title describes ETL and DLDB changes, but the changeset only updates the pinned wt-data-platform-sdk dependency from v0.3.0 to v0.4.0.	Rename the pull request to describe the wt-data-platform-sdk dependency update, or include the changes described by the current title.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[two-tiger]

LGTM