chore(master): release synapse-sdk 0.40.4

[FilOzzy]

📦 Release Preparation

0.40.4 (2026-04-20)

Features

• synapse-sdk: expose paginated client dataset queries in WarmStorageService (#717) (0add8e0)
• use PDPVerifier.findPieceIdsByCid for efficient CID→ID lookups (#718) (3ac48a9)

Bug Fixes

• capture error cause in serialisation (#727) (d0f3372)
• fix out of gas problems with getClientDataSets (#734) (c49c18e)
• normalize empty outputs for pdp-verifier (#723) (187e8a4)
• remove custom fetch for pulled POSTs (#732) (9b63e7e)

Chores

• update msw package version to 2.12.14 in workspace and mock service worker files (4865ff7)

---

🚀 How to Release

1. Review the changelog and version bump in this PR
2. Merge this PR to trigger the release
3. After merging, the workflow will:
   • Create a GitHub release with tag ${version}
   • Publish to npm automatically
4. Wait until the workflow is complete before merging another release PR

⚠️ Note: The release has NOT been created yet. It will only be created after you merge this PR.

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Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	synapse-dev	4d5a04a	Commit Preview URL Branch Preview URL	Apr 20 2026, 05:19 PM

[socket-security]

All alerts resolved. Learn more about Socket for GitHub.

This PR previously contained dependency changes with security issues that have been resolved, removed, or ignored.

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[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	p-defer@​4.0.1
	iso-web@​2.2.0
	playwright-test@​14.1.13

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[FilOzzy]

🤖 Created releases:

• synapse-sdk-v0.40.4

🌻