chore(master): release synapse-sdk 1.2.1

[FilOzzy]

📦 Release Preparation

1.2.1 (2026-08-26)

Bug Fixes

• deprecate piece metadata getters (#938) (4d15951)

---

🚀 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.

[pkg-pr-new]

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npm i https://pkg.pr.new/@filoz/synapse-core@939

npm i https://pkg.pr.new/@filoz/synapse-react@939

npm i https://pkg.pr.new/@filoz/synapse-sdk@939

commit: 5fb4a64

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Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	synapse-dev	5fb4a64	Commit Preview URL Branch Preview URL	Aug 26 2026, 11:31 AM

[FilOzzy]

🤖 Created releases:

• synapse-sdk-v1.2.1

🌻