chore(sqlite): stateless storage refactor

[NathanFlurry]

Description

Please include a summary of the changes and the related issue. Please also include relevant motivation and context.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes.

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[NathanFlurry]

• feat(sqlite): pitr & forking #4859 : 2 dependent PRs (#4863 , #4868 )
• chore(sqlite): stateless storage refactor #4856 👈 (View in Graphite)
• main

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[railway-app]

🚅 Deployed to the rivet-pr-4856 environment in rivet-frontend

Service	Status	Web	Updated (UTC)
frontend-cloud	😴 Sleeping (View Logs)	Web	May 2, 2026 at 10:24 am
website	😴 Sleeping (View Logs)	Web	May 2, 2026 at 10:15 am
kitchen-sink	❌ Build Failed (View Logs)	Web	Apr 29, 2026 at 6:49 pm
ladle	✅ Success (View Logs)	Web	Apr 29, 2026 at 6:41 pm
mcp-hub	✅ Success (View Logs)	Web	Apr 29, 2026 at 6:40 pm
frontend-inspector	❌ Build Failed (View Logs)	Web	Apr 29, 2026 at 6:40 pm

[github-actions]

Preview packages published to npm

Install with:

npm install rivetkit@pr-4856

All packages published as 0.0.0-pr.4856.c68d9cb with tag pr-4856.

Engine binary is shipped via @rivetkit/engine-cli on linux-x64-musl, linux-arm64-musl, darwin-x64, and darwin-arm64. Windows users should use the release installer or set RIVET_ENGINE_BINARY.

Docker images:

docker pull rivetdev/engine:slim-c68d9cb
docker pull rivetdev/engine:full-c68d9cb

Individual packages

npm install rivetkit@pr-4856
npm install @rivetkit/react@pr-4856
npm install @rivetkit/rivetkit-napi@pr-4856
npm install @rivetkit/workflow-engine@pr-4856