chore(tooling): upgrade Bun to 1.4.1

[waleedlatif1]

Summary

• upgrade Bun to 1.4.1 across package metadata, CI, containers, and sandbox configuration
• retain the existing lockfile after a frozen install and verify Bun-sensitive build and YAML paths

Type of Change

• Chore

Testing

• bun install --frozen-lockfile
• bun run lint
• bun run check:audits
• bun run docs-manifest:check
• bun run type-check
• bun run test
• bun run images:check
• production Sim build and CLI bundle builds under Bun 1.4.1

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

[vercel]

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Project	Deployment	Actions	Updated
docs	Ready	Preview	Sep 4, 2026 8:07pm UTC

[greptile-apps]

Greptile Summary

This PR consistently upgrades the repository’s supported and provisioned Bun runtime from 1.3.14 to 1.4.1.

• Aligns the root package-manager declaration and workspace engine requirements.
• Updates CI, release workflows, development containers, and production container bases.
• Updates both remote-sandbox builders through their shared Bun version constant.
• Retains the frozen lockfile and documents the Bun-sensitive fetch timeout verification.

Confidence Score: 5/5

The PR appears safe to merge; its Bun version changes are consistent across the active tooling, build, runtime, and sandbox paths.

No actionable failures remain: active version pins are aligned, frozen installs are preserved, sandbox providers share one updated version source, and the fetch deadline implementation is unchanged.

Important Files Changed

Filename	Overview
package.json	Updates the repository’s canonical package-manager declaration to Bun 1.4.1.
.github/workflows/ci.yml	Runs affected CI jobs under Bun 1.4.1 while retaining frozen lockfile installation.
docker/app.Dockerfile	Updates the main application’s build and runtime base to the Bun 1.4.1 slim image.
apps/sim/scripts/pi-sandbox-packages.ts	Aligns the shared E2B and Daytona sandbox Bun installation and assertion with version 1.4.1.
apps/sim/lib/core/utils/fetch-deadline.ts	Updates explanatory documentation for Bun 1.4.1 without changing deadline behavior.
apps/realtime/package.json	Raises the realtime workspace’s declared minimum Bun version to 1.4.1.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    Root["package.json<br/>bun@1.4.1"] --> CI["CI and release workflows"]
    Root --> Engines["Workspace engine requirements"]
    Root --> Containers["Development and production containers"]
    Root --> Sandbox["PI_BUN_VERSION"]
    Sandbox --> E2B["E2B template"]
    Sandbox --> Daytona["Daytona snapshot"]
    CI --> Frozen["Frozen bun.lock installation"]
    Containers --> Runtime["Bun 1.4.1 runtime"]
    Engines --> Runtime
    E2B --> Runtime
    Daytona --> Runtime

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_{Reviews (1): Last reviewed commit: "chore(tooling): upgrade Bun to 1.4.1" | Re-trigger Greptile}

[cubic-dev-ai]

No issues found across 37 files

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

_{Re-trigger cubic}