Add .devcontainer/devcontainer-lock.json, resolve oxfmt issues with vscode

[Spitfire1900]

What Changed

Add .devcontainer/devcontainer-lock.json
Resolve oxfmt issues with vscode - oxc-project/oxc-vscode#224

Why

Beginning with VSCode 1.118 fresh builds of devcontainers will create a .devcontainer/devcontainer-lock.json file and VSCode will honor the devcontainer-lock.json file if it exists.

UI Changes

Checklist

• This PR is small and focused
• I explained what changed and why
• [N/A] I included before/after screenshots for any UI changes
• [N/A] I included a video for animation/interaction changes

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Note

Low Risk
Low risk: changes are limited to devcontainer reproducibility and formatter dependency updates, with no runtime/business logic impact.

Overview
Adds .devcontainer/devcontainer-lock.json so VS Code devcontainer builds can pin feature versions/digests for more reproducible environments.

Updates .oxfmtrc.json to format the new lockfile consistently (no trailing commas and no final newline), and bumps the formatter dependency oxfmt from ^0.40.0 to ^0.49.0 (with corresponding bun.lock updates to the new platform bindings).

^{Reviewed by Cursor Bugbot for commit e87c13e. Bugbot is set up for automated code reviews on this repo. Configure here.}

Note

Add devcontainer lock file and bump oxfmt to 0.49.0

• Adds devcontainer-lock.json pinning the bun, git, node, and python features to specific versions with resolved image digests and integrity hashes.
• Bumps oxfmt from 0.40.0 to 0.49.0 in package.json, updating all platform-specific bindings in the lockfile.
• Adds a formatting override in .oxfmtrc.json to disable trailing commas and final newline for the lock file.

^{Macroscope summarized e87c13e.}

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[macroscopeapp]

Approvability

Verdict: Approved

Development tooling changes only: adds devcontainer lockfile, formatter configuration for that file, and updates the oxfmt formatter dependency. No runtime behavior impact.

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Dismissing prior approval to re-evaluate 964f923

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Dismissing prior approval to re-evaluate 8b34e4a

Dismissing prior approval to re-evaluate 296c6fa

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

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