Update tooling deps: npm/json and devcontainer lock

[MasterTLF]

Analysis

The session updated local runtime/tooling versions (Node via nvm, npm/json via npm), but repository-tracked tooling deps in _scripts still reflected older state and had no lockfile.

To make the tooling update reproducible in this repo, dependency versions and lock data need to be captured in source control.

Fix

Added json as a devDependency in _scripts/package.json, generated _scripts/package-lock.json, and added .devcontainer/devcontainer-lock.json to pin devcontainer feature resolutions.

Copilot Checklist

I successfully ran these commands at the end of my session, and they completed without error:

• npx hereby build
• npx hereby test
• npx hereby lint
• npx hereby format

[Copilot]

Pull request overview

This PR aims to make local tooling/devcontainer setup more reproducible by capturing dependency/feature resolution state in-repo (devcontainer feature lock + _scripts npm deps/lock).

Changes:

• Added .devcontainer/devcontainer-lock.json to pin resolved devcontainer feature versions/digests.
• Updated _scripts/package.json to include json and npm as devDependencies.
• Added _scripts/package-lock.json to lock _scripts dependency resolution.

Reviewed changes

Copilot reviewed 2 out of 3 changed files in this pull request and generated 3 comments.

File	Description
.devcontainer/devcontainer-lock.json	New lockfile pinning devcontainer feature resolutions.
_scripts/package.json	Adds _scripts devDependencies (json, npm).
_scripts/package-lock.json	New lockfile capturing _scripts dependency graph.

Files not reviewed (1)

• _scripts/package-lock.json: Generated file

[javi0guerrero4-cloud]

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