docs(customization): sync devcontainer example with devcontainer.json

[Mohammed Alkindi (MohammedAlkindi)]

Description

The "Customizing for Your Team" example omitted "pnpmVersion": "none" and "installTools": false, which #2874 added to the real .devcontainer/devcontainer.json to stop network handshake failures on unused optional downloads. Copying the snippet reintroduced what that change fixed. The example now matches the real file for the node:1 and python:1 features.

Related Issue(s)

Closes #2881

Type of Change

• Documentation update

Testing

npm run lint:md: 492 files, 0 issues. npm run spell-check: 799 files, 0 issues. Both repo-wide, exit 0.

Checklist

Required Checks

• Documentation is updated (if applicable)
• Files follow existing naming conventions
• Changes are backwards compatible (if applicable)

Required Local Checks

• Spell checking: npm run spell-check
• Local validation aggregate: npm run validate:local
• Documentation validation (if docs changed): npm run validate:docs
• Link validation: npm run lint:md-links

The unchecked commands need pwsh, absent on this machine, so they were not run.

Security Considerations

• This PR does not contain any sensitive or NDA information

🤖 Generated with Claude Code

[Mohammed Alkindi (MohammedAlkindi)]

Duplicate of #2884, which makes the same change and also bumps ms.date. Closing this one.