chore(cli): prepare release v0.0.54

[cte]

CLI Release v0.0.54

This PR prepares the CLI release v0.0.54.

Changes

• Version bump in package.json
• Changelog update

Summary of Changes Since v0.0.53

Added

• Stdin Stream Mode: New stdin-prompt-stream mode that reads prompts from stdin, allowing batch processing and piping multiple tasks

Fixed

• Fixed JSON emitter state not being cleared between tasks in stdin-prompt-stream mode
• Fixed inconsistent user role for prompt echo partials in stream-json mode

Checklist

• Version number is correct
• Changelog entry is complete and accurate
• All CI checks pass

[roomote]

Rooviewer   See task

Reviewed the version bump and changelog changes. One minor documentation issue found.

• Broken link to non-existent src/ui/stdin-prompt-stream.ts in CHANGELOG.md

_{Mention @roomote in a comment to request specific changes to this pull request or fix all unresolved issues.}

[roomote]

The relative link stdin-prompt-stream.ts points to a file that does not exist. The stdin-prompt-stream functionality lives in src/commands/cli/run.ts and src/index.ts. Previous changelog entries (e.g., v0.0.50) link to files that do exist, so this appears to be a typo. Consider either removing the link or pointing it to the correct file.

_{Fix it with Roo Code or mention @roomote and request a fix.}