Add support for DOCX file format

[vrcprl]

What

Implement a loader for DOCX files in Replexica.

Why

To support content writers, translators, and marketing teams working with documentation and marketing materials.

How

1. Create a new loader in packages/cli/src/loaders/docx.ts
2. Implement parsing logic for DOCX structure
3. Add two unit tests in packages/cli/src/loaders/index.spec.ts:
   • Test parsing a simple DOCX file
   • Test handling comments in DOCX entries
4. Update @replexica/spec to include DOCX format
5. Generate a changeset using pnpm new for both 'replexica' and '@replexica/cli' packages
6. In the pull request, include a link to the DOCX specification used.

After completing the task

Noticed a file format Replexica doesn't yet support? Please create a new GitHub ticket (if it doesn't yet exist!), using the format/structure of this GitHub issue.

[mohammadshahidbeigh]

Hi @vrcprl, I'm interested in working on this issue. Would you be willing to assign it to me? Thanks!

[maxprilutskiy]

@mohammadshahidbeigh assigned! Let's do it! 🔥