New command: spo list defaultvalue get. Closes #6535

[Ateina]

Closes #6535

[Adam-it]

Thank you for opening the PR 👏
We will review it ASAP

[Copilot]

Pull Request Overview

This PR introduces a new command spo list defaultvalue get to retrieve a specific default column value from a SharePoint document library. The command supports retrieval by list ID, title, or URL, and can optionally filter by folder location.

Key Changes:

• Added new command to retrieve default column values from a document library
• Implemented XML parsing for SharePoint's client_LocationBasedDefaults.html file
• Added comprehensive test coverage with multiple scenarios including error handling

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/m365/spo/commands/list/list-defaultvalue-get.ts	Core command implementation with XML parsing and API integration
src/m365/spo/commands/list/list-defaultvalue-get.spec.ts	Comprehensive test suite covering all command scenarios
src/m365/spo/commands.ts	Command registration in the commands list
docs/src/config/sidebars.ts	Documentation navigation entry
docs/docs/cmd/spo/list/list-defaultvalue-get.mdx	User-facing command documentation
.devproxy/api-specs/sharepoint.yaml	API endpoint specifications for dev proxy

[Adam-it]

✅Tested locally works perfectly
@Ateina amaizing work 😍
I don't have much to add. I only added two comments which will improve the reusability of our codebase. Please consider them before we proceed.
Copilot also noticed some minor things we could fixup.
Other than that seems very solid 👍
You Rock 🤩

[Ateina]

@Adam-it Thank you for the review 💚
I thought about moving these methods but wasn't sure if it should be done in this PR
Will fix all comments and update the PR asap 👍

[Adam-it]

@Ateina I saw you added a commit with a fixup I guess. If you think the PR is read for another go and to be merged use the ready for review button to let us know if we may proceed 👍

[Adam-it]

@Ateina I just noticed your reply to one of my comments when doing the review. So sorry I did not respond sooner.
I left some guidance on what would be the best way to proceed. Let me know if this is something you could tweak as well and besides that, we should be ready to merge 👍

[Ateina]

@Adam-it Thank you 💚
I’ve moved the duplicated code to the utils.
If anything else is needed, no problem to update 🙂