Fix domain parsing for VSCode marketplace installation

[jumperck]

Summary

The VSCode MCP marketplace prompts users for ado_domain input, but entering "core,work,repositories" fails with error: Specified invalid domain 'core,work,repositories'.

This reopens discussion from #800 with new context: the marketplace auto-generates the ado_domain input prompt (outside this repo's control), creating a UX disconnect where users are prompted for input that doesn't work.

The Problem

When installing from marketplace:

1. User receives ado_domain input prompt
2. User enters: core,work,repositories
3. System error: Specified invalid domain 'core,work,repositories'
4. Expected: Parse as three domains

Root cause: DomainsManager doesn't split comma/space-separated values.

Proposed Fix

Update src/shared/domains.ts to accept flexible input formats:

-d "core,work,repositories"         # Comma-separated
-d "core work repositories"         # Space-separated  
-d "core, work repositories"        # Mixed
-d "core" "work" "repositories"     # Array (current, still works)

Implementation:

• Add regex split /[,\s]+/ to DomainsManager
• Add test coverage in test/src/domains.test.ts
• Update README.md with supported formats
• Maintain backward compatibility

Alternative

Contact marketplace maintainers to remove/update the ado_domain input prompt metadata.

Rules

1. Maintain backward compatibility with existing array-based configurations
2. Follow existing project coding standards
3. Add comprehensive test coverage for all input formats

[jumperck]

I have a code change ready, in case of need. But I'm just opening this issue first for discussion before submitting the Pull Request.

[danhellem]

Thanks for the suggestion. The MCP Server has been out for 8+ months, and we don't have anyone else reporting this. I don't want to dismiss it, but I don't think it is something we are going to change right now. I will convert this to a discussion and keep an eye on it.

[JarroVGIT]

Maybe it would help if there was something about this in the docs, because in VSCode it's very unituitive to have this correct right now. You basically have to provide this: core" "work" "work-items" "repositories" "pipelines (note the missing " in front and end)

I basically found this out by finding #800 .