Claiming namespace sysml

### Namespace

sysml

### Ownership

- [x] The namespace is not currently owned on Open VSX (verify by a search on [open-vsx.org](https://open-vsx.org))

### Account Age

- [x] The GitHub ID making this request has at least 12 months of public history

### VS Code Publisher with Repo

- [ ] The namespace is also a publisher account on the VS Code Marketplace (check by browsing https://marketplace.visualstudio.com/publishers/{publisher}) and has an extension published there with a repo specified in its package.json file.

### VS Code Publisher without Repo

- [x] The namespace is also a publisher account on the VS Code Marketplace and does not have published extensions or has published extensions with no GitHub repos.

### Not a VS Code Marketplace Publisher

- [ ] The namespace is not a publisher account on the VS Code Marketplace

### All Other Cases

- [ ] You are unable to provide the inputs required in the three options above. This option will take the longest to process.

### Claim evidence

Provide the requested information (commit URL or domain/subdomain) or a justification for granting ownership of the namespace.

SysMLv2 is the Systems Modeling Language. We have developed a toolkit for the language including syntax highlighting grammars, an LSP and VS code extensions: https://github.com/Open-MBEE/sysml-toolkit/tree/main/editors/vscode

OpenMBEE is an open-source NumFOCUS sponsored organization - https://www.openmbee.org/
Planetary Utilities is an OpenMBEE contributor and tenant of the VS Code Marketplace account for the requested namespace `sysml` - https://planetaryutilities.com/

Review the Open VSX namespace-claim workflow, then verify the sysml namespace on open-vsx.org and the publisher details on the VS Code Marketplace. Check the linked SysML toolkit repository and the provided organization and domain evidence; done means the ownership claim has enough verified evidence for maintainers to approve or reject it.

Written by the indexing model from the issue text.