#22700: fix: support node binaries named like `node22`

## Summary - Problem: quite similar to #2444. but opensuse packages do not use hyphens. they re named like `node22` `npm22` etc. - What changed: nodeExecutablePattern regex, a `?` is added. ## Change Type (select all) - [x] Bug fix - [ ] Feature - [ ] Refactor - [ ] Docs - [ ] Security hardening - [ ] Chore/infra ## Scope (select all touched areas) - [ ] Gateway / orchestration - [ ] Skills / tool execution - [ ] Auth / tokens - [ ] Memory / storage - [ ] Integrations - [ ] API / contracts - [x] UI / DX - [ ] CI/CD / infra ## Linked Issue/PR ## User-visible / Behavior Changes ## Security Impact (required) - New permissions/capabilities? (`Yes/No`) n - Secrets/tokens handling changed? (`Yes/No`) n - New/changed network calls? (`Yes/No`) n - Command/tool execution surface changed? (`Yes/No`) n - Data access scope changed? (`Yes/No`) n - If any `Yes`, explain risk + mitigation: ## Repro + Verification ### Environment - OS: opensuse tumbleweed - Runtime/container: node24 - Model/provider: *not related* ### Steps systemctl start ### Expected started ### Actual exited ## Evidence `error: unknown command '/usr/bin/node24'` ## Human Verification (required) - Verified scenarios: app starts - Edge cases checked: not - What you did **not** verify: ? ## Compatibility / Migration - Backward compatible? (`Yes/No`) **should be yes unless `node\d+` args have other meanings in the codebase** - Config/env changes? (`Yes/No`) n - Migration needed? (`Yes/No`) n - If yes, exact upgrade steps: ## Failure Recovery (if this breaks) - How to disable/revert this change quickly: just `git revert` ## Risks and Mitigations <!-- greptile_comment --> <h3>Greptile Summary</h3> Modified the `nodeExecutablePattern` regex in `src/cli/argv.ts:175` to support node binaries without hyphens (e.g., `node22`) by making the hyphen optional with `?`. The change is minimal and well-tested with two new test cases covering both `node22` and `/usr/bin/node22` patterns. The regex change from `/^node-\d+(?:\.\d+)*(?:\.exe)?$/` to `/^node-?\d+(?:\.\d+)*(?:\.exe)?$/` correctly matches OpenSUSE Tumbleweed's naming convention while maintaining backward compatibility with existing patterns like `node-22`, `node-22.2.0`, and `node-22.2.0.exe`. <h3>Confidence Score: 5/5</h3> - This PR is safe to merge with minimal risk - The change is a trivial one-character regex modification that adds optional hyphen support. Test coverage is comprehensive with new test cases specifically validating the new pattern. The change is backward compatible and solves a real-world issue on OpenSUSE systems without introducing any breaking changes - No files require special attention _{Last reviewed commit: 464cb9c} <!-- greptile_other_comments_section --> _{(2/5) Greptile learns from your feedback when you react with thumbs up/down!} <!-- /greptile_comment -->