chore: add check meta-task for org consistency

[nsheaps]

Summary

• Adds a check meta-task to mise.toml that runs both lint and test
• Part of org-wide mise standardization across nsheaps repos

Test plan

• Run mise run check and verify it executes both lint and test
• Verify mise run lint and mise run test still work independently

🤖 Generated with Claude Code

[nsheaps]

Review: chore: add check meta-task for org consistency — Score: 97/100

Category	Score	Notes
Simplicity	100	Single task definition, clear structure
Flexibility	100	Depends on existing lint and test tasks
Usability	100	Meta-task pattern aligns with org standard
Documentation	100	Clear description: "Run all checks (lint + test)"
Security	100	No security implications
Pattern Matching	100	Matches git-wt repo mise.toml pattern
Best Practices	100	Proper depends syntax, echo feedback message included
General QA	97	Lint and test tasks verified to exist; check task correctly specified

✅ All categories ≥85% — Ready to merge

Verdict: Clean check meta-task addition. Depends chain correct. Approve.