Add TOML versions of formulas (gt-xmyha)

Converted all .formula.json files to .formula.toml using bd formula convert.
TOML provides better ergonomics:
- Multi-line strings without \n escaping
- Human-readable diffs
- Comments allowed

Original JSON files retained for backwards compatibility.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.beads/formulas/shiny.formula.toml

@@ -0,0 +1,40 @@
+description = "Engineer in a Box - the canonical right way. Design before you code. Review before you ship. Test before you submit."
+formula = "shiny"
+type = "workflow"
+version = 1
+
+[[steps]]
+description = "Think carefully about architecture before writing code. Consider: How does this fit into the existing system? What are the edge cases? What could go wrong? Is there a simpler approach?"
+id = "design"
+title = "Design {{feature}}"
+
+[[steps]]
+description = "Write the code for {{feature}}. Follow the design. Keep it simple. Don't gold-plate."
+id = "implement"
+needs = ["design"]
+title = "Implement {{feature}}"
+
+[[steps]]
+description = "Review the implementation. Check for: Does it match the design? Are there obvious bugs? Is it readable and maintainable? Are there security concerns?"
+id = "review"
+needs = ["implement"]
+title = "Review implementation"
+
+[[steps]]
+description = "Write and run tests. Unit tests for new code, integration tests if needed, run the full test suite, fix any regressions."
+id = "test"
+needs = ["review"]
+title = "Test {{feature}}"
+
+[[steps]]
+description = "Submit for merge. Final check: git status, git diff. Commit with clear message. Push and create PR."
+id = "submit"
+needs = ["test"]
+title = "Submit for merge"
+
+[vars]
+[vars.assignee]
+description = "Who is assigned to this work"
+[vars.feature]
+description = "The feature being implemented"
+required = true