Support tick_labelset

### Description

https://docs.getodk.org/form-question-types/#range-tick-labels
https://getodk.github.io/xforms-spec/#range-tick-labels

User interest: https://forum.getodk.org/t/range-tick-labelset-not-showing-up-when-rendered/58319/5?u=ln

---

### Checklist
- **Does it need UI/UX design?**
- [ ] Yes. Describe the UI/UX requirements or attach a Figma link in the "Design" section.
- [ ] No
- **Does it need API design?**
- [ ] Yes. Specify the endpoints, methods, or data structures needed.
- [ ] No
- **Does it need design around state flow?**
- [ ] Yes. Outline the state flow requirements.
- [ ] No
- **Does it need a test plan?**
- [ ] Yes. Add the test plan as a comment in this task or attach the document.
- [ ] No
---

### User Stories

- **As a** [user type],
**I want** [functionality],
**so that** [benefit].

---

### Design

- **Figma**: [Insert URL]
- **Design Docs**: [Insert URL]

---

### Dependencies

-

---

### Additional Notes

-

---

### Related Issues

-

Start with the linked ODK Forms and XForms specifications and the referenced forum report to clarify the expected tick_labelset behavior. Then locate the range-question rendering entry point and existing related tests; done means tick labels defined by tick_labelset render correctly in the reported scenario.

Written by the indexing model from the issue text.