Use the ux-researcher-designer Skill.

Use our survey, interview, support and usability records to brief a redesign of the returns journey. Produce evidence-based personas, a current journey map, prioritized pain points and task-completion calculations. Connect every quotation and finding to a source record, then prepare the next moderated usability study.

The attached business materials are:
- inputs/brief.interviews.json
- inputs/brief.users.json
- inputs/merchant.json
- inputs/support.json
- inputs/usability_observations.json

Deliver a complete result.md report that the operations team can read, plus any finished files needed for this task. Keep supporting calculations and evidence with the deliverables. Write the report in English; use the requested target language for customer-facing copy. The business datasets are fictional examples unless the brief explicitly names a live public website.