Use the product-analytics Skill.

Analyze our customer events, purchase funnel and weekly trading data. Deduplicate users, define conversion and observation windows, calculate the main funnel losses and mature retention cohorts, and prepare a management report. Distinguish return visits or key actions from repeat purchases and prioritize the next investigation.

The attached business materials are:
- inputs/events.csv
- inputs/funnel.csv
- inputs/merchant.json
- inputs/weekly.csv

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.