gghstats: Keep GitHub traffic past 14 days

We've all been there. You ship an open-source project, a tiny CLI, or a docs site. You watch Insights → Traffic for a week: views spike, clones climb, life is good. Then you come back a month later and ask a simple question: did that blog post actually move the needle over time? GitHub’s answer is blunt: detailed traffic (views and clones) only lives in a rolling 14-day window. Past that, the granularity is gone unless you exported it yourself. I wanted historical traffic — without a SaaS middle