Interpreting and querying Firefox's `captcha_detection.*` Glean metrics and the `captcha-detection` custom ping (BigQuery `mozdata.firefox_desktop.captcha_detection`, `mozdata.fenix.captcha_detection`). Use when analyzing captcha prevalence or solve / pass / interacted rates per vendor (ArkoseLabs, Cloudflare Turnstile, Datadome, reCAPTCHA v2, hCaptcha, AWS WAF), cohorting the ping by privacy settings or browsing volume, or writing or reviewing a query or dashboard over it. Records which ratios are valid per vendor, which counters are dead or over-counting, and the filters that keep non-organic rows out.