Creates a per-course dashboard view with engagement, progress, and optionally
award-based completion metrics. completion_rate_progress uses content
progress (available from Learner Usage alone); completion_rate_awards uses
certificate issuance (more authoritative but requires Awards Issued dataset).
Examples
if (FALSE) { # \dontrun{
usage <- bs_get_ads("Learner Usage")
bs_course_summary(usage)
awards <- bs_get_ads("Awards Issued")
bs_course_summary(usage, awards = awards)
} # }