- TimeHelpers.to_datetime: `cond` with match?/2 guards becomes five
function heads dispatched by input type — DateTime passes through,
NaiveDateTime anchors to UTC, integer is a millisecond Unix epoch,
binary tries ISO 8601, everything else is nil.
- PageController.health: the three-branch `cond` + inner `if db_healthy`
becomes a chain of small respond_* helpers, each pattern-matched on a
single axis (health_status, shutting_down?, db_healthy?). db_healthy?/0
isolates the rescue.
- format_uptime splits the cond into four format_uptime_parts/4 clauses.
Adds tests for the PageController actions (health 200 / 503-draining,
ready, sitemap.xml, .well-known/api-catalog, status.json). Coverage
66.81 → 67.29%.
Graham McIntire
564d21bb26