[hlenke]

Removes a made-up Prometheus setup and fixes a broken bash line on the heartbeat "other integrations" page.

What was wrong

• The page had you scrape a checkly-exporter:8080/metrics target and graph a heartbeat_monitor_status metric. Neither exists. Checkly serves Prometheus metrics from its own hosted endpoint (/accounts/{accountId}/v2/prometheus/metrics), and the metric names start with checkly_, like checkly_check_status. Heartbeat monitors are included.
• HEARTBEAT_URL="${HEARTBEAT_URL_${ENVIRONMENT^^}}" fails in bash with bad substitution.

What changed

• The Prometheus and Grafana snippets are replaced by two sentences that point to the Prometheus v2 integration page.
• The bash line now uses indirect expansion. I tested it, and it resolves HEARTBEAT_URL_PROD when ENVIRONMENT=prod.

Note
This page isn't in the sidebar and nothing links to it. Most of it is generic and overlaps with the heartbeat examples page. It may be worth merging the useful bits into examples.mdx and deleting this page later (noted on the ticket).

vale and npm run check:links are clean.

Linear: DOC-163

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[hlenke]

Closing as obsolete: #731 (merged) deleted detect/uptime-monitoring/heartbeat-monitors/other.mdx as an orphan page and redirected it, so there's nothing left to fix here.