* ci: harden description checks (dropdown placeholder, how-to-test, link \b)
- issue: flag sections still showing the "-- Please Select --" dropdown
placeholder (added in #2068) as a single comma-separated line item;
presence-only checks previously let an un-chosen dropdown pass.
- PR: replace the numbered-step "How to Test" rule with a non-trivial
content requirement (>=30 chars). The old /\d+\.\s*\S/ rule both
false-failed prose/code-block test plans and was gamed by an empty
"1. 2. 3." shell; the message now explains what detail to provide.
- PR: tighten the linked-issue regex to /#\d+\b/ so a hex colour like
#1a2b3c no longer counts as an issue reference.
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Co-authored-by: Povilas Kirna <povilas.kirna@pebble.net>
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
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