Four templates: bug report (with environment table and platform-vs-plugin
gate), feature request (with problem statement and core-appropriateness
question), IDE/platform support request, and a config that disables
blank issues and redirects questions to Discord.
Requires contributors to articulate the problem they're solving,
confirm human review, document eval methodology, and check for
duplicate PRs. Informed by patterns in ~90 closed-without-merge PRs.