Every issue opened from now on is gated on the template headings, sent once
through the LiteLLM proxy with a strict JSON schema, and labelled from the
manifest in .github/labels.json. Old-template issues are not touched. The bug
template shrinks to Description, Config, LiteLLM Version and Steps to Repro,
both templates gain a domain dropdown, and the labelers that keyed off the old
component dropdown go away.
