Responding to ds-review-bot round 2 on #662:
- LANG_ALIASES is a Map: an assistant-authored fence label like
constructor or __proto__ now misses (plain render) instead of resolving
an inherited object property and crashing shiki mid-conversation. Test
sweeps the inherited-key labels.
- The singleton is pre-warmed in a deferred task at plugin boot (the
~120-175ms engine+grammar construction long task moves off the first
finalized fence's render); the lazy path remains the correctness
fallback, and unref keeps non-browser imports from pinning the loop.
Agent Note updated (both languages).
Tianyi Cui
79e72eb736