Mission Run Overview
Mission Run: Next-Command Latency: Durable Fix + Perf-Gate Migration
Make 'spec-kitty next' fast again and move its latency guard off the blocking PR path onto the statistical performance pipeline.
Every 'spec-kitty next' invocation pays a ~1.8s cold-start (up from a 0.745s baseline) because the step-authority projection runs uncached on every call; meanwhile the check that guards it is a single-shot absolute wall-clock ceiling still blocking every PR, which false-reds on runner variance and has been ratcheted upward four times. This mission delivers the durable runtime fix (cache/optimize the projection) and migrates the guard onto the off-PR statistical performance pipeline, so contributors stop being blocked by noise and the product actually gets faster.