The nightly headroom monitor flagged fileSize 🟡 permanently because the worst
frozen file was src/app/docs/lib/openapi.generated.ts — frozen at its emitter's
exact output size in #12212, i.e. ~0% headroom BY CONSTRUCTION (growth is
policed by conscious re-freezes, never by editing the module). Same class:
open-sse/vendor/** (upstream code nobody slims by hand).
isMonitorExemptFile() excludes .generated. modules and vendor/ paths from the
monitor's worst/near-cap accounting only — check:file-size itself still
enforces both. The fileSize row now points at the worst HUMAN-EDITABLE frozen
file (currently tests/integration/skills-pipeline.test.ts at 4.5%, a true
early warning: its baseline note already requires a split rationale for any
further growth).
Refs #12149
9d04995950