New: Protected Objects excludes selected objects from cleanup while retaining them as occluders. JSON Analysis Reports exports fresh settings and candidate counts locally before cleanup. Improvements: direct polygon IDs, adaptive pixel histograms and per-mesh fingerprint reuse reduce applicable overhead. Safety: geometry/transform/visibility freshness checks; scene-local face scope; hidden shared-user, linked-data, multi-scene, modifier and shape-key guards; results clear after Apply. Backup collections are render-hidden. Preview restores viewport shading and prior color attributes. English controls, conservative face threshold and Delete confirmations. Packaged as a GPL-3.0-or-later Blender Extension for Windows x64; validated on Blender 5.0.0 and 5.2.1 with 16 regression checks plus package/namespace validation. No universal speedup or reduction is promised.