ee75660834
Adds a manual-first pipeline for finding UX regressions in long screen recordings: ffmpeg re-encode to proxy, LAB-palette frame-change detection (kasa-style), pixel-diff backup, manual triage into a triage overlay on the existing ASCII UI Layout Map DSL (docs/guide_ascii_layout_map.md). The overlay adds only a thin meta-layer (entry headers, @delta, @ux_finding) on top of the existing visual grammar; the existing DSL remains the source of truth for the visual layer. Includes 8 edge-case worked examples ranked by LLM difficulty and a findings-report template for the user-in-the-loop iteration. Future track candidates: build the keyframe-extraction tool (scripts/dogfood_extract.py) after ≥3 manual dogfoods validate the DSL shape.