feat: switch demo to the solar-mini4 pipeline (v44 = v41 + document chunking)

deploy: v35 document-level chunking (DP split + parallel chunks), progress view, Supabase logbook

UI: remove pipeline description caption

UI: side-by-side 원문/교열후 panes, larger input, remove metrics/step view

Replace v24-era demo with v34 pipeline demo (engine-vendored bundle)

refactor(ui): drop v16 legacy tab

feat: add title proofreading sandbox tab

ui: surface v24 tab first (default), v16 legacy second

ui: remove per-tab description blurbs

feat: add v24 pipeline (FT + self-consistency × 2 + tool-calling judge)

Single-tab feedback UI (Good/NotBad/Critical); FT dedup tighter

Move blindtest tab first; add RLS policies and error surfacing

initial deploy