T27F live

The live mode of T27F replays a recorded log of actor events through the law compiled to WebAssembly: the work graph comes from work_graph.t27 over the log's events, the HUD from hud.t27, the ops from display_list.t27, the frame clock and replay from live_mode.t27. The log here is logs/recorded_log.json -- 24 events extracted from work_graph_fixture.t27 KIND[0..23]. The page replays the log's scalar plane now: arrival_frame, paints_due and latency_ms from live_mode.t27, compiled into the preview t27f.wasm -- an animated frame axis, a playhead, and a per-event table of arrival, paint and latency. The wasm's origin and limits are named in PROVENANCE.txt and t27f.build. The struct-path replay -- work_graph.t27's graph, hud.t27's scene, display_list.t27's ops -- is the named next step; until it lands the page renders the scalar plane and never fakes a HUD scene. See PROVENANCE.txt for the exact sources, compiler and checksums.