Log drawer: the Logs button shows its open state (Close logs, chevron); a Newest button appears when the user scrolls
up and follow re-engages at the end; a time ruler with error and swap marks, an HH:MM:SS jump box, last error and last
swap buttons; substring search with a match count and highlights; copy the lines in view; the height drags from a grip
(140 px to 70% of the window, remembered); a window under 700 px tall opens a 180 px drawer. The list is virtualised
(19 px rows, only the rows in view in the DOM; up to 20,000 lines kept; wrap mode under 5,000 lines). Polling runs only
while the drawer is open and the window is visible.
Screens: one type scale and spacing scale in app.css, tabular figures everywhere, the bottom bar in pieces (machine name
truncates first, address always short, uptime dropped under 1100 px), tile captions carry their full text as a title,
syncing shows an ETA from the measured block rate, the engine-away state names itself on the node tile, short-window
rules, the key sheet scrolls on a short window, compact settings card rows on two lines, only a block that just arrived
flashes (not the whole strip on first paint).
Performance: the minute grid is drawn once into an offscreen layer; the strip redraws twice a second and at the display
rate only during a flash; nothing draws and the state poll drops to every 5 s while document.hidden. ?debug=1 prints a
budget line every 5 s and exposes window.__igneumBench.
tools/ui-mock: a stand-in engine (node tools/ui-mock/server.mjs) replaying recorded, scrubbed API responses with
scenarios (syncing, nodedown, nocards, integrated, clock, paused, biglog, fresh, job, nvidia), so UI work never
touches a running miner.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
