Two more surfaces adopt the resident-serve pattern the desktop app got:
- Web dashboard: every period tab is prefetched sequentially right after
startup, so the first click on 7d/30d/Month answers from the payload
cache instead of paying a full parse; stale-while-revalidate rebuilds
behind a served payload past 75% of the TTL so expiry never lands its
multi-second parse on a user's click. Lifetime prefetches last.
- Menubar: ServeConnection (Swift actor) holds one codeburn serve --stdio
child; status payload fetches route through it once warm, with the same
contract as the app client — cold start and every failure keep the
spawn path, three child deaths disable serve for the run, requests
time out by killing the child, app termination shuts it down, and a
pre-serve CLI (0.9.19) simply dies into permanent spawn fallback, so
mixed-version installs degrade gracefully.
swift build clean, swift test 156/156, CLI tsc clean; verified live with
both the Electron app's and the menubar's serve children resident and
answering.
