Dependency-ordered plan for the standalone Electron app. Corrects spec data
gaps: yield/plan already emit JSON; only spend flow-json (Sankey matrix) and
devices/share --format json are new. Subagent-driven execution: Opus 4.8 +
Codex 5.6-high implement, Fable reviews each task.
Standalone Electron app rendering the v6 "indigo instrument" wireframes,
fed by the codeburn CLI via the menubar JSON contract (spawn codeburn --json,
decode, poll). Six sections: Overview, Spend, Optimize, Models, Plans,
Settings/Devices. Data aggregation stays CLI-side; renderer never fakes data.
