Extract dashboard-usage-rows.ts (UsageRow, formatResetRemaining,
mergeClaudeDashboardAccounts, buildClaudeUsageRows, extractCodexUsageRows)
and codex-usage-collector.ts (fetchCodexUsage, applyCodexUsageToAccount,
buildCodexUsageRowsFromState, refresh functions returning data instead of
mutating module state). unified-dashboard.ts drops from 926 to 563 lines.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
