- Stack mission cards vertically inside the sidebar so the title gets
the full card width; action buttons drop to their own row below.
- Move the Activity timestamp out of the cramped stats row onto its
own line.
- Replace the icon-only Sparkles button in the sidebar header with a
full-width centered "Plan New Mission" button (icon + text). Mobile
footer button uses the same label.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>