Consistency fixes:
- Extract getThisWeekRange/getThisMonthRange to shared lib/utils/dateRanges.ts
(removed 4 identical copy-pasted definitions)
- Add error boundaries for behavior, cdn, search, pagespeed pages
(4 new error.tsx files — previously fell through to generic parent error)
- Add "View setup guide" CTA to empty states on journeys and behavior pages
(previously showed text with no actionable button)
- Fix non-lazy useState initializer in funnel detail page
- Fix Bot & Spam settings header from text-xl to text-2xl (matches all other sections)
- Add useMinimumLoading to PageSpeed skeleton (consistent with all other pages)
Cleanup:
- Remove 438 redundant dark: class prefixes (app is dark-mode only)
text-neutral-500 dark:text-neutral-400 → text-neutral-400 (206 occurrences)
text-neutral-900 dark:text-white → text-white (232 occurrences)
- Remove dead @stripe/react-stripe-js and @stripe/stripe-js packages
(billing migrated to Polar, no code imports Stripe)
- Remove duplicate motion package (framer-motion is the one actually used)
Replace @nivo/sankey with custom D3 implementation:
- 30px thin node bars with labels positioned beside them
- Links at 0.3 opacity, 0.6 on hover with full path highlighting
- Colors based on first URL segment for visual grouping
- Dynamic height based on tallest column
- Responsive width via ResizeObserver
- Click nodes to filter, hover for tooltips
- Invisible wider hit areas for easier link hovering
- Remove @nivo/sankey dependency, add d3
- nodeThickness 8 → 100 (wide blocks like Rybbit)
- Labels inside nodes with white text instead of outside
- Margins 90px → 16px (labels no longer need outside space)
- Dynamic chart height based on max nodes per step
- Tighter nodeSpacing (4px) and subtle link opacity
- nodeBorderRadius 4 for rounded block corners
- Switch to fixed-width Sankey with horizontal scroll (250px per step)
- Thinner nodes (8px), tighter spacing (8px)
- Labels on all columns, not just first/last
- Lower link opacity (0.15) for cleaner look
- Increased node cap to 25 per step
