feat(inspector): update visual styling to match landing page (#166)

feat(inspector): update visual styling to match landing page

- Update color scheme to match website (black bg, white/10 borders)
- Add Open Sans font
- Update button styles (white primary buttons)
- Add collapsible tool results and status messages
- Replace avatar letters with icons (User, Settings, AlertTriangle)
- Add status dividers for session/turn events
- Update feature coverage badges to lighter grey
- Remove pill styling from event times
- Update popup menus to solid black background

feat(website): add Pi agent to hero diagram and update styling

- Add Pi agent with cyan color (#06B6D4) to the diagram
- Update layout to 3 agents on top row, 2 on bottom row
- Add backdrop-blur glass effects for modern look
- Add animated dot background that changes with active adapter
- Add scroll fade effect for hero section
- Update subtitle to include Pi in supported agents list
- Increase 'CONNECTED TO' label font size

feat(website): add site styling updates and SEO improvements

- Update component styling to match Rivet design (FAQ, FeatureGrid, etc.)
- Add SEO improvements (sitemap, robots.txt, meta tags, Open Graph)
- Remove CTASection component
- Update footer tagline
- Add Pi logo

frontend/packages/website/package.json

@@ -13,6 +13,7 @@
   },
   "dependencies": {
     "@astrojs/react": "^4.2.0",
+    "@astrojs/sitemap": "^3.2.0",
     "@astrojs/tailwind": "^6.0.0",
     "astro": "^5.1.0",
     "framer-motion": "^12.0.0",