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/astro.config.mjs

@@ -1,11 +1,14 @@
 import { defineConfig } from 'astro/config';
 import react from '@astrojs/react';
 import tailwind from '@astrojs/tailwind';
+import sitemap from '@astrojs/sitemap';
 
 export default defineConfig({
+  site: 'https://sandbox-agent.dev',
   output: 'static',
   integrations: [
     react(),
-    tailwind()
+    tailwind(),
+    sitemap()
   ]
 });