docs: documentation overhaul and universal schema reference (#10)

* remove website .astro

* fix default origin

* docs: comprehensive documentation overhaul

- Add quickstart with multi-platform examples (E2B, Daytona, Docker, local)
- Add environment variables setup with platform-specific tabs
- Add Python SDK page (coming soon)
- Add local deployment guide
- Update E2B/Daytona/Docker guides with TypeScript examples
- Configure OpenAPI auto-generation for API reference
- Add CORS configuration guide
- Update manage-sessions with Rivet Actors examples
- Fix SDK method names and URLs throughout
- Add icons to main documentation pages
- Remove outdated universal-api and http-api pages

* docs: add universal schema and agent compatibility docs

- Create universal-schema.mdx with full event/item schema reference
- Create agent-compatibility.mdx mirroring README feature matrix
- Rename glossary.md to universal-schema.mdx
- Update CLAUDE.md with sync requirements for new docs
- Add links in README to building-chat-ui, manage-sessions, universal-schema
- Fix CLI docs link (rivet.dev -> sandboxagent.dev)

* docs: add inspector page and daytona network limits warning

docs/deploy/index.mdx

@@ -1,4 +1,21 @@
 ---
-sidebarTitle: Overview
+title: "Deploy"
+sidebarTitle: "Overview"
+description: "Choose where to run the sandbox-agent server."
+icon: "server"
 ---
 
+<CardGroup cols={2}>
+  <Card title="Local" icon="laptop" href="/deploy/local">
+    Run locally for development. The SDK can auto-spawn the server.
+  </Card>
+  <Card title="E2B" icon="cube" href="/deploy/e2b">
+    Deploy inside an E2B sandbox with network access.
+  </Card>
+  <Card title="Daytona" icon="cloud" href="/deploy/daytona">
+    Run in a Daytona workspace with port forwarding.
+  </Card>
+  <Card title="Docker" icon="docker" href="/deploy/docker">
+    Build and run in a container (development only).
+  </Card>
+</CardGroup>