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- Remove outdated universal-api and http-api pages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/theme.css

@@ -20,6 +20,7 @@ body {
   color: var(--sa-text);
 }
 
+/*
 a {
   color: var(--sa-primary);
 }
@@ -40,13 +41,6 @@ select {
   color: var(--sa-text);
 }
 
-code,
-pre {
-  background-color: var(--sa-card);
-  border: 1px solid var(--sa-border);
-  color: var(--sa-text);
-}
-
 .card,
 .mintlify-card,
 .docs-card {
@@ -70,3 +64,4 @@ pre {
 .alert-danger {
   border-color: var(--sa-danger);
 }
+*/