feat: SEO improvements and npm publish prep

- Expand sitemap from 2 to 13 URLs (all docs pages)
- Update JSON-LD featureList with Anthropic, OpenCode, TypeScript SDK
- Update llms.txt with docs links, TS SDK, OpenCode plugin sections
- Add READMEs for agentlens-sdk and opencode-agentlens packages
- Add repository, homepage, author, bugs fields to both package.json

apps/web/src/app/page.tsx

@@ -37,9 +37,12 @@ export default function HomePage() {
               "Agent Decision Tracing",
               "Real-time Dashboard",
               "OpenAI Integration",
+              "Anthropic Integration",
               "LangChain Integration",
+              "OpenCode Plugin",
               "Self-hosting Support",
               "Python SDK",
+              "TypeScript SDK",
             ],
           }),
         }}