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

packages/opencode-plugin/package.json

@@ -43,5 +43,15 @@
     "tracing",
     "coding-agent"
   ],
-  "license": "MIT"
+  "license": "MIT",
+  "author": "Vectry <hunter@repi.fun>",
+  "repository": {
+    "type": "git",
+    "url": "https://gitea.repi.fun/repi/agentlens",
+    "directory": "packages/opencode-plugin"
+  },
+  "homepage": "https://agentlens.vectry.tech",
+  "bugs": {
+    "url": "https://gitea.repi.fun/repi/agentlens/issues"
+  }
 }