fix: use correct provider home dirs and make SSE failures non-fatal

- E2B: /home/user, Daytona: /home/daytona, Vercel: /home/vercel-sandbox, ComputeSDK: /home
- Docker-based examples keep /root (correct)
- Add missing install-agent steps to Daytona example and doc
- Make SSE loop failure non-fatal in acp-http-client transport

sdks/acp-http-client/src/index.ts

@@ -450,7 +450,8 @@ class StreamableHttpAcpTransport {
           return;
         }
 
-        this.failReadable(error);
+        // SSE failure is non-fatal: the POST request/response flow still works.
+        // Exiting the loop allows ensureSseLoop() to restart it on the next POST.
         return;
       }
     }