fix(rsbuild.config): Set default AGENT_API_HOST to localhost:8000

Author: shengoo

web/rsbuild.config.mjs

@@ -8,7 +8,8 @@ export default defineConfig(({ mode }) => {
   const env = loadEnv(mode, process.cwd());
 
   // first try process.env.AGENT_API_HOST from docker environment, then try env.parsed.AGENT_API_HOST from .env file
-  const AGENT_API_HOST = process.env.AGENT_API_HOST || env.parsed.AGENT_API_HOST;
+  // finally use http://localhost:8000 as default
+  const AGENT_API_HOST = process.env.AGENT_API_HOST || env.parsed.AGENT_API_HOST || 'http://localhost:8000';
 
   return {
     plugins: [