update

apps/web/vite.config.ts

@@ -4,13 +4,35 @@ import path from "node:path";
 import { fileURLToPath } from "node:url";
 import { defineConfig } from "vite";
 import { DEV_API_PROXY_TARGET, DEV_WEB_PORT } from "../../scripts/dev-ports.mjs";
+import { detectHostProfile } from "../../scripts/lowmem-env.mjs";
 
 const monorepoRoot = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "../..");
 
+const profile = detectHostProfile();
+/** Env wins; otherwise follow auto RAM/CPU tier. */
+const lowMem =
+	process.env.BUILD_LOW_MEM != null && process.env.BUILD_LOW_MEM !== ""
+		? process.env.BUILD_LOW_MEM !== "0"
+		: profile.lowMem;
+
 export default defineConfig({
 	// Load PUBLIC_* from monorepo-root .env (same file as the Go API).
 	envDir: monorepoRoot,
 	plugins: [tailwindcss(), sveltekit()],
+	build: {
+		// Gzip size reporting double-reads output and spikes peak RSS on tiny hosts.
+		reportCompressedSize: !lowMem,
+		// Production maps are opt-in; maps roughly double transform memory.
+		sourcemap: process.env.BUILD_SOURCEMAP === "1",
+		// Smaller inlined assets → less heap during transform on 4GB boxes.
+		assetsInlineLimit: lowMem ? 1024 : 4096,
+		rolldownOptions: {
+			checks: {
+				// Informative only; sveltekit-guard resolveId dominates wall time (see Rolldown docs).
+				pluginTimings: process.env.BUILD_PLUGIN_TIMINGS === "1"
+			}
+		}
+	},
 	server: {
 		// true → all interfaces (IPv4 + IPv6). Default localhost is ::1-only on Windows,
 		// which breaks 127.0.0.1 probes and some browser Happy Eyeballs paths.