perf(webui): lazily load module descriptors

webui/vite.config.ts

@@ -9,6 +9,8 @@ const require = createRequire(import.meta.url);
 const webuiRoot = dirname(fileURLToPath(import.meta.url));
 const installedModulesVirtualId = "virtual:govoplan-installed-modules";
 const resolvedInstalledModulesVirtualId = `\0${installedModulesVirtualId}`;
+const installedModuleVirtualPrefix = "virtual:govoplan-installed-module/";
+const resolvedInstalledModuleVirtualPrefix = `\0${installedModuleVirtualPrefix}`;
 
 const defaultWebModulePackages = [
   "@govoplan/access-webui",
@@ -31,6 +33,7 @@ const defaultWebModulePackages = [
   "@govoplan/postbox-webui",
   "@govoplan/risk-compliance-webui",
   "@govoplan/scheduling-webui",
+  "@govoplan/search-webui",
   "@govoplan/views-webui",
   "@govoplan/workflow-webui"
 ];
@@ -61,20 +64,41 @@ function availableWebModuleSpecifiers(): string[] {
 }
 
 function govoplanInstalledModulesPlugin(): Plugin {
+  const specifierByModuleVirtualId = new Map(
+    availableWebModuleSpecifiers().map((specifier) => [
+      `${installedModuleVirtualPrefix}${encodeURIComponent(specifier)}`,
+      specifier
+    ])
+  );
+
   return {
     name: "govoplan-installed-modules",
     resolveId(id: string) {
       if (id === installedModulesVirtualId) return resolvedInstalledModulesVirtualId;
+      if (specifierByModuleVirtualId.has(id)) return `\0${id}`;
       return null;
     },
     load(id: string) {
-      if (id !== resolvedInstalledModulesVirtualId) return null;
-      const imports = availableWebModuleSpecifiers();
-      return [
-        ...imports.map((specifier, index) => `import module${index} from ${JSON.stringify(specifier)};`),
-        `export const installedWebModules = [${imports.map((_specifier, index) => `module${index}`).join(", ")}];`,
-        "export default installedWebModules;"
-      ].join("\n");
+      if (id === resolvedInstalledModulesVirtualId) {
+        const loaders = [...specifierByModuleVirtualId].map(([virtualId, specifier]) => (
+          `{ packageName: ${JSON.stringify(specifier)}, load: () => import(${JSON.stringify(virtualId)}) }`
+        ));
+        return [
+          `export const installedWebModuleLoaders = [${loaders.join(", ")}];`,
+          "export default installedWebModuleLoaders;"
+        ].join("\n");
+      }
+      if (!id.startsWith(resolvedInstalledModuleVirtualPrefix)) return null;
+      const publicVirtualId = id.slice(1);
+      const specifier = specifierByModuleVirtualId.get(publicVirtualId);
+      if (!specifier) return null;
+      const moduleEntry = join(packageDirectory(specifier), "src", "module.ts");
+      if (!existsSync(moduleEntry)) {
+        throw new Error(`${specifier} does not expose src/module.ts`);
+      }
+      // Import the contribution descriptor directly. Package root barrels may
+      // intentionally re-export pages and would otherwise defeat route splitting.
+      return `export { default } from ${JSON.stringify(moduleEntry)};`;
     }
   };
 }
@@ -88,9 +112,8 @@ export default defineConfig({
     include: ["@xyflow/react"]
   },
   build: {
-    // Full-product builds include the host shell plus all installed module wiring.
-    // Dedicated route/vendor splitting belongs in a separate performance pass.
-    chunkSizeWarningLimit: 1200
+    manifest: true,
+    chunkSizeWarningLimit: 500
   },
   resolve: {
     preserveSymlinks: false,
@@ -132,6 +155,7 @@ export default defineConfig({
         fileURLToPath(new URL('../../govoplan-postbox/webui', import.meta.url)),
         fileURLToPath(new URL('../../govoplan-risk-compliance/webui', import.meta.url)),
         fileURLToPath(new URL('../../govoplan-scheduling/webui', import.meta.url)),
+        fileURLToPath(new URL('../../govoplan-search/webui', import.meta.url)),
         fileURLToPath(new URL('../../govoplan-views/webui', import.meta.url)),
         fileURLToPath(new URL('../../govoplan-workflow/webui', import.meta.url))
       ]