.NET: Add DevUI package for .NET (#1603)

* Implement DevUI

* Review feedback

* Fix build

python/packages/devui/frontend/vite.config.ts

@@ -5,6 +5,7 @@ import path from "path";
 
 // https://vite.dev/config/
 export default defineConfig({
+  base: "",
   plugins: [react(), tailwindcss()],
   resolve: {
     alias: {
@@ -12,12 +13,20 @@ export default defineConfig({
     },
   },
   build: {
+    commonjsOptions: {
+      // Enable deterministic builds, as per https://github.com/vitejs/vite/issues/13672#issuecomment-1784110536
+      strictRequires: true,
+    },
     outDir: "../agent_framework_devui/ui",
     emptyOutDir: true,
     rollupOptions: {
       output: {
         manualChunks: undefined,
         inlineDynamicImports: true,
+        // Use static filenames instead of content hashes
+        entryFileNames: "assets/index.js",
+        chunkFileNames: "assets/[name].js",
+        assetFileNames: "assets/[name].[ext]",
       },
     },
   },