Initial commit: EifelDC - Discord-like Matrix chat platform

Includes server (Rust/Axum API proxy with voice management),
Tauri desktop client with Svelte UI, bot-sdk, Docker infra
(Synapse, PostgreSQL, Coturn, Nginx), and CI/CD pipeline.

client/src-ui/vite.config.ts

@@ -0,0 +1,29 @@
+import { svelte } from '@sveltejs/vite-plugin-svelte';
+import { defineConfig } from 'vite';
+import sveltePreprocess from 'svelte-preprocess';
+
+const host = process.env.TAURI_DEV_HOST;
+const isTauri = !!process.env.TAURI_DEV_HOST || !!process.env.TAURI_ENV_PLATFORM;
+
+export default defineConfig({
+  plugins: [svelte({
+    preprocess: sveltePreprocess(),
+  })],
+  clearScreen: false,
+  server: {
+    port: 5173,
+    strictPort: true,
+    host: host || false,
+    hmr: host ? { protocol: 'ws', host, port: 5174 } : undefined,
+    watch: isTauri ? { ignored: ['**/src-tauri/**'] } : undefined,
+    proxy: isTauri ? undefined : {
+      '/api': {
+        target: 'http://localhost:3000',
+        changeOrigin: true,
+      },
+    },
+  },
+  build: {
+    outDir: 'dist',
+  },
+});