fix: remove paraglideVitePlugin from vite.config — root cause of 500 errors

The paraglideVitePlugin runs at build time (buildStart hook) and fetches
the inlang plugin from cdn.jsdelivr.net to recompile messages. This:
  1. Overwrites messages.js with 'export * as m from ...' unconditionally
  2. Causes Rollup SSR tree-shaking to replace all m.*() calls with (void 0)
  3. Crashes every page server-side with 'TypeError: (void 0) is not a function'

The plugin is no longer needed: compiled paraglide output is committed to
git and updated via 'npm run paraglide' when messages change. Removing the
plugin lets Vite treat messages.js as a plain static module, keeping all
exports intact through the SSR bundle.

ui/vite.config.ts

@@ -1,21 +1,21 @@
 import { sveltekit } from '@sveltejs/kit/vite';
 import tailwindcss from '@tailwindcss/vite';
-import { paraglideVitePlugin as paraglide } from '@inlang/paraglide-js';
 import { defineConfig } from 'vite';
 
 // Source maps are always generated so that the CI pipeline can upload them to
 // GlitchTip via glitchtip-cli after a release build.
+//
+// Note: paraglideVitePlugin is intentionally removed. It fetches an inlang
+// plugin from CDN at build time, which (a) fails in offline CI and (b)
+// regenerates messages.js with `export * as m` causing Rollup to tree-shake
+// all message imports into (void 0). Compiled paraglide output is committed to
+// git and updated manually via `npm run paraglide`.
 export default defineConfig({
 	build: {
 		sourcemap: true
 	},
 	plugins: [
 		tailwindcss(),
-		paraglide({
-			project: './project.inlang',
-			outdir: './src/lib/paraglide',
-			strategy: ['url', 'cookie', 'baseLocale']
-		}),
 		sveltekit()
 	],
 	ssr: {