fix: strip paraglide's 'export * as m' after compile in prepare script

paraglide-js unconditionally emits 'export * as m from ...' in messages.js
which causes Vite/Rollup SSR to tree-shake all named message imports,
replacing every m.*() call with (void 0)() and crashing every page.
Strip the two offending lines via a Node.js one-liner in the prepare script
so the fix survives every npm ci run in CI.

Also stop tracking messages.js in git since it is always regenerated.

ui/package.json

@@ -7,7 +7,7 @@
 		"dev": "vite dev",
 		"build": "vite build",
 		"preview": "vite preview",
-		"prepare": "paraglide-js compile --project ./project.inlang --outdir ./src/lib/paraglide && svelte-kit sync || echo ''",
+		"prepare": "paraglide-js compile --project ./project.inlang --outdir ./src/lib/paraglide && node -e \"const fs=require('fs'),f='./src/lib/paraglide/messages.js',c=fs.readFileSync(f,'utf8').split('\\n').filter(l=>!l.includes('export * as m')&&!l.includes('enabling auto-import')).join('\\n');fs.writeFileSync(f,c)\" && svelte-kit sync || echo ''",
 		"check": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json",
 		"check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch"
 	},

ui/src/lib/paraglide/messages.js

@@ -1,2 +0,0 @@
-/* eslint-disable */
-export * from './messages/_index.js'