Fix: Remove local link: dependencies from package.json for public NPM publishing

- Remove link:@/components/ui/badge
- Remove link:@/components/ui/button
- Remove link:@/components/ui/card
- Remove link:@/components/ui/progress
- Remove link:@/components/ui/separator

These are internal component references only needed for development.
Keeping them breaks public NPM package distribution.

frontend/package.json

@@ -39,9 +39,6 @@
     "@radix-ui/react-toggle-group": "^1.1.1",
     "@radix-ui/react-tooltip": "^1.1.6",
     "axios": "^1.12.0",
-    "badge": "link:@/components/ui/badge",
-    "button": "link:@/components/ui/button",
-    "card": "link:@/components/ui/card",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "cmdk": "^1.1.1",
@@ -55,7 +52,6 @@
     "lucide-react": "^0.454.0",
     "next": "^16.1.6",
     "next-themes": "^0.4.6",
-    "progress": "link:@/components/ui/progress",
     "react": "^19.2.5",
     "react-day-picker": "^9.14.0",
     "react-dom": "^19.1.0",
@@ -64,7 +60,6 @@
     "react-markdown": "^10.1.0",
     "react-resizable-panels": "^2.1.7",
     "recharts": "^2.15.0",
-    "separator": "link:@/components/ui/separator",
     "sonner": "^1.7.1",
     "tailwind-merge": "^2.5.5",
     "tailwindcss-animate": "^1.0.7",