chore: clean up dead UI code and regenerate schema

- Remove non-functional search bar, notifications and settings buttons from header
- Remove leftover console.log and unused useAttrs import in sidebar
- Remove unused scoped CSS in computers/index.vue (Tailwind-only template)
- Regenerate database/schema.ts after running migrations locally
- Ignore .serena/ local tooling directory
- Refresh package-lock.json after npm install

inertia/pages/computers/index.vue

@@ -44,85 +44,3 @@ defineProps<{ computers: any[] }>()
     </div>
   </div>
 </template>
-
-<style scoped>
-.computers-container {
-  max-width: 1200px;
-  margin: 0 auto;
-  padding: 2rem;
-}
-
-.header {
-  display: flex;
-  justify-content: space-between;
-  align-items: center;
-  margin-bottom: 2rem;
-}
-
-.computers-grid {
-  display: grid;
-  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
-  gap: 2rem;
-}
-
-.computer-card {
-  border: 1px solid #e5e7eb;
-  border-radius: 0.5rem;
-  overflow: hidden;
-  display: flex;
-  flex-direction: column;
-}
-
-.card-image {
-  width: 100%;
-  height: 200px;
-  background-color: #f3f4f6;
-  display: flex;
-  align-items: center;
-  justify-content: center;
-}
-
-.card-image img {
-  width: 100%;
-  height: 100%;
-  object-fit: cover;
-}
-
-.no-image {
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  color: #9ca3af;
-}
-
-.card-content {
-  padding: 1rem;
-  flex: 1;
-  display: flex;
-  flex-direction: column;
-}
-
-.card-content h3 {
-  margin: 0 0 0.5rem 0;
-  font-size: 1.125rem;
-}
-
-.card-content p {
-  color: #6b7280;
-  margin: 0 0 1rem 0;
-  flex: 1;
-}
-
-.card-meta {
-  display: flex;
-  justify-content: space-between;
-  margin-bottom: 1rem;
-  font-size: 0.875rem;
-  color: #6b7280;
-}
-
-.empty-state {
-  text-align: center;
-  padding: 4rem 2rem;
-}
-</style>