feat(frontend): integrate product search in SearchView

- Add ProductResults component import
- Add products and searchMode state
- Add parallel product search to search effect
- Add filter tabs (Todos/Medicamentos/Parafarmacia)
- Render ProductResults when products found
- Add CSS for filter tabs and products section

apps/frontend/src/views/SearchView.css

@@ -356,3 +356,44 @@
   color: var(--primary);
   font-size: 0.85rem;
 }
+
+/* Filter tabs */
+.filter-tabs {
+  display: flex;
+  gap: 0.5rem;
+  margin-bottom: 1rem;
+  flex-wrap: wrap;
+}
+
+.filter-tab {
+  padding: 0.5rem 1rem;
+  border-radius: 9999px;
+  border: none;
+  font-size: 0.875rem;
+  font-weight: 500;
+  cursor: pointer;
+  background: var(--surface-container-lowest, #f3f4f6);
+  color: var(--on-surface-variant, #6b7280);
+  transition: all 0.15s;
+}
+
+.filter-tab:hover {
+  background: var(--surface-container-low, #e5e7eb);
+}
+
+.filter-tab--active {
+  background: var(--primary, #2563eb);
+  color: white;
+}
+
+/* Products section */
+.products-section {
+  margin-top: 1.5rem;
+}
+
+.section-subtitle {
+  font-size: 1.125rem;
+  font-weight: 600;
+  color: var(--on-surface);
+  margin-bottom: 0.75rem;
+}