feat(analytics): thread category/vehicle names on remaining SchemaViewer routes

Completes the empty-catalog enrichment so parts_panel_viewed carries
human-readable names across ALL catalog flows, not just the decoded-vehicle
route. Now the '0 parca - kategoriye gore' breakdown gets named rows from
catalog-brand, emex, pcat and demo browsing too:
- emex: categoryName = data.group.name
- pcat: categoryName = activeSchema.name
- catalog-brand: categoryName = data.name, vehicleLabel = decoded brandName
- demo: categoryName = data.name, vehicleLabel (already computed)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

apps/web/src/routes/dashboard/catalog_/$brandName_/$modelId/categories_/$categoryId.tsx

@@ -234,6 +234,8 @@ function CatalogCategoryPage() {
             isLoading={isLoading}
             vehicleId={modelId}
             categoryId={categoryId}
+            vehicleLabel={decodeURIComponent(brandName)}
+            categoryName={data?.name}
           />
         </Suspense>
       )}

apps/web/src/routes/dashboard/catalog_/emex/$catalogCode_/$vehicleId_/groups/$groupId.tsx

@@ -87,6 +87,7 @@ function EmexGroupPartsPage() {
           isLoading={isLoading}
           vehicleId={vehicleId}
           categoryId={groupId}
+          categoryName={data?.group?.name}
         />
       </Suspense>
 

apps/web/src/routes/dashboard/catalog_/pcat/$catalogId_/$modelId_/$carId_/groups/$groupId.tsx

@@ -104,6 +104,7 @@ function PcatSchemaPage() {
           isLoading={isLoading}
           vehicleId={carId}
           categoryId={groupId}
+          categoryName={activeSchema?.name ?? undefined}
         />
       </Suspense>
 

apps/web/src/routes/demo_/categories_/$categoryId.tsx

@@ -189,6 +189,8 @@ function DemoCategoryPage() {
                 isLoading={isLoading}
                 vehicleId="demo"
                 categoryId={categoryId}
+                vehicleLabel={vehicleLabel}
+                categoryName={data?.name}
               />
             </Suspense>
           ))}