Recently added, shop sorting, and outfit cards with T5 products

- The inventory's Recently Added puts T5 products added to the library in the last 30 days first.
- The shop's T5 listing follows its sort menu: Best Match ranks by name, Newest by upload date
  (oldest first ascending); ratings and prices (T5 products have neither) sort by newest.
- Outfit cards: outfit_products.php gets the outfit's community products added (not for sale),
  find_bundle.php is asked about IMVU's products only, and removing one in the card (remove_pids)
  keeps it from IMVU and forgets it in the outfit.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

internal/fetch/fetch.go

@@ -47,6 +47,7 @@ type Fetcher struct {
 
 	mu       sync.Mutex
 	library  map[string]bool // the person's library, as last read
+	entries  []hub.LibraryEntry
 	inflight map[string]bool
 	failed   map[string]time.Time // products that failed lately (not retried for a while)
 	access   string
@@ -77,7 +78,7 @@ func (f *Fetcher) SyncLibrary(ctx context.Context) {
 		ids[e.Product.ID] = true
 	}
 	f.mu.Lock()
-	f.library = ids
+	f.library, f.entries = ids, lib
 	f.mu.Unlock()
 	defer func() {
 		if f.OnLibrary != nil {
@@ -313,3 +314,10 @@ func (f *Fetcher) Owned(id string) bool {
 	defer f.mu.Unlock()
 	return f.library[id]
 }
+
+// Library is the person's library, as last read.
+func (f *Fetcher) Library() []hub.LibraryEntry {
+	f.mu.Lock()
+	defer f.mu.Unlock()
+	return append([]hub.LibraryEntry(nil), f.entries...)
+}