share whole series and seasons, not just single titles

Sharing a series or season now tags the entire tree (series, seasons,
episodes) so the guest can browse and play everything inside it, and
strips it all again at cleanup. Redeeming re-tags the tree, so episodes
added after the link was created show up on the next redemption. The
guest lockdown in the web client now asks the server whether a page's
item is visible to the guest instead of hard-coding the single shared
id, so guests can navigate inside the shared tree but nowhere else.
Libraries and collections are still rejected.

Bumps the version to 1.0.1.0.

Jellyfin.Plugin.ShareLinks/meta.json

@@ -1,12 +1,12 @@
 {
   "guid": "68540b76-ee74-436d-85ff-2abc884bbea6",
   "name": "ShareLinks",
-  "version": "1.0.0.0",
+  "version": "1.0.1.0",
   "targetAbi": "10.11.0.0",
   "framework": "net9.0",
   "owner": "Franciskid",
   "overview": "Secure expiring guest-share links for Jellyfin items.",
   "description": "Adds secure, expiring share links for Jellyfin items with JSON-backed storage, token hashing, and cleanup scaffolding.",
   "category": "General",
-  "timestamp": "2026-07-06T00:00:00.0000000Z"
+  "timestamp": "2026-07-08T00:00:00.0000000Z"
 }