ShareLinks plugin: guest share links for Jellyfin

Includes fix for redemption failing with DbUpdateConcurrencyException:
change the guest password before applying the user policy, since
UpdatePolicyAsync bumps the user's EF concurrency token and a stale
instance then breaks ChangePassword.

Jellyfin.Plugin.ShareLinks/meta.json

@@ -0,0 +1,12 @@
+{
+  "guid": "68540b76-ee74-436d-85ff-2abc884bbea6",
+  "name": "ShareLinks",
+  "version": "1.0.0.0",
+  "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"
+}