release: v1.1.3 — dual-domain separation and URL options

Add admin/image domain separation with host isolation middleware,
optional hide-folder public URLs, GitHub release update check, and
Lucky/Nginx deployment docs. Switch license to GPL-3.0-only.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "pichost",
-  "version": "1.1.2",
+  "version": "1.1.3",
   "description": "Self-hosted image hosting for your NAS / home server — Nuxt admin UI, local disk or S3-compatible storage, server-side WebP compression, referer protection, Twikoo/EasyImage compatible.",
   "homepage": "https://github.com/O96u/PicHost#readme",
   "repository": {
@@ -19,7 +19,7 @@
     "twikoo",
     "easyimage"
   ],
-  "license": "MIT",
+  "license": "GPL-3.0-only",
   "private": true,
   "type": "module",
   "packageManager": "npm@11.12.1",