Add local background removal and mask tools

package.json

@@ -3,8 +3,13 @@
   "private": true,
   "version": "0.0.0",
   "type": "module",
+  "license": "AGPL-3.0-only",
+  "author": "Achraf Achkari",
   "scripts": {
+    "fetch:imgly": "node scripts/fetch-imgly-assets.mjs",
+    "predev": "node scripts/fetch-imgly-assets.mjs",
     "dev": "vite --host",
+    "prebuild": "node scripts/fetch-imgly-assets.mjs",
     "build": "tsc -b && vite build",
     "preview": "vite preview",
     "test": "vitest",
@@ -13,8 +18,10 @@
     "format": "prettier --write ."
   },
   "dependencies": {
+    "@imgly/background-removal": "^1.7.0",
     "@tailwindcss/vite": "^4.3.0",
     "fabric": "^7.4.0",
+    "onnxruntime-web": "1.21.0",
     "pdf-lib": "^1.17.1",
     "react": "^19.2.6",
     "react-dom": "^19.2.6",