chore(deps): refresh package and engine locks

- update Zustand and refreshed npm lockfile metadata

- refresh BtbN FFmpeg Windows/Linux artifacts with verified checksums

- make update checks fail closed on unavailable providers and target-specific engine feeds

- update Rust transitive dependencies and add checker regression coverage

package.json

@@ -64,7 +64,7 @@
     "react": "^19.2.8",
     "react-dom": "^19.2.8",
     "react-i18next": "^17.0.11",
-    "zustand": "^5.0.14"
+    "zustand": "^5.0.15"
   },
   "devDependencies": {
     "@tauri-apps/cli": "^2.11.4",