fix(release): harden updater status and cutter layout

Ignore malformed update notifications that do not carry a version, preventing unusable release prompts in installed builds.

Keep the loaded cutter workspace free of the source selector and give cutter export selects an explicit non-repeating indicator after workspace styling.

Add regression coverage, bump the patch release to 1.0.10, and update public installation documentation.

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "twitch-vod-manager",
-  "version": "1.0.9",
+  "version": "1.0.10",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "twitch-vod-manager",
-      "version": "1.0.9",
+      "version": "1.0.10",
       "license": "MIT",
       "dependencies": {
         "axios": "^1.16.1",