fix: prevent examples and apps from being published

- Update .changeset/config.json to correctly ignore example packages (changed from @examples/* to @object-ui/example-*)
- Add @object-ui/console and @object-ui/site to changeset ignore list
- Mark @object-ui/console as private in package.json
- Remove publishConfig from @object-ui/console as it's now private

All example packages already have "private": true
All publishable packages are at unified version 0.5.0

Co-authored-by: hotlong <50353452+hotlong@users.noreply.github.com>

Author: Copilot

.changeset/config.json

@@ -8,6 +8,8 @@
   "baseBranch": "main",
   "updateInternalDependencies": "patch",
   "ignore": [
-    "@examples/*"
+    "@object-ui/example-*",
+    "@object-ui/console",
+    "@object-ui/site"
   ]
 }

apps/console/package.json

@@ -1,10 +1,8 @@
 {
   "name": "@object-ui/console",
   "version": "0.5.0",
+  "private": true,
   "description": "ObjectStack Console - The standard runtime UI for ObjectStack applications",
-  "publishConfig": {
-    "access": "public"
-  },
   "type": "module",
   "main": "./plugin.js",
   "exports": {