feat: move environment selector into TopBar (DS v0.1.30)

Update @cameleer/design-system to v0.1.30 which accepts ReactNode
for the environment prop. Move EnvironmentSelector from standalone
div into TopBar, rendering between theme toggle and user menu.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ui/package-lock.json

@@ -8,7 +8,7 @@
       "name": "ui",
       "version": "0.0.0",
       "dependencies": {
-        "@cameleer/design-system": "^0.1.29",
+        "@cameleer/design-system": "^0.1.30",
         "@tanstack/react-query": "^5.90.21",
         "lucide-react": "^1.7.0",
         "openapi-fetch": "^0.17.0",
@@ -278,9 +278,9 @@
       }
     },
     "node_modules/@cameleer/design-system": {
-      "version": "0.1.29",
-      "resolved": "https://gitea.siegeln.net/api/packages/cameleer/npm/%40cameleer%2Fdesign-system/-/0.1.29/design-system-0.1.29.tgz",
-      "integrity": "sha512-Za4drshZhGqonR0QyZxDpo6UnhT+VaOCSRLIlmjRrVZD/8+E+wvjbCVO2/sX5EMCfho+x6Y6V7d4GHNwu38ioQ==",
+      "version": "0.1.30",
+      "resolved": "https://gitea.siegeln.net/api/packages/cameleer/npm/%40cameleer%2Fdesign-system/-/0.1.30/design-system-0.1.30.tgz",
+      "integrity": "sha512-HK8bQlp7NU1GIZAT17gjyeN/NQVDdpQiUmphFJ/f+y4nS+FsbCcI+Qtq67S9+DZeu33+7L/NFUDRVYBTjuX20w==",
       "dependencies": {
         "lucide-react": "^1.7.0",
         "react": "^19.0.0",