feat: fix Cmd-K shortcut and add exchange full-text search to command palette

- Add missing onOpen prop to CommandPalette (fixes Ctrl+K/Cmd+K)
- Wire server-side exchange search with debounced text query
- Use design system dev snapshot from Gitea registry in CI builds

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": "^0.1.8",
+        "@cameleer/design-system": "^0.0.0-snapshot.20260325.499c86b",
         "@tanstack/react-query": "^5.90.21",
         "openapi-fetch": "^0.17.0",
         "react": "^19.2.4",
@@ -276,9 +276,9 @@
       }
     },
     "node_modules/@cameleer/design-system": {
-      "version": "0.1.8",
-      "resolved": "https://gitea.siegeln.net/api/packages/cameleer/npm/%40cameleer%2Fdesign-system/-/0.1.8/design-system-0.1.8.tgz",
-      "integrity": "sha512-mc7IQOYYez0UItvwiNbbYFrJehG3JtdVlOUsdLXcN8zmgtpImleVro4MsPxCX4/OOGI4EGoX1oIVpFi91qEI6A==",
+      "version": "0.0.0-snapshot.20260325.499c86b",
+      "resolved": "https://gitea.siegeln.net/api/packages/cameleer/npm/%40cameleer%2Fdesign-system/-/0.0.0-snapshot.20260325.499c86b/design-system-0.0.0-snapshot.20260325.499c86b.tgz",
+      "integrity": "sha512-uiBdWYTT0wzIgL8QX21oHyb7xjeepnXvGAl/YHapd1o4u+GuXuB23kcyECurM/OTUN4dM7RGjGBp46Mbe8xcIQ==",
       "dependencies": {
         "react": "^19.0.0",
         "react-dom": "^19.0.0",