fix: use self-portaling DetailPanel from design system v0.1.5

DetailPanel now portals itself to #cameleer-detail-panel-root (a div
AppShell places as a sibling of .main in the top-level flex row).
Pages just render <DetailPanel> inline — no manual createPortal,
no context, no prop drilling.

Remove the old #detail-panel-portal div from LayoutShell and the
createPortal wrappers from Dashboard and AgentHealth.

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": "^0.1.4",
+        "@cameleer/design-system": "file:../../design-system",
         "@tanstack/react-query": "^5.90.21",
         "openapi-fetch": "^0.17.0",
         "react": "^19.2.4",
@@ -35,6 +35,34 @@
         "vite": "^8.0.0"
       }
     },
+    "../../design-system": {
+      "name": "@cameleer/design-system",
+      "version": "0.1.5",
+      "dependencies": {
+        "react": "^19.0.0",
+        "react-dom": "^19.0.0",
+        "react-router-dom": "^7.0.0"
+      },
+      "devDependencies": {
+        "@playwright/test": "^1.58.2",
+        "@testing-library/jest-dom": "^6.6.3",
+        "@testing-library/react": "^16.3.0",
+        "@testing-library/user-event": "^14.6.1",
+        "@types/react": "^19.0.0",
+        "@types/react-dom": "^19.0.0",
+        "@vitejs/plugin-react": "^4.3.0",
+        "happy-dom": "^20.8.4",
+        "typescript": "^5.6.0",
+        "vite": "^6.0.0",
+        "vite-plugin-dts": "^4.5.4",
+        "vitest": "^3.0.0"
+      },
+      "peerDependencies": {
+        "react": "^19.0.0",
+        "react-dom": "^19.0.0",
+        "react-router-dom": "^7.0.0"
+      }
+    },
     "node_modules/@babel/code-frame": {
       "version": "7.29.0",
       "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.29.0.tgz",
@@ -276,19 +304,8 @@
       }
     },
     "node_modules/@cameleer/design-system": {
-      "version": "0.1.4",
-      "resolved": "https://gitea.siegeln.net/api/packages/cameleer/npm/%40cameleer%2Fdesign-system/-/0.1.4/design-system-0.1.4.tgz",
-      "integrity": "sha512-DWyHv/1Nr8/h56T2ny1dsOZGy9YK64hfajTMOsl7gkWF3PwLPiB9Hpapa4O2Y5T/sspegxdlSZSddHF7muyFbw==",
-      "dependencies": {
-        "react": "^19.0.0",
-        "react-dom": "^19.0.0",
-        "react-router-dom": "^7.0.0"
-      },
-      "peerDependencies": {
-        "react": "^19.0.0",
-        "react-dom": "^19.0.0",
-        "react-router-dom": "^7.0.0"
-      }
+      "resolved": "../../design-system",
+      "link": true
     },
     "node_modules/@emnapi/core": {
       "version": "1.9.1",
@@ -2955,22 +2972,6 @@
         }
       }
     },
-    "node_modules/react-router-dom": {
-      "version": "7.13.2",
-      "resolved": "https://registry.npmjs.org/react-router-dom/-/react-router-dom-7.13.2.tgz",
-      "integrity": "sha512-aR7SUORwTqAW0JDeiWF07e9SBE9qGpByR9I8kJT5h/FrBKxPMS6TiC7rmVO+gC0q52Bx7JnjWe8Z1sR9faN4YA==",
-      "license": "MIT",
-      "dependencies": {
-        "react-router": "7.13.2"
-      },
-      "engines": {
-        "node": ">=20.0.0"
-      },
-      "peerDependencies": {
-        "react": ">=18",
-        "react-dom": ">=18"
-      }
-    },
     "node_modules/require-from-string": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/require-from-string/-/require-from-string-2.0.2.tgz",