feat: phase 1 MVP — sections, services, drag-drop, renderers

Backend: migration 0002 (sections/items/urls/settings), CRUD +
fractional reorder, icon upload, settings, export/import, cached
status pings. Handler tests cover reorder, URL scheme validation,
settings round-trip.

Frontend: shared board store over the generated client, dnd-kit
layer (same-section, cross-section, section reorder persisted),
URL chooser popover, add/edit service dialog, settings dialog,
Bento + Cards renderers behind the shared seam, dark/light theme.

Generated with [Devin](https://devin.ai)

Authored By: TDvorak <[email protected]>
Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

apps/frontend/package.json

@@ -11,13 +11,23 @@
   },
   "dependencies": {
     "@dash/api-client": "*",
+    "@dnd-kit/core": "^6.3.1",
+    "@dnd-kit/sortable": "^10.0.0",
+    "@dnd-kit/utilities": "^3.2.2",
     "@fontsource-variable/geist": "^5.2.5",
     "@fontsource-variable/geist-mono": "^5.2.5",
+    "@radix-ui/react-dialog": "^1.1.23",
+    "@radix-ui/react-label": "^2.1.15",
+    "@radix-ui/react-popover": "^1.1.23",
+    "@radix-ui/react-select": "^2.3.7",
+    "@radix-ui/react-slot": "^1.3.3",
+    "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "lucide-react": "^0.545.0",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
-    "tailwind-merge": "^3.3.1"
+    "tailwind-merge": "^3.3.1",
+    "tw-animate-css": "^1.4.0"
   },
   "devDependencies": {
     "@tailwindcss/vite": "^4.1.13",