CUB-135: resolve merge conflict with dev + lint fixes

- Merge SSEProvider/ToastContainer with Dashboard/Inventory routes
- Fix no-explicit-any in useSSE.ts (Record<string, unknown>)
- Fix exhaustive-deps warning in InventoryPage (wrap filaments in useMemo)

frontend/package.json

@@ -27,9 +27,11 @@
     "eslint": "^9.15.0",
     "eslint-plugin-react-hooks": "^5.0.0",
     "eslint-plugin-react-refresh": "^0.4.14",
+    "globals": "^17.6.0",
     "postcss": "^8.4.49",
     "tailwindcss": "^4.0.0",
     "typescript": "~5.6.0",
+    "typescript-eslint": "^8.60.0",
     "vite": "^6.0.0"
   }
 }