feat: overhaul chat architecture with persistent JdbcChatMemory, reactive UI components, and improved conversation management

package.json

@@ -13,14 +13,18 @@
     "@radix-ui/react-avatar": "^1.2.2",
     "@radix-ui/react-scroll-area": "^1.2.14",
     "@radix-ui/react-slot": "^1.3.0",
+    "@radix-ui/react-tooltip": "^1.2.13",
     "@stomp/stompjs": "^7.3.0",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
+    "framer-motion": "^12.42.2",
     "lucide-react": "^1.24.0",
     "react": "^19.2.7",
     "react-dom": "^19.2.7",
     "react-markdown": "^10.1.0",
+    "react-resizable-panels": "^4.12.2",
     "remark-gfm": "^4.0.1",
+    "shiki": "^4.3.1",
     "tailwind-merge": "^3.6.0",
     "zustand": "^5.0.14"
   },