diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index 6e865f7..9502a4f 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -14,8 +14,10 @@
         "@icons-pack/react-simple-icons": "^13.13.0",
         "@stomp/stompjs": "^7.3.0",
         "@tanstack/react-query": "^5.101.0",
+        "@tanstack/react-virtual": "^3.13.1",
         "@xyflow/react": "^12.11.0",
         "axios": "^1.17.0",
+        "dompurify": "^3.2.4",
         "emoji-mart": "^5.6.0",
         "lucide-react": "^1.17.0",
         "react": "^19.2.6",
@@ -35,6 +37,7 @@
         "@testing-library/jest-dom": "^7.0.1",
         "@testing-library/react": "^16.3.2",
         "@testing-library/user-event": "^14.6.5",
+        "@types/dompurify": "^3.0.5",
         "@types/node": "^24.12.3",
         "@types/react": "^19.2.14",
         "@types/react-dom": "^19.2.3",
@@ -1503,6 +1506,33 @@
         "react": "^18 || ^19"
       }
     },
+    "node_modules/@tanstack/react-virtual": {
+      "version": "3.14.10",
+      "resolved": "https://registry.npmjs.org/@tanstack/react-virtual/-/react-virtual-3.14.10.tgz",
+      "integrity": "sha512-SRyoUbdFMRHuYXMijV5H4ZarQWpXkj3iANq8OFre+pybeVap8ZJjZ3Nz9bVjx4d8PfobVUQUdKyyyHYk3E+djw==",
+      "license": "MIT",
+      "dependencies": {
+        "@tanstack/virtual-core": "3.17.8"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/tannerlinsley"
+      },
+      "peerDependencies": {
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0",
+        "react-dom": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0"
+      }
+    },
+    "node_modules/@tanstack/virtual-core": {
+      "version": "3.17.8",
+      "resolved": "https://registry.npmjs.org/@tanstack/virtual-core/-/virtual-core-3.17.8.tgz",
+      "integrity": "sha512-BfEvehNpOT75r5Ksc5xW6NZuXujTfb7nlSEyVu4XHG3gdxNg1KqXruWbDewXOUaUYIo4oRbSfkjIajz4MAT8tA==",
+      "license": "MIT",
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/tannerlinsley"
+      }
+    },
     "node_modules/@testing-library/dom": {
       "version": "10.4.1",
       "resolved": "https://registry.npmjs.org/@testing-library/dom/-/dom-10.4.1.tgz",
@@ -1696,6 +1726,16 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/@types/dompurify": {
+      "version": "3.0.5",
+      "resolved": "https://registry.npmjs.org/@types/dompurify/-/dompurify-3.0.5.tgz",
+      "integrity": "sha512-1Wg0g3BtQF7sSb27fJQAKck1HECM6zV1EB66j8JH9i3LCjYabJa0FSdiSgsD5K/RbrsR0SiraKacLB+T8ZVYAg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/trusted-types": "*"
+      }
+    },
     "node_modules/@types/esrecurse": {
       "version": "4.3.1",
       "resolved": "https://registry.npmjs.org/@types/esrecurse/-/esrecurse-4.3.1.tgz",
@@ -1754,6 +1794,13 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/@types/trusted-types": {
+      "version": "2.0.7",
+      "resolved": "https://registry.npmjs.org/@types/trusted-types/-/trusted-types-2.0.7.tgz",
+      "integrity": "sha512-ScaPdn1dQczgbl0QFTeTOmVHFULt394XJgOQNoyVhZ6r2vLnMLJfBPd53SB52T/3G36VI1/g2MZaX0cwDuXsfw==",
+      "devOptional": true,
+      "license": "MIT"
+    },
     "node_modules/@typescript-eslint/eslint-plugin": {
       "version": "8.60.1",
       "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-8.60.1.tgz",
@@ -2785,6 +2832,15 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/dompurify": {
+      "version": "3.4.14",
+      "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-3.4.14.tgz",
+      "integrity": "sha512-dVoH9z+MY+C9IilgGCk3YfFqjLi3fChm2OiKJMzh6axrJ5qwxqWaZamgmHrpv22CN/KdbZJuGEGgfQoL00LTdg==",
+      "license": "(MPL-2.0 OR Apache-2.0)",
+      "optionalDependencies": {
+        "@types/trusted-types": "^2.0.7"
+      }
+    },
     "node_modules/dunder-proto": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/dunder-proto/-/dunder-proto-1.0.1.tgz",