feat: integrate DOMPurify for sanitizing HTML content

yarn.lock

@@ -6766,6 +6766,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@types/dompurify@npm:^3.2.0":
+  version: 3.2.0
+  resolution: "@types/dompurify@npm:3.2.0"
+  dependencies:
+    dompurify: "npm:*"
+  checksum: 10c0/e83fec586ffbb1b43f7c8479f2a99c223814d240db912d53fb126aaeea52a4091deceeb75632b5d76004d88ef0fbf444984887b121dece6fa69f4172ed4b2b07
+  languageName: node
+  linkType: hard
+
 "@types/eslint-scope@npm:^3.7.7":
   version: 3.7.7
   resolution: "@types/eslint-scope@npm:3.7.7"
@@ -7137,6 +7146,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@types/trusted-types@npm:^2.0.7":
+  version: 2.0.7
+  resolution: "@types/trusted-types@npm:2.0.7"
+  checksum: 10c0/4c4855f10de7c6c135e0d32ce462419d8abbbc33713b31d294596c0cc34ae1fa6112a2f9da729c8f7a20707782b0d69da3b1f8df6645b0366d08825ca1522e0c
+  languageName: node
+  linkType: hard
+
 "@types/unist@npm:*, @types/unist@npm:^3.0.0":
   version: 3.0.3
   resolution: "@types/unist@npm:3.0.3"
@@ -9796,6 +9812,18 @@ __metadata:
   languageName: node
   linkType: hard
 
+"dompurify@npm:*, dompurify@npm:^3.4.0":
+  version: 3.4.0
+  resolution: "dompurify@npm:3.4.0"
+  dependencies:
+    "@types/trusted-types": "npm:^2.0.7"
+  dependenciesMeta:
+    "@types/trusted-types":
+      optional: true
+  checksum: 10c0/5593ac44ee20b9aa521c2120884effc98927fb9128c548183c75e79e0a04357c62ee913a049a267c8f396cb8c9d520ecf72562826c5524c46d4fe03c12063638
+  languageName: node
+  linkType: hard
+
 "domutils@npm:^2.4.2":
   version: 2.8.0
   resolution: "domutils@npm:2.8.0"
@@ -19430,6 +19458,7 @@ __metadata:
     "@tiptap/starter-kit": "npm:^3.11.0"
     "@tiptap/suggestion": "npm:^3.11.0"
     "@types/dagre": "npm:^0.7.53"
+    "@types/dompurify": "npm:^3.2.0"
     "@types/node": "npm:^24.10.0"
     "@types/react": "npm:^19.2.7"
     "@types/react-dom": "npm:^19.2.3"
@@ -19437,6 +19466,7 @@ __metadata:
     "@xyflow/react": "npm:^12.9.3"
     dagre: "npm:^0.8.5"
     dayjs: "npm:^1.11.19"
+    dompurify: "npm:^3.4.0"
     framer-motion: "npm:^12.23.24"
     juice: "npm:^11.0.3"
     lucide-react: "npm:^0.553.0"