Add a markdown viewer for .md files and live typed preview.

Render GitHub-flavored markdown in the browser with marked and sanitize HTML with DOMPurify.

Co-authored-by: Cursor <cursoragent@cursor.com>

packages/frontend/package.json

@@ -27,11 +27,13 @@
     "@rhwp/editor": "^0.7.18",
     "@vueuse/core": "^11.3.0",
     "ag-psd": "^31.0.2",
+    "dompurify": "^3.4.15",
     "draco3d": "^1.5.7",
     "element-plus": "^2.14.3",
     "fflate": "^0.8.2",
     "jscanify": "^1.4.3",
     "lodash-es": "^4.17.21",
+    "marked": "^16.4.2",
     "mermaid": "^11.16.0",
     "occt-import-js": "^0.0.22",
     "online-3d-viewer": "^0.18.0",
@@ -52,6 +54,7 @@
     "@fontsource-variable/noto-sans-kr": "^5.3.0",
     "@fontsource/noto-sans-kr": "^5.3.0",
     "@noto-pdf-ts/fonts-kr": "^0.0.1-alpha.0",
+    "@types/dompurify": "^3.0.5",
     "@types/react": "^19.2.17",
     "@types/react-dom": "^19.2.3",
     "@types/three": "^0.172.0",