chore: upgrade marked 15→17 (ReDoS fix, list rendering improvements)

package-lock.json

@@ -12,7 +12,7 @@
         "express": "^4.21.0",
         "express-rate-limit": "^7.5.0",
         "helmet": "^8.0.0",
-        "marked": "^15.0.0",
+        "marked": "^17.0.4",
         "nanoid": "^5.0.0",
         "nodemailer": "^8.0.2",
         "pg": "^8.20.0",
@@ -2953,15 +2953,15 @@
       }
     },
     "node_modules/marked": {
-      "version": "15.0.12",
-      "resolved": "https://registry.npmjs.org/marked/-/marked-15.0.12.tgz",
-      "integrity": "sha512-8dD6FusOQSrpv9Z1rdNMdlSgQOIP880DHqnohobOmYLElGEqAL/JvxvuxZO16r4HtjTlfPRDC1hbvxC9dPN2nA==",
+      "version": "17.0.4",
+      "resolved": "https://registry.npmjs.org/marked/-/marked-17.0.4.tgz",
+      "integrity": "sha512-NOmVMM+KAokHMvjWmC5N/ZOvgmSWuqJB8FoYI019j4ogb/PeRMKoKIjReZ2w3376kkA8dSJIP8uD993Kxc0iRQ==",
       "license": "MIT",
       "bin": {
         "marked": "bin/marked.js"
       },
       "engines": {
-        "node": ">= 18"
+        "node": ">= 20"
       }
     },
     "node_modules/math-intrinsics": {