fix: CLAUDE.md compatibility for GEMINI.md '@' file import behavior (#2978)

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Co-authored-by: Allen Hutchison <adh@google.com>

package-lock.json

@@ -14,6 +14,7 @@
         "gemini": "bundle/gemini.js"
       },
       "devDependencies": {
+        "@types/marked": "^5.0.2",
         "@types/micromatch": "^4.0.9",
         "@types/mime-types": "^3.0.1",
         "@types/minimatch": "^5.1.2",
@@ -2338,6 +2339,13 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/@types/marked": {
+      "version": "5.0.2",
+      "resolved": "https://registry.npmjs.org/@types/marked/-/marked-5.0.2.tgz",
+      "integrity": "sha512-OucS4KMHhFzhz27KxmWg7J+kIYqyqoW5kdIEI319hqARQQUTqhao3M/F+uFnDXD0Rg72iDDZxZNxq5gvctmLlg==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@types/micromatch": {
       "version": "4.0.9",
       "resolved": "https://registry.npmjs.org/@types/micromatch/-/micromatch-4.0.9.tgz",
@@ -7687,6 +7695,18 @@
         "node": ">=10"
       }
     },
+    "node_modules/marked": {
+      "version": "15.0.12",
+      "resolved": "https://registry.npmjs.org/marked/-/marked-15.0.12.tgz",
+      "integrity": "sha512-8dD6FusOQSrpv9Z1rdNMdlSgQOIP880DHqnohobOmYLElGEqAL/JvxvuxZO16r4HtjTlfPRDC1hbvxC9dPN2nA==",
+      "license": "MIT",
+      "bin": {
+        "marked": "bin/marked.js"
+      },
+      "engines": {
+        "node": ">= 18"
+      }
+    },
     "node_modules/math-intrinsics": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/math-intrinsics/-/math-intrinsics-1.1.0.tgz",
@@ -11861,6 +11881,7 @@
         "html-to-text": "^9.0.5",
         "https-proxy-agent": "^7.0.6",
         "ignore": "^7.0.0",
+        "marked": "^15.0.12",
         "micromatch": "^4.0.8",
         "open": "^10.1.2",
         "shell-quote": "^1.8.3",