documentation server and /doc route

Signed-off-by: ngn <ngn@ngn.tf>

app/package-lock.json

@@ -9,6 +9,7 @@
       "version": "6.0",
       "dependencies": {
         "@types/dompurify": "^3.2.0",
+        "marked": "^15.0.6",
         "svelte-i18n": "^4.0.1"
       },
       "devDependencies": {
@@ -1396,6 +1397,18 @@
         "@jridgewell/sourcemap-codec": "^1.5.0"
       }
     },
+    "node_modules/marked": {
+      "version": "15.0.6",
+      "resolved": "https://registry.npmjs.org/marked/-/marked-15.0.6.tgz",
+      "integrity": "sha512-Y07CUOE+HQXbVDCGl3LXggqJDbXDP2pArc2C1N1RRMN0ONiShoSsIInMd5Gsxupe7fKLpgimTV+HOJ9r7bA+pg==",
+      "license": "MIT",
+      "bin": {
+        "marked": "bin/marked.js"
+      },
+      "engines": {
+        "node": ">= 18"
+      }
+    },
     "node_modules/memoizee": {
       "version": "0.4.17",
       "resolved": "https://registry.npmjs.org/memoizee/-/memoizee-0.4.17.tgz",