elastic: update problemId token

packages/elastic/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@hydrooj/elastic-search",
-    "version": "1.0.7",
+    "version": "1.0.8",
     "main": "package.json",
     "repository": "https://github.com/hydro-dev/Hydro",
     "author": "undefined <i@undefined.moe>",

packages/elastic/script.ts

@@ -16,10 +16,10 @@ const processDocument = (doc: Partial<ProblemDoc>) => {
     }
     if (doc.title) {
         doc.title = doc.title.replace(/[[\]【】()（）]/g, ' ')
-            .replace(/([a-zA-Z]{2,})/, (a) => `${a} `);
+            .replace(/([a-zA-Z]{2,})(\d+)/, '$1$2 $1 $2');
     }
     if (doc.pid) {
-        doc.pid = doc.pid.replace(/([a-zA-Z]{2,})/, (a) => `${a} `);
+        doc.pid = doc.pid.replace(/([a-zA-Z]{2,})(\d+)/, '$1$2 $1 $2');
     }
     return omit(doc, indexOmit);
 };