fix: sync bridge HTTP tool deps and product timeout from test deployment

bridge/src/tools.js

@@ -377,8 +377,19 @@ function createTools(cfg, deps = {}) {
     const query = String(args.query || '').trim();
     if (!query) throw new ToolError(400, 'invalid_arguments', 'query is required');
     const limit = Math.min(Number(args.limit) || 5, 8);
-    let results = await retriever.searchKB(query, Math.max(limit, 8));
+    // 有 reranker 时多取候选再重排；无 reranker 时尊重调用方 limit。
+    const fetchLimit = reranker ? Math.max(limit, 8) : limit;
+    let results = await retriever.searchKB(query, fetchLimit);
+    // parent/child 可能命中同一篇文章：按 question+answer 去重
+    const seen = new Set();
+    results = results.filter((r) => {
+      const key = `${r.question || ''}\u0000${r.answer || ''}`;
+      if (seen.has(key)) return false;
+      seen.add(key);
+      return true;
+    });
     if (reranker) results = await reranker.rerank(query, results, limit);
+    else results = results.slice(0, limit);
     return {
       results,
       count: results.length,