feat: 参数化检索链路与注入语义

tests/default-settings.mjs

@@ -0,0 +1,37 @@
+import assert from "node:assert/strict";
+import fs from "node:fs/promises";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import vm from "node:vm";
+
+async function loadDefaultSettings() {
+  const __dirname = path.dirname(fileURLToPath(import.meta.url));
+  const indexPath = path.resolve(__dirname, "../index.js");
+  const source = await fs.readFile(indexPath, "utf8");
+  const settingsMatch = source.match(/const defaultSettings = \{[\s\S]*?^\};/m);
+
+  if (!settingsMatch) {
+    throw new Error("无法从 index.js 提取 defaultSettings");
+  }
+
+  const context = vm.createContext({});
+  const script = new vm.Script(`
+${settingsMatch[0]}
+this.defaultSettings = defaultSettings;
+`);
+  script.runInContext(context);
+  return context.defaultSettings;
+}
+
+const defaultSettings = await loadDefaultSettings();
+
+assert.equal(defaultSettings.extractContextTurns, 2);
+assert.equal(defaultSettings.recallTopK, 20);
+assert.equal(defaultSettings.recallMaxNodes, 8);
+assert.equal(defaultSettings.recallEnableVectorPrefilter, true);
+assert.equal(defaultSettings.recallEnableGraphDiffusion, true);
+assert.equal(defaultSettings.recallDiffusionTopK, 100);
+assert.equal(defaultSettings.recallLlmCandidatePool, 30);
+assert.equal(defaultSettings.injectDepth, 9999);
+
+console.log("default-settings tests passed");