refactor(agent): normalize API naming

src/server.ts

@@ -314,6 +314,21 @@ const parseStringArray = (value: unknown) =>
     ? value.filter((item): item is string => typeof item === "string")
     : undefined;
 
+const webSearchFreshnessMap: Record<string, string> = {
+  no_limit: "noLimit",
+  one_day: "oneDay",
+  one_week: "oneWeek",
+  one_month: "oneMonth",
+  one_year: "oneYear",
+};
+
+const normalizeWebSearchFreshness = (value: unknown) => {
+  if (typeof value !== "string") {
+    return undefined;
+  }
+  return webSearchFreshnessMap[value] ?? value;
+};
+
 const AUTH_EXPIRY_SKEW_MS = 30_000;
 
 function isRuntimeAuthExpired(context: RuntimeSessionContext) {
@@ -369,8 +384,7 @@ app.post("/internal/tools/web-search", async (req, res) => {
       : undefined;
   const payload = {
     query,
-    freshness:
-      typeof req.body?.freshness === "string" ? req.body.freshness : undefined,
+    freshness: normalizeWebSearchFreshness(req.body?.freshness),
     summary:
       typeof req.body?.summary === "boolean" ? req.body.summary : undefined,
     count,