freehire-search: lean search uses the web endpoint; drop unread params (#631)

semantic_ratio and include_description are both reported in
meta.ignored_params. With include_description ignored, the agent endpoint
hydrates every full body from the database, and --no-description threw
that payload away client-side. Send --no-description to /api/v1/jobs/search,
which serves only the preview, and stop sending the two unread params.

.agents/skills/freehire-search/cli/tests/required-search-values.test.ts

@@ -55,7 +55,7 @@ describe("named search flags require their documented values", () => {
       expect(params.getAll("skills")).toEqual(["go", "kubernetes"]);
       expect(params.get("company_slug")).toBe("acme");
       expect(params.get("work_mode")).toBe("remote");
-      expect(params.get("include_description")).toBe("false");
+      expect(requests[0].pathname).toBe("/api/v1/jobs/search");
     } finally {
       server.stop(true);
     }