feat(etcd): rewrite agent in Go and add v2 API support

apps/desktop/src/lib/__tests__/connection/etcdConnectionDialog.spec.ts

@@ -0,0 +1,35 @@
+import { readFileSync } from "node:fs";
+import { describe, expect, it } from "vitest";
+import { CONNECTION_PICKER_OPTIONS, CONNECTION_PROFILES } from "@/types/generated/connectionProfiles";
+
+const dialogSource = readFileSync(new URL("../../../components/connection/ConnectionDialog.vue", import.meta.url), "utf8");
+const browserSource = readFileSync(new URL("../../../components/etcd/EtcdKeyBrowser.vue", import.meta.url), "utf8");
+
+describe("etcd connection dialog API versions", () => {
+  it("offers v3 and v2 API profile switches", () => {
+    expect(dialogSource).toContain("@click=\"switchEtcdApiVersion('etcd')\"");
+    expect(dialogSource).toContain("@click=\"switchEtcdApiVersion('etcd-v2')\"");
+    expect(dialogSource).toContain("v3 (etcd 3.x)");
+    expect(dialogSource).toContain("v2 (etcd 2.x)");
+  });
+
+  it("hydrates the v2 profile without exposing a second catalog entry", () => {
+    expect(CONNECTION_PROFILES["etcd-v2"]).toMatchObject({ type: "etcd", port: 2379 });
+    expect(CONNECTION_PICKER_OPTIONS.some((option) => option.value === "etcd-v2")).toBe(false);
+  });
+});
+
+describe("etcd v2 feature trimming", () => {
+  it("detects the v2 profile from the connection config", () => {
+    expect(browserSource).toContain('connectionStore.getConfig(props.connectionId)?.driver_profile === "etcd-v2"');
+  });
+
+  it("hides key history for v2 connections", () => {
+    expect(browserSource).toContain("history: isV2Api.value ? undefined : api.etcdHistory");
+  });
+
+  it("hides lease binding and the maintenance/lease workspaces for v2 connections", () => {
+    expect(browserSource).toContain(':supports-lease-binding="!isV2Api"');
+    expect(browserSource).toContain('<Button v-if="!isV2Api"');
+  });
+});