feat: add Z.AI env support and live test

src/agents/zai.live.test.ts

@@ -0,0 +1,31 @@
+import { completeSimple, getModel } from "@mariozechner/pi-ai";
+import { describe, expect, it } from "vitest";
+
+const ZAI_KEY = process.env.ZAI_API_KEY ?? process.env.Z_AI_API_KEY ?? "";
+const LIVE = process.env.ZAI_LIVE_TEST === "1" || process.env.LIVE === "1";
+
+const describeLive = LIVE && ZAI_KEY ? describe : describe.skip;
+
+describeLive("zai live", () => {
+  it("returns assistant text", async () => {
+    const model = getModel("zai", "glm-4.7");
+    const res = await completeSimple(
+      model,
+      {
+        messages: [
+          {
+            role: "user",
+            content: "Reply with the word ok.",
+            timestamp: Date.now(),
+          },
+        ],
+      },
+      { apiKey: ZAI_KEY, maxTokens: 64 },
+    );
+    const text = res.content
+      .filter((block) => block.type === "text")
+      .map((block) => block.text.trim())
+      .join(" ");
+    expect(text.length).toBeGreaterThan(0);
+  });
+});