Cover empty-after-NBSP baseURL validation paths

Co-authored-by: Eric Allam <eric@trigger.dev>

Author: cursoragent

packages/ai/src/chatTransport.test.ts

@@ -688,6 +688,17 @@ describe("TriggerChatTransport", function () {
     }).toThrowError("baseURL must not be empty");
   });
 
+  it("throws when baseURL is empty after trimming non-breaking spaces", function () {
+    expect(function () {
+      new TriggerChatTransport({
+        task: "chat-task",
+        accessToken: "pk_trigger",
+        baseURL: "\u00A0///\u00A0",
+        stream: "chat-stream",
+      });
+    }).toThrowError("baseURL must not be empty");
+  });
+
   it("uses default baseURL when omitted", function () {
     expect(function () {
       new TriggerChatTransport({
@@ -3207,6 +3218,17 @@ describe("TriggerChatTransport", function () {
     }).toThrowError("baseURL must not be empty");
   });
 
+  it("throws from factory when baseURL is empty after trimming non-breaking spaces", function () {
+    expect(function () {
+      createTriggerChatTransport({
+        task: "chat-task",
+        accessToken: "pk_trigger",
+        baseURL: "\u00A0///\u00A0",
+        stream: "chat-stream",
+      });
+    }).toThrowError("baseURL must not be empty");
+  });
+
   it("uses default baseURL in factory when omitted", function () {
     expect(function () {
       createTriggerChatTransport({