test(cli): harden agent output e2e parsing

Author: jgoux

apps/cli/src/legacy/cli/agent-output.e2e.test.ts

@@ -1,8 +1,29 @@
 import { describe, expect, test } from "vitest";
 import { runSupabase } from "../../../tests/helpers/cli.ts";
 
+function stripAnsi(output: string): string {
+  let stripped = "";
+  for (let i = 0; i < output.length; i++) {
+    const charCode = output.charCodeAt(i);
+    if (charCode !== 0x1b || output[i + 1] !== "[") {
+      stripped += output[i];
+      continue;
+    }
+
+    i += 2;
+    while (i < output.length) {
+      const code = output.charCodeAt(i);
+      if (code >= 0x40 && code <= 0x7e) {
+        break;
+      }
+      i++;
+    }
+  }
+  return stripped;
+}
+
 function parseJsonLines(output: string): Array<unknown> {
-  return output
+  return stripAnsi(output)
     .trim()
     .split("\n")
     .filter((line) => line.length > 0)