fix(cli): turn off onnxruntime telemetry for Kokoro synthesis (#5425)

onnxruntime's 1DS telemetry, on by default in its macOS wheels, can abort the
Python process at exit when an upload response races teardown. execFileSync
then throws for a line whose WAV was already written, and the audio skill drops
it as non-fatal.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

packages/cli/src/tts/synthesize.cache.test.ts

@@ -53,6 +53,14 @@ describe("synthesis script cache", () => {
     fs.rmSync(paths.home, { recursive: true, force: true });
   });
 
+  it("turns off onnxruntime telemetry for the synthesis process", async () => {
+    const { synthesize } = await import("./synthesize.js");
+    await synthesize("Hello", outputPath);
+
+    const options = vi.mocked(execFileSync).mock.calls.at(-1)?.[2];
+    expect(options?.env?.ORT_DISABLE_TELEMETRY).toBe("1");
+  });
+
   it("creates the script, removes only old script versions, and reuses the current cache", async () => {
     fs.writeFileSync(join(cacheDir, "synth-v2.py"), "old script");
     fs.writeFileSync(join(cacheDir, "notes.txt"), "keep");

packages/cli/src/tts/synthesize.ts

@@ -202,6 +202,7 @@ export async function synthesize(
         encoding: "utf-8",
         timeout: 300_000,
         stdio: ["pipe", "pipe", "pipe"],
+        env: { ...process.env, ORT_DISABLE_TELEMETRY: "1" },
       },
     );