feat(live-atc): local speech bridge discovery composable

app/composables/useLocalSpeechBridge.test.ts

@@ -0,0 +1,22 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest'
+import { probeLocalSpeech } from './useLocalSpeechBridge'
+
+describe('probeLocalSpeech', () => {
+  beforeEach(() => vi.restoreAllMocks())
+
+  it('returns the base url of the first ready port', async () => {
+    vi.stubGlobal('fetch', vi.fn(async (url: string) => {
+      if (url.includes('8765')) return { ok: true, json: async () => ({ ok: true, ready: false }) } as any
+      if (url.includes('8766')) return { ok: true, json: async () => ({ ok: true, ready: true }) } as any
+      throw new Error('refused')
+    }))
+    const base = await probeLocalSpeech([8765, 8766, 8767])
+    expect(base).toBe('http://127.0.0.1:8766')
+  })
+
+  it('returns null when nothing is ready', async () => {
+    vi.stubGlobal('fetch', vi.fn(async () => { throw new Error('refused') }))
+    const base = await probeLocalSpeech([8765, 8766])
+    expect(base).toBeNull()
+  })
+})