fix(mobile): route phone APIs to selected profile and unblock runtime readiness

apps/desktop/electron/mobile-backend.test.ts

@@ -0,0 +1,48 @@
+import { expect, it, vi } from 'vitest'
+
+import { createMobileBackendResolver } from './mobile-backend'
+
+const local = { mode: 'local', baseUrl: 'http://127.0.0.1:12345', token: 'test-session' }
+
+it('uses the phone profile even while another desktop profile is awaiting setup', async () => {
+  const ensureBackend = vi.fn(async (profile: string) => {
+    if (profile === 'fusion-frontier') return new Promise<typeof local>(() => {})
+    return local
+  })
+  const resolve = createMobileBackendResolver({
+    isRemote: () => false,
+    runtimeNeedsInstall: () => false,
+    ensureBackend
+  })
+  expect(await resolve('default')).toEqual({ baseUrl: local.baseUrl, token: local.token })
+  expect(ensureBackend).toHaveBeenCalledExactlyOnceWith('default')
+})
+
+it('never bootstraps an absent runtime or silently replaces a remote profile with default', async () => {
+  const ensureBackend = vi.fn(async () => local)
+  const resolve = createMobileBackendResolver({
+    isRemote: profile => profile === 'remote',
+    runtimeNeedsInstall: () => true,
+    ensureBackend
+  })
+  await expect(resolve('default')).rejects.toThrow('runtime_not_ready')
+  await expect(resolve('remote')).rejects.toThrow('remote_mode')
+  expect(ensureBackend).not.toHaveBeenCalled()
+})
+
+it('preserves an explicitly selected local profile and rejects remote-mode changes during resolution', async () => {
+  let remote = false
+  const ensureBackend = vi.fn(async () => local)
+  const resolve = createMobileBackendResolver({
+    isRemote: () => remote,
+    runtimeNeedsInstall: () => false,
+    ensureBackend
+  })
+  await resolve('kodlama')
+  expect(ensureBackend).toHaveBeenCalledExactlyOnceWith('kodlama')
+  ensureBackend.mockImplementationOnce(async () => {
+    remote = true
+    return local
+  })
+  await expect(resolve('kodlama')).rejects.toThrow('remote_mode')
+})