ci: run the macOS computer-use smoke only for macOS-relevant changes (#34325)

The owner-loss smoke builds the Swift helper and forks the computer sidecar;
neither imports src/cli or src/main/daemon, yet those paths started the paid
macOS runner on every computer-e2e trigger. Move it to its own workflow with
the macOS-relevant subset of the old paths.

Co-authored-by: OrcaWin <293788423+OrcaWin@users.noreply.github.com>

.github/workflows/computer-e2e.yml

@@ -134,36 +134,6 @@ jobs:
       - name: Windows daemon workspace-close repro
         if: runner.os == 'Windows'
         run: node config/scripts/windows-daemon-workspace-close-repro.mjs
-  # Hosted macOS runners cannot receive persistent Accessibility/Screen Recording
-  # grants. Keep the real native build/owner-loss checks on every trigger instead.
-  mac-native-owner-smoke:
-    if: github.event_name != 'pull_request' || github.event.pull_request.draft != true
-    runs-on: blacksmith-6vcpu-macos-15
-    permissions:
-      contents: read
-    steps:
-      - uses: actions/checkout@v6
-        with:
-          persist-credentials: false
-      - uses: ./.github/actions/install-node-dependencies
-        with:
-          native-runtime: electron
-      - name: Owner-loss benchmark process cleanup
-        run: >-
-          pnpm vitest run
-          config/scripts/macos-computer-helper-owner-loss-group-recovery.test.mjs
-          config/scripts/macos-computer-helper-owner-loss-processes.test.mjs
-      # Why: the parallel launcher's cancellation tests are darwin-only and no
-      # other PR job runs on macOS.
-      - name: Parallel native build launcher cancellation
-        run: >-
-          pnpm vitest run --config config/vitest.config.ts
-          config/scripts/build-native-for-platform.test.mjs
-      - name: Authenticated helper owner-loss smoke
-        run: pnpm bench:macos-computer-helper-owner-loss --expect reaped --trials 1
-      - name: Swift tests and signed universal helper verification
-        run: pnpm verify:computer-native
-
   linux:
     if: github.event_name != 'pull_request'
     runs-on: blacksmith-4vcpu-ubuntu-2204