fix(reactor): drive auto-focus workspace switch from NSWorkspace activations

[bhedavivek]

Closes #402.

Change

Event::ApplicationGloballyActivated, sent by the wm_controller when NSWorkspace fires didActivateApplication, now also dispatches to AppEventHandler::handle_application_activated. The login-window short-circuit still runs first; the new call only fires for non-login activations. Quiet::No is passed.

Before this change, handle_application_activated is only invoked from Event::ApplicationActivated, which originates in actor::app::on_activation_changed. After this change, Cmd+Tab and dock activations of an app on another virtual workspace switch the active workspace.

The activated app's bundle id is now resolved from app_manager.apps instead of NSRunningApplication::with_process_id. The reactor already records every running app's AppInfo when ApplicationLaunched is processed, and NSRunningApplication is not reachable from unit tests. The early returns when the app is not tracked or has no CFBundleIdentifier preserve the existing observable behavior.

Tests

Six new unit tests in src/actor/reactor/tests.rs covering the positive switch path and each early-exit:

• globally_activated_app_on_other_workspace_switches_to_apps_workspace — activating an app pinned to a different workspace switches the active workspace to that workspace.
• globally_activated_app_on_visible_workspace_does_not_switch — exits at app_is_on_visible_workspace.
• globally_activated_blacklisted_app_does_not_switch_workspace — exits at the auto_focus_blacklist check.
• globally_activated_login_window_does_not_drive_auto_switch — login-window short-circuit fires; new dispatch is skipped.
• globally_activated_app_without_bundle_id_does_not_switch — app tracked by rift but with no CFBundleIdentifier exits at the bundle-id check.
• globally_activated_untracked_pid_does_not_switch — pid not present in app_manager.apps exits at the lookup.

cargo test --lib actor::reactor — 57 passing (was 51 before this PR).

Manual repro

macOS 26.5 / arm64, single display. Built cargo build --release, pointed ~/Library/LaunchAgents/git.acsandmann.rift.plist at the patched binary, granted Accessibility to the new binary path, restarted via launchctl bootout + bootstrap. With these app_rules:

app_rules = [
  { app_id = "com.tinyspeck.slackmacgap",  workspace = 1 },
  { app_id = "us.zoom.xos",                workspace = 2 },
  { app_id = "company.thebrowser.Browser", workspace = 4 },
  { app_id = "com.mitchellh.ghostty",      workspace = 5 },
]

Starting from workspace 0, Cmd+Tab switched the active workspace as expected for every app with a CFBundleIdentifier and a current AXStandardWindow:

• Cmd+Tab to Slack → active workspace becomes 1.
• Cmd+Tab to Arc → active workspace becomes 4.
• Cmd+Tab to Ghostty → active workspace becomes 5.
• Cmd+Tab back to OpenCode → active workspace becomes 0.

Two cases did not switch, matching the existing limits of handle_app_activation_workspace_switch:

• An app without a CFBundleIdentifier (a Cargo debug binary). Exits at the bundle-id check.
• An app with no current AXStandardWindow (Zoom between meetings). Exits at the app_window_id lookup.

Manual Alt+N switching, switch_to_last_workspace, and MoveWindowToWorkspace continue to work unchanged. Not tested on multi-display, scrolling, or master-stack.

[bhedavivek]

closing as a dup of #400