<!-- Add the related story/sub-task/bug number, like Resolves#123, or
remove if NA -->
**Related issue:** Related to #45524
# Checklist for submitter
If some of the following don't apply, delete the relevant line.
- [x] Input data is properly validated, `SELECT *` is avoided, SQL
injection is prevented (using placeholders for values in statements), JS
inline code is prevented especially for url redirects, and untrusted
data interpolated into shell scripts/commands is validated against shell
metacharacters.
- [x] Timeouts are implemented and retries are limited to avoid infinite
loops
- [x] If paths of existing endpoints are modified without backwards
compatibility, checked the frontend/CLI for any necessary changes
## Testing
- [x] QA'd all new/changed functionality manually
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
## Summary
* **New Features**
* Added `fleet://install_all` and `fleet://install-all` deep links with
optional `category_id` to open the scoped self-service page and guide
the install-all confirmation flow.
* **Bug Fixes**
* Improved macOS single-instance behavior by forwarding deep links and
relaunch/reopen events to the already-running window.
* Hardened SSO/auth navigation and external-link handling to prevent
expired flows and stranded pages.
* Improved download filename safety and ensured recovery back to the
home view.
* Strengthened configuration and device token validation; refined
install/badge update timing.
* **Chores**
* Bumped version to 1.4.0, enforced single-instance in the app bundle,
and parallelized Intel/Apple Silicon builds.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---------
Co-authored-by: Allen Houchins <allenhouchins@mac.com>
