Mirrors the PACKAGE_VERSIONS cache in utils/install_util.py. Installed
package versions don't change over the lifetime of the process, so a
one-shot module-level cache makes /system_stats polling effectively free
instead of doing N importlib.metadata.version() lookups per call.
The frontend is itself a comfy* package, so check_frontend_version() is
folded into check_comfy_packages_versions(), removing the duplication.
/system_stats gains a comfy_package_versions list (purely additive).
Adds installed and required workflow templates version information to the
/system_stats endpoint, allowing the frontend to detect and notify users
when their templates package is outdated.
- Add get_installed_templates_version() and get_required_templates_version()
methods to FrontendManager
- Include templates version info in system_stats response
- Add comprehensive unit tests for the new functionality
* Added the parameter required_frontend_version in the /system_stats api response
* Update server.py
* Created a function get_required_frontend_version and wrote tests for it
* Refactored the function to return currently installed frontend pacakage version
* Moved required_frontend to a new function and imported that in server.py
* Corrected test cases using mocking techniques
* Corrected files to comply with ruff formatting
* Add frontend manager
* Add tests
* nit
* Add unit test to github CI
* Fix path
* nit
* ignore
* Add logging
* Install test deps
* Remove 'stable' keyword support
* Update test
* Add web-root arg
* Rename web-root to front-end-root
* Add test on non-exist version number
* Use repo owner/name to replace hard coded provider list
* Inline cmd args
* nit
* Fix unit test
