## Summary

Closes elastic/appex-qa-team#708

### Adds Scout support for plugins located in `/examples`, in
particular:

- scout playwright config discovery
- stateful shared config to use for all plugins (saves CI runtime by
avoiding restarts)
- registration in `scout_ci_config.yml` for CI run

### Code change:

`loadScoutManifestFile` reads the Scout .meta/*.json next to a
Playwright config (test ids, tags, etc.), or returns a placeholder when
that file is not present so fromPath still works. It was extracted so
both the regular plugin/package path parsing and the new `examples/`
path parsing share the same manifest-loading logic instead of
duplicating it.

---------

Co-authored-by: Stelios Mavro <81311181+steliosmavro@users.noreply.github.com>
Co-authored-by: kibanamachine <42973632+kibanamachine@users.noreply.github.com>
(cherry picked from commit 4c8724b)

# Conflicts:
#	examples/flyout_system/kibana.jsonc