Watchdog notify crash root-caused: iOS companion schema rejects data.clickAction; url is the iOS deep-link key. Suite updated to assert url presence per alert. https://projects.knownelement.com/issues/778
tests/test_sdlc.sh: alert-twin presence, per-alert deep-link check, watchdog coverage, ghost-entity + secret guards. Runs as a CI step. https://projects.knownelement.com/issues/778