Diagnose CometChat Angular UI Kit v5 (@cometchat/chat-uikit-angular@5) integration failures — peer-dep / Angular-version mismatch, standalone-import 'is not a known element', init-before-render race, assets config, height/layout, NgZone change-detection, CSS-variable theming, SSR 'window is not defi
Diagnose CometChat Angular UI Kit v5 (@cometchat/chat-uikit-angular@5) integration failures — peer-dep / Angular-version mismatch, standalone-import 'is not a known element', init-before-render race, assets config, height/layout, NgZone change-detection, CSS-variable theming, SSR 'window is not defined', and production auth-token errors.