fix(notifications): gate overlay delivery on visible overlay; default to

- Default notificationType fallback changed from 'overlay' to 'osd'
- isVisibleOverlayContentReady guards on overlay visible + window ready
- All overlay hide paths dismiss loading OSD notification
- notifyConfiguredStatus falls back to desktop when overlay not ready
- anilist deps builder preserves undefined optional callbacks as undefined
- settingsEnumValues field added to ConfigOptionRegistryEntry
- Drop !important from z-index; lower yomitan popup z-index below notification stack

src/main/runtime/anilist-setup-protocol-main-deps.ts

@@ -18,10 +18,12 @@ type RegisterSubminerProtocolClientMainDeps = Parameters<
 
 export function createBuildNotifyAnilistSetupMainDepsHandler(deps: NotifyAnilistSetupMainDeps) {
   return (): NotifyAnilistSetupMainDeps => ({
-    getNotificationType: () => deps.getNotificationType?.(),
+    getNotificationType: deps.getNotificationType ? () => deps.getNotificationType?.() : undefined,
     hasMpvClient: () => deps.hasMpvClient(),
     showMpvOsd: (message: string) => deps.showMpvOsd(message),
-    showOverlayNotification: (payload) => deps.showOverlayNotification?.(payload),
+    showOverlayNotification: deps.showOverlayNotification
+      ? (payload) => deps.showOverlayNotification?.(payload)
+      : undefined,
     showDesktopNotification: (title: string, options: { body: string }) =>
       deps.showDesktopNotification(title, options),
     logInfo: (message: string) => deps.logInfo(message),