Function dispatchShareNotificationAfterSave

Post-save share-notification dispatcher for extended permission entities. Call immediately after super.Save(options) returns true:

const saved = await super.Save(options);
if (saved) {
    await dispatchShareNotificationAfterSave(this, isNewShare, async (provider, grantorId) => {
        return { Provider: provider, ContextUser: this.ContextCurrentUser, … };
    });
}
return saved;
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Handles the boilerplate each previous implementation repeated:

• bail on client-side saves (ProviderType !== 'Database')
• bail on updates (isNewShare === false)
• resolve the effective grantor ID (falls back to ContextCurrentUser.ID)
• let payloadBuilder return null to skip (e.g., Role-grantee ACRs)
• fire-and-forget via void CreateShareNotification(...) — notification failures never fail the save.