Enhanced Google Calendar Event Management

I want my existing Google Calendar workflow to do more of the heavy lifting for me. The main focus is better event management:

• Recurring events – I’d like a way to set them up once and have the system handle any future changes automatically, including date shifts, skipped holidays, or pattern edits without manual cleanup.
• Task integration – every event should optionally generate a linked task in Google Tasks (or an equivalent list inside Workspace) so nothing slips through the cracks.
• Custom notifications – default pop-ups aren’t enough. I need flexible alerts (email, push, or SMS), different lead times per event type, and the ability to silence certain occurrences while keeping others active.

Ideally this is handled through Google Apps Script or a lightweight add-on so everything remains inside my Workspace environment with minimal maintenance. When you’re done, I expect documented code, a quick setup guide, and a brief demo showing the features in action.