Calendar Event Insert

This tool creates a new event in a specified Google Calendar using the Google Calendar API v3. It accepts an OAuth 2.0 Bearer authToken, a calendarId to target, and event fields including summary, start, end, optional description, and optional location. Start and end must be ISO 8601 or RFC 3339 date-time strings with timezone. The tool uses these inputs to construct a request and returns the created event resource, including its ID and status. The returned JSON must strictly validate against the system-provided structured output schema that is auto-produced for this tool.