Add caltask extension

[jujuyuzu]

Description

CalTask is a productivity extension for tracking tasks with a timer and exporting them to Mac Calendar.

Features:

• CalTask Timer: Start/stop task timer with one click, auto-export to Mac Calendar when timer stops, auto-suggest recent tasks, assign tasks to specific calendars, add notes and URLs
• CalTask Report: Generate time reports from Mac Calendar events, filter by time range, view time breakdown by calendar with real calendar colors
• Menu Bar: Shows current task timer in the menu bar with elapsed time

Requirements:

• macOS only (uses native Calendar integration via AppleScript and EventKit)
• CalTask Report requires Xcode Command Line Tools (xcode-select --install)

Screencast

Screen.Recording.2026-02-10.at.1.08.37.am.mov

Checklist

• I read the extension guidelines
• I read the documentation about publishing
• I ran npm run build and tested this distribution build in Raycast
• I checked that files in the assets folder are used by the extension itself
• I checked that assets used by the README are placed outside of the metadata folder