Add support for "Won't Do" (abandoned) task status

[krisrowe]

Summary

The TickTick API supports three task status values:

• 0 = Open/Normal
• 2 = Completed
• -1 = Abandoned ("Won't Do")

Currently, complete_task only sets status: 1 (which may not be correct) or status: 2. There's no way to mark a task as "Won't Do" via the MCP tools.

Proposed Changes

1. Update update_task - The tool already accepts a status parameter. Update the description to document all valid values: 0 (open), 2 (completed), -1 (won't do)

2. Fix complete_task - Currently sets status: 1. Should set status: 2 per the API.

3. Consider abandon_task tool (optional) - A dedicated tool similar to complete_task for marking tasks as "Won't Do"

References

• tickthon library - Documents status codes in Task model
• Dida365/TickTick API Client - Confirms status 0 and 2