Add configurable widget display settings

[jvortmann]

Summary

The widget hardcodes a 10-task cap and always sorts by ID, which hides newer tasks and offers no way to customize the display. This PR adds five new settings to control how tasks are shown in the widget, all accessible from the /tasks → Settings menu.

This is based on top of #21 .

New Settings

showAll (default: false)

When true, every task is shown regardless of the visible limit.

{ "showAll": true }

maxVisible (default: 10)

Caps how many task lines the widget shows. Only applies when showAll is false. Configurable via menu: 5, 10, 15, 20, 30, 50, 100.

{ "showAll": false, "maxVisible": 20 }

sortOrder (default: "id")

Controls task sort order in the widget:

• "id" — creation order (existing behaviour)
• "status" — groups by completed → in-progress → pending
• "recent" — most recently updated first
• "oldest" — least recently updated first

{ "sortOrder": "status" }

hiddenAt (default: "bottom")

When tasks exceed maxVisible, controls where hidden tasks collapse:

• "bottom" — hides from the end of the list (existing behaviour)
• "top" — hides from the start (useful with "status" sort to collapse completed tasks while keeping active work visible)

{ "sortOrder": "status", "hiddenAt": "top", "maxVisible": 10 }

Combined example

Show up to 15 tasks, sorted by status, with completed tasks collapsing at the top:

{
  "sortOrder": "status",
  "hiddenAt": "top",
  "maxVisible": 15
}

Details

• Sort logic lives in TaskStore.list(sortOrder) with extracted comparator functions, keeping the widget thin
• All settings are persisted in .pi/tasks-config.json alongside existing settings
• Config is injected into the widget via constructor (mutable reference, no setter needed)
• All defaults preserve existing behaviour — no breaking changes
• All checks pass locally (lint, typecheck, 159 tests)

[tintinweb]

thx 🙏