feat(cli): add /checkpoint enable and disable subcommand

[marius-kilocode]

Summary

Adds /checkpoint enable and /checkpoint disable subcommands to the CLI to allow users to toggle checkpoint creation and save disk space.

Changes

• Added handleEnable() and handleDisable() functions that send updateSettings messages to the extension
• Updated subcommand provider to include enable and disable options in autocomplete
• Updated command metadata (usage, examples, help text)
• Added comprehensive tests for the new functionality

Usage

# Disable checkpoint creation to save disk space
/checkpoint disable

# Re-enable checkpoint creation
/checkpoint enable

When disabling checkpoints, users are informed that existing checkpoints at ~/.kilocode/cli/global/tasks/*/checkpoints/ can be manually deleted to free disk space.

Closes #4696

[changeset-bot]

🦋 Changeset detected

Latest commit: efcab4c

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@kilocode/cli	Patch

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[kiloconnect]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

This PR adds /checkpoint enable and /checkpoint disable subcommands to the CLI, allowing users to toggle checkpoint creation and save disk space. The implementation is clean and well-tested.

Highlights

• Clean implementation of handleEnable() and handleDisable() functions
• Proper error handling with try/catch blocks
• Platform-aware path display for Windows vs Unix
• Comprehensive test coverage for all new functionality
• Consistent with existing command patterns

Files Reviewed (3 files)

• .changeset/checkpoint-enable-disable.md - Changeset for the patch
• cli/src/commands/checkpoint.ts - Implementation of enable/disable subcommands
• cli/src/commands/__tests__/checkpoint.test.ts - Test coverage for new functionality

[hellosfs-bot]

well done！