Feature Request: Add support for syncing skills directory

[Irvingouj]

Problem

Currently, opencode-sync only syncs config files (AGENTS.md, opencode.json), state, and model favorites. However, skills directories (e.g., ~/.config/opencode/skills) are not included in the sync options.

Request

Add support for syncing skills directories, either through:

1. A dedicated flag like includeSkills
2. Allowing skills paths via extraConfigPaths

Use Case

Users who manage custom skills across multiple machines would benefit from having skills automatically synced alongside their configuration.

Questions

• Is this something that can be achieved with current extraConfigPaths?
• If not, would you consider adding native support for skills syncing?