feat: opencode release v1.18.2

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What's Changed

Core

Bugfixes

• Stopped subagents from launching nested subagents by default, with a configurable subagent_depth limit when needed.
• Improved default reasoning depth for Meta models.

Desktop

Improvements

• Added Mod+N as another shortcut for opening a new tab.

Bugfixes

• Restored the Help button in release builds.
• Kept sessions with null archive times visible instead of dropping them from the home list.
• Hid the drawer close button on Windows where it conflicts with the window chrome.

Thank you to 1 community contributor:

• @BB-84C:
  • fix(core): tolerate AlreadyExists in FSUtil.ensureDir (#36542)

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Full Changelog: https://github.com/anomalyco/opencode/releases/tag/v1.18.2

This PR was created automatically by a scheduled workflow.

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Docker image size comparison

Image	Size
Baseline (main)	602MB
This PR	602MB
Difference	0B