fix(cli): discover project skills in worktree sessions

[marius-kilocode]

Agent Manager worktree sessions use the linked worktree checkout as their backend request directory. Project configuration discovery also used that checkout as its upward traversal boundary, so it stopped before reaching the main repository's .kilo directory. As a result, worktree sessions could see global skills but not project-installed skills available in normal sidebar chat.

Use the Git project's shared repository root as the discovery boundary for project config directories and skills, while keeping the linked checkout as the active session and Git-operation directory. This restores project skill discovery without allowing worktree sessions to edit or execute against the main checkout.

This addresses the Discord report. It is separate from #10806, which hardened concurrent Marketplace installation and missing workspace handling but did not change backend discovery from linked worktree directories. No matching GitHub issue was found.

[kilo-code-bot]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

Files Reviewed (4 files)

• .changeset/fix-worktree-project-skills.md
• packages/opencode/src/config/config.ts
• packages/opencode/src/skill/index.ts
• packages/opencode/test/kilocode/worktree-project-skills.test.ts

Fix these issues in Kilo Cloud

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_{Review guidance: REVIEW.md from base branch main}