[BUG] Sessions created in standalone mode don't appear when using opencode attach #10922

Description

Steps to reproduce:

1. Run opencode in /path/to/project and create sessions
2. Exit and run opencode serve
3. Run opencode attach http://127.0.0.1:4096 in the same directory
4. Sessions from step 1 don't appear in session list

Expected: All sessions for a folder should be visible regardless of connection mode

Actual: Standalone sessions are hidden when using attach mode

Related issues: #3026, #7186, #10904

Plugins

No response

OpenCode version

1.1.36

Steps to reproduce

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Screenshot and/or share link

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Operating System

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Terminal

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