"Enable Workspaces" option never appears in Desktop app (Linux/X11)

Description

The "Enable Workspaces" option does not appear anywhere in OpenCode Desktop, on any project — not via right-click on a project in the sidebar, not via the command palette (Ctrl+K), and not by typing /ws in the prompt input.

This happens on every project I've tried, including a brand-new, minimal test repo (empty folder, git init, one commit), which rules out project-specific corruption.

Troubleshooting already done, none of which changed the behavior:

• Disabled all configured plugins (emptied the plugin array in opencode.jsonc) — no change.
• Confirmed git is at a standard system path (/usr/bin/git), reachable from both my interactive shell (fish) and bash — so it's not a PATH issue.
• Checked logs (~/.local/share/opencode/log/opencode.log) — the app's internal CLI sidecar auto-upgraded from 1.18.7 to 1.18.9 during this troubleshooting session. The issue was present both before and after that upgrade.
• Changed my system login shell from fish to bash (chsh -s /usr/bin/bash) and restarted — no change. (Desktop Settings > Shell shows "fish" listed under "terminal only" before this change.)
• Cleared no cache/config beyond the above; happy to try further steps if requested.

No errors appear in the logs around project load or workspace initialization — the feature just silently doesn't show up.

Note: there's a version discrepancy that may be relevant — my globally installed opencode CLI (in PATH) reports version 1.18.7, while the Desktop app itself (and its internally-managed sidecar, per the logs) is on 1.18.9. Not sure if the Desktop app is meant to use the global CLI install or its own bundled one, but flagging in case this mismatch is related.

Plugins

superpowers@git+https://github.com/obra/superpowers.git (Also tested with this plugin fully disabled)

OpenCode version

1.18.9

Steps to reproduce

1. Open OpenCode Desktop on Linux (X11, KDE/Konsole).
2. Open any project that is a valid git repository (tested with an existing large project and a brand-new minimal test repo).
3. Right-click the project in the left sidebar — no "Enable Workspaces" option appears.
4. Open the command palette (Ctrl+K) and search "workspace" — no matching command appears.
5. Type /ws in the prompt input — no related command triggers.

Expected: "Enable Workspaces" option available via right-click and/or command palette, per the documented workflow.
Actual: option is absent everywhere, on every project, with no error shown.

Screenshot and/or share link

No response

Operating System

Kubuntu 24.04

Terminal

Konsole