[v2] tui: skills completely missing #43652

Description

Summary

The command palette does not show a "skills" option/entry for viewing installed skills. Typing "skills" in the palette returns nothing, so there is no way to list or inspect installed skills from the TUI.

Environment

• opencode version: 0.0.0-beta-17728 (via opencode2 --version)
• OS: Darwin 25.5.0 (darwin arm64) — macOS
• Terminal: TERM_PROGRAM=ghostty, TERM=xterm-256color, COLORTERM=truecolor
• Shell: /bin/zsh
• Install/channel: beta
• Active plugins: superpowers@git+https://github.com/obra/superpowers.git

Note: opencode --version fails with a postinstall error ("opencode-ai's postinstall script was not run"), but opencode2 --version works and reports the version above.

Reproduction

1. Launch opencode TUI.
2. Open the command palette.
3. Type "skills".

Expected Behavior

The palette should show a "Skills" entry (or similar) that lists/opens installed skills, including the active superpowers plugin skills.

Actual Behavior

No skills-related entry appears in the palette when searching for "skills". There is no visible way to view installed skills from the TUI.

Additional Context

• Reproduces consistently, every time the palette is opened.
• Config (~/.config/opencode/opencode.json) has one plugin configured: superpowers@git+https://github.com/obra/superpowers.git. UPD: Tried without the plugin - the issue still there. However it used to work with the plugin just yesterday
• MCP servers in config (chrome-devtools, atlassian, gitlab) are all set to enabled: false — unlikely to be related.
• No opencode.json/opencode.jsonc found in the workspace; only the global config exists.

Plugins

No response

OpenCode version

No response

Steps to reproduce

No response

Screenshot and/or share link

Operating System

No response

Terminal

No response