Plugins cause repeated dependency installation on startup when package-lock=false

Description

When ~/.npmrc contains package-lock=false, enabling any external plugin causes OpenCode to repeatedly install dependencies on startup. This can noticeably delay startup on slow npm registry connections.

OpenCode installs @opencode-ai/plugin in its config directory and checks package-lock.json to decide whether installation is needed. If no lockfile exists, the check fails on every startup and triggers arborist.reify() again, even when dependencies are already installed.

Plugins

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OpenCode version

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Steps to reproduce

1. Set package-lock=false in ~/.npmrc, with no project-level override.
2. Enable a plugin in OpenCode.
3. Ensure ~/.config/opencode/package-lock.json does not exist.
4. Start OpenCode multiple times.

Expected behavior

Unchanged, already-installed dependencies should not trigger installation on every startup.

Actual behavior

arborist.reify() runs on every startup, and plugin loading waits for it to finish.

Environment

• OpenCode 1.18.30
• macOS ARM64
• npm registry: https://registry.npmjs.org

Screenshot and/or share link

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Operating System

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Terminal

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