fix(core): use standalone root for integration detection

[webfansplz]

Context

Standalone DevTools accepts a target project directory through cwd, but optional integrations were detected relative to process.cwd().

When the CLI was launched from another directory, such as with --root, it could load integrations from the wrong project or show install launchers for integrations that were already installed. Relative --root values also need to be normalized before package resolution.

Changes

• Allow DevTools() to use a configured directory for integration detection.
• Normalize the directory to an absolute path before resolving packages.
• Pass the standalone project directory to DevTools().

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commit: e01e80c

[Copilot]

Pull request overview

Fixes standalone-mode optional integration detection so it respects the configured project root (instead of process.cwd()), preventing false “install launcher” states or loading integrations from the wrong project when --root/cwd is used.

Changes:

• Pass the standalone target directory (cwd) into DevTools() when launching standalone DevTools.
• Add DevToolsOptions.cwd and normalize it to an absolute path for package existence checks.
• Add a unit test asserting integrations are detected relative to the configured directory.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
packages/core/src/node/standalone.ts	Passes the standalone project cwd into DevTools() so integration detection is aligned with the standalone root.
packages/core/src/node/plugins/index.ts	Introduces DevToolsOptions.cwd and resolves it to an absolute path before isPackageExists checks.
packages/core/src/node/plugins/tests/index.test.ts	Adds coverage to ensure optional integrations are checked from the configured project directory.

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