[SSR Agent] Issue Fix (330): Enable pre-installed companion extension upon prompt acceptance

[joneba-google]

fixes #330
#330

Context & Problem

When accepting the prompt to connect VS Code/IDE to Gemini CLI while the companion extension is already pre-installed, Gemini CLI unconditionally ran /ide install instead of /ide enable. This led to extension re-installation errors because the pre-installed state was ignored.

Detailed Changes

• packages/cli/src/ui/AppContainer.tsx: Updated handleIdePromptComplete to inspect result.isExtensionPreInstalled and execute handleSlashCommand('/ide enable') if true, and handleSlashCommand('/ide install') otherwise.
• packages/cli/src/ui/AppContainer.test.tsx: Added two new integration tests to assert that the correct sub-command is executed corresponding to the isExtensionPreInstalled flag value and that user configuration is correctly persisted.

Verification

Verified using the Vitest unit tests added under the IDE Integration Nudge Prompt describe block. Also confirmed that the ESLint check successfully passed with zero errors or warnings as recorded in linter_output.txt.

[github-actions]

📊 PR Size: size/M

• Lines changed: 67
• Additions: +65
• Deletions: -2
• Files changed: 2