feat: add terminalAutoShow setting for auto-showing terminal on command execution

[roomote-v0]

Related GitHub Issue

Closes: #12277

Description

This PR attempts to address Issue #12277 by adding a new opt-in terminalAutoShow setting. Feedback and guidance are welcome.

Implementation (options a + c as approved by the reporter):

• VS Code terminal mode (shell integration enabled): When terminalAutoShow is on, terminal.show(true) is called to reveal the terminal panel (preserving editor focus). When off, the terminal panel is no longer auto-shown.
• Inline Terminal / execa mode: When terminalAutoShow is on, the command output in the chat is auto-expanded so users can always see command progress. This complements the existing behavior where execa output is already expanded by default.

Changes across the stack:

1. packages/types/src/global-settings.ts -- Added terminalAutoShow to the zod schema with default false
2. packages/types/src/vscode-extension-host.ts -- Added to ExtensionState pick type
3. src/core/webview/ClineProvider.ts -- Thread setting through state retrieval
4. src/core/tools/ExecuteCommandTool.ts -- Conditionally call terminal.show(true) only when enabled
5. webview-ui/src/context/ExtensionStateContext.tsx -- Added state + setter
6. webview-ui/src/components/settings/TerminalSettings.tsx -- Added checkbox in Basic settings
7. webview-ui/src/components/settings/SettingsView.tsx -- Pass prop through
8. webview-ui/src/components/chat/CommandExecution.tsx -- Auto-expand output when enabled
9. webview-ui/src/i18n/locales/en/settings.json -- English i18n strings

Test Procedure

• All existing tests pass (executeCommand, executeCommandTool, CommandExecution, SettingsView)
• Manual testing: enable the setting in Terminal settings tab, run a command, and verify the terminal panel auto-shows (shell integration) or output auto-expands (inline terminal)

Pre-Submission Checklist

• Issue Linked: This PR is linked to an approved GitHub Issue
• Scope: Changes are focused on the linked issue
• Self-Review: Performed self-review
• Testing: Existing tests continue to pass; new setting follows existing patterns
• Documentation Impact: Setting is self-documenting via the UI description
• Contribution Guidelines: Read and agree

Documentation Updates

No external documentation changes needed -- the setting is described in the UI itself.

Interactively review PR in Roo Code Cloud

[YousefBZo]

I've reviewed all the changes in the PR, and I must say the implementation is perfect! You've addressed everything from the auto-focus in the VS Code terminal to the auto-expansion in the chat UI. The settings UI also looks very clean and the descriptions are clear. Thank you for making this happen—it's going to be a great addition to Roo Code!