feat: Add platform-specific terminal context (#5659)

[roomote-bot]

Fixes #5659

This PR enhances Roo's terminal command generation by adding platform-specific context to the system prompt.

Changes Made

• Added platform-specific terminal guidance in system-info.ts
• Enhanced execute_command tool with platform-appropriate examples
• Supports Windows (PowerShell/CMD), macOS (Zsh/Bash), and Linux (Zsh/Bash)
• Provides command syntax, operators, path separators, and tool recommendations

Testing

• All existing tests pass with updated snapshots
• Verified platform detection works correctly
• Confirmed backward compatibility

This resolves the issue where Roo would use inappropriate terminal commands for the user's platform.

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Important

Adds platform-specific terminal context and examples to improve command generation for different operating systems and shells.

• Behavior:
  • Adds platform-specific terminal context in system-info.ts for Windows, macOS, and Linux.
  • Enhances execute_command tool in execute-command.ts with platform-appropriate examples.
  • Supports Windows (PowerShell/CMD), macOS (Zsh/Bash), and Linux (Zsh/Bash).
  • Provides command syntax, operators, path separators, and tool recommendations.
• Testing:
  • All existing tests pass with updated snapshots.
  • Verified platform detection works correctly.
  • Confirmed backward compatibility.

^{This description was created by for d791a53. You can customize this summary. It will automatically update as commits are pushed.}

[delve-auditor]

✅ No security or compliance issues detected. Reviewed everything up to d791a53.

Security Overview

• 🔎 Scanned files: 15 changed file(s)

Detected Code Changes

Change Type	Relevant files
Enhancement	► system-info.ts     Add platform-specific terminal context for different OS and shells ► execute-command.ts     Add platform-specific command examples

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