Implement proper interactive confirmation for CLI commands

Background

As identified in PR #110 review, the current implementation for confirmation in CLI commands (e.g., RmCommand) is not interactive. It simply prints a message and exits, forcing the user to re-run the command with --force.

Problem

• Poor user experience requiring command re-execution
• Not truly interactive confirmation
• Inconsistent with typical CLI behavior

Proposed Solution

Use Clikt's built-in confirm() function for interactive prompts. This will:

• Ask the user for confirmation
• Proceed based on their input
• Provide a better user experience

Example Implementation

if (\!force) {
    confirm("Are you sure you want to remove aspect '$key'? This action cannot be undone.", abort = true)
}

Files Affected

• interfaces/cli/src/main/kotlin/io/github/kamiazya/scopes/interfaces/cli/commands/aspect/RmCommand.kt
• Other CLI commands that require confirmation

Priority

Low - This is a UX improvement that doesn't affect functionality