Problem

Currently ingvar spark asks for app description DURING package installation, which interrupts the flow and prevents voice-friendly interaction.

Proposed Solution

Phase 1: ingvar init (Enhanced)

• Keep all existing setup (GitHub, npm links, workflows)
• Add design system selection (Ingka Skapa / CWDS)
• Install design system packages
• Complete setup before any code generation

Phase 2: ingvar spark (Refactored)

• Run AFTER ingvar init is complete
• Ask for app description (voice-friendly, no interruptions)
• Generate code using already-installed design system
• No package installation, just code generation

Acceptance Criteria

• ingvar init includes design system selection
• ingvar init installs design system packages
• ingvar spark asks for description AFTER setup
• ingvar spark generates code without installing packages
• Voice commands work smoothly (no typing during installation)
• Backward compatibility: ingvar spark can still work standalone if design system already configured

Implementation Notes

• Move design system selection from spark.js → init.js
• Update spark.js to detect existing design system config
• If no design system configured, prompt user to run ingvar init first
• Store design system choice in .ingvarrc.json config