REF-44: Refactor component structure to domain-based organization

[devin-ai-integration]

Refactor component structure to domain-based organization

Changes

• Moved components to domain-based folders (chat, ui, settings)
• Created reusable sidebar wrapper component
• Refactored tool-result layout into reusable collapsible card component
• Implemented component-per-folder approach
• Updated imports throughout the codebase

Ticket

REF-44

Link to Devin run

https://app.devin.ai/sessions/3ee2fdfefdf54d4bbbb0c6e636d5af10

Requested by

dev@refact.co

[devin-ai-integration]

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