feat: Claude.md file detection for projects and adds a comprehensive icon guide to improve user experience and onboarding

[lvalics]

1. Claude.md Detection (server/projects.js)

• Added automatic detection of CLAUDE.md files in project directories
• Projects now include a hasClaudeFile property to indicate presence/absence
• Applies to both session-based and manually added projects

2. Icon Guide UI (src/components/MainContent.jsx)

• Added a visual icon guide section below the welcome message
• Explains the purpose of each icon in the interface:
  • Folder+: Create a new project
  • Refresh: Reload projects and sessions
  • Star: Mark project as favorite
  • Edit: Rename project
  • Info: Indicates project missing CLAUDE.md file (suggests running /init)

3. Sidebar Enhancement (src/components/Sidebar.jsx)

• Integrated Claude.md detection to display info icon for projects without the file
• Improved visual feedback for better project management

Benefits

• Better Onboarding: New users immediately understand what each icon does
• Claude.md Awareness: Users can quickly identify which projects need initialization
• Improved UX: Clear visual indicators help users navigate the interface more efficiently

[viper151]

@lvalics I can see the icon but hovering does not show anything..

[lvalics]

I will check...

[viper151]

@lvalics did you check this one by any chance?

[lvalics]

No, sorry, not yet. Vacation :-)