feat(ui): restore AstroTinyML design matching larun.space

[Paddy1981]

• Dark space theme (#0a0a0a background)
• Purple/blue accent colors (#6366f1, #3b82f6)
• Gold highlights for key stats (#fbbf24)
• Hero with "No PhD required" tagline
• 4-step How It Works: Chat → Fetch → Detect → Report
• 6 Features: TinyML, NASA data, BLS, Reports, Habitable Zone, AI Chat
• Target audience tags
• Pricing with "MOST POPULAR" badge
• Glassmorphism header with backdrop blur
• Card hover animations

https://claude.ai/code/session_011NWj4qHMpnJqseDYB5et8R

Summary

Type of Change

• Bug fix (non-breaking change fixing an issue)
• New feature (non-breaking change adding functionality)
• Breaking change (fix or feature causing existing functionality to change)
• Documentation update
• Refactoring (no functional changes)
• CI/CD changes

Related Issues

Changes Made

Testing

• Unit tests added/updated
• Manual testing performed
• All existing tests pass

Skill Updates (if applicable)

• ANAL-xxx:
• STAR-xxx:
• MISSION-xxx:
• DISC-xxx:
• RES-xxx:

Multi-IDE Coordination

• Updated .coordination/TASK_LOG.md
• Checked .coordination/FILE_LOCKS.md for conflicts
• Updated .coordination/HANDOFF_NOTES.md if needed

Checklist

• Code follows project style guidelines
• Self-review completed
• Comments added for complex logic
• Documentation updated (if needed)
• No new warnings introduced