Replace README with cleaner, human-written version

[actuallypav]

I noticed the note that the original README was generated with AI. I put together a more concise, human-style README as a starting point that keeps the core information while using a simpler tone and structure.

I haven't seen any updates in a while, but this looks like a great project, and it would be awesome to see it continue. Although I bet you would've written your own README, I think some external interest in the project might be just what gets you back to working on it. Happy to adjust anything if you'd prefer a different direction.

Summary of changes:

• Removed heavy emoji usage and marketing-style language - provided by AI
• Simplified intro and project description
• Consolidated and clarified feature lists
• Removed verbose usage guide in favour of a leaner structure
• Standardised headings and formatting
• Cleaned up wording, spelling, and consistency
• Kept all existing technical information and build instructions