chore: MVC faucet first blood

[LesnyRumcajs]

Summary of changes

Changes introduced in this pull request:

• added some docs on the local environment + required bypass with rate limiter,
• separated the faucet into a rough Model-View-Controller - more work is needed, but my holidays are calling me 🎅
• there were no changes in the faucet logic itself

Reference issue to close (if applicable)

Closes

Other information and links

Change checklist

• I have performed a self-review of my own code,
• I have made corresponding changes to the documentation. All new code
  adheres to the team's
  documentation standards,
• I have added tests that prove my fix is effective or that my feature works
  (if possible),