Merge pull request #18 from timlinux/feature/logo-and-adsense-env

Add logo and fix AdSense env var support

Merge pull request #17 from timlinux/version-display

Version display

Merge pull request #15 from timlinux/adsense

Updated adsense configs

feat: improve web UI with large font rendering, input capping, and sl…

…ot machine transitions

- Replace Unicode block character rendering with large bold Fira Code font
  for clean, reliable display across all browsers (no CDN dependencies)
- Cap keyboard input at word length so extra keystrokes are ignored,
  allowing single backspace to fix the last character
- Add Ctrl+Backspace support to clear entire word input at once
- Implement slot machine style word reel transition when completing words
- Remove extra character error display below the current word
- Add clearInput API endpoint to frontend API client

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Merge pull request #14 from timlinux/feat/add-adsense-and-analytics

feat: add Google AdSense and Analytics to web pages

Release v1.15.0 - Embedded fonts, no CDN dependencies

Release v1.14.0 - TUI n-gram practice mode support

Release v1.13.0 - Perfect Mode feature

v1.12.0: Version and commit display in footer

v1.11.0: UI improvements - upcoming words, sponsors, button styling