i18n: Complete translation of documentation to English

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Description

Complete the translation of all German documentation and code comments to English.

Progress

Tracking in: .translation-status.md

✅ Completed

• Main README.md
• CONTRIBUTING.md
• CHANGELOG.md
• GitHub templates (PR, Issues, Code of Conduct)

🔄 Remaining

Priority 1:

• firmware/README.md
• software/driver/README.md
• docs/usb_protocol.md
• docs/rgb_control.md

Priority 2:

• hardware/README.md
• hardware/pinout.md
• hardware/schematic_suggestions.md
• hardware/BLOCK_DIAGRAM.md

Priority 3:

• hardware/kicad/README.md
• hardware/kicad/QUICK_START.md
• .github/workflows/README.md

Code Comments:

• firmware/src/*.c files
• firmware/include/*.h files
• software/driver/pico_fan_hub/*.py files

Guidelines

See .translation-status.md for translation guidelines and common terms.

How to Contribute

Pick a file from the list above and create a PR with the translation.

Priority

Medium - Enables international collaboration