Initial implementation of HeisserDraht buzz wire game

ESP32-C3 based hot wire game with WS2812B LED effects,
SSD1306 OLED display, debounced touch detection, and
full game state machine (IDLE → COUNTDOWN → PLAYING → GAME_OVER).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,20 @@
+# Arduino build artifacts
+build/
+*.elf
+*.bin
+*.hex
+*.map
+
+# IDE files
+.vscode/
+*.code-workspace
+.idea/
+
+# OS files
+.DS_Store
+Thumbs.db
+
+# Backup files
+*~
+*.bak
+*.swp