Initial commit: project docs and wiring diagram

Smart bench press trainer with electric motor (M365 Pro).
CAN Bus architecture: ESP32-S3 (master) + Flipsky 75100 (VESC) + STM32 Blue Pill (carriage).

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

.gitignore

@@ -0,0 +1,24 @@
+# Build artifacts
+build/
+*.o
+*.elf
+*.bin
+*.hex
+*.map
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# OS
+.DS_Store
+Thumbs.db
+
+# PlatformIO
+.pio/
+
+# Archives
+*.zip