Initial commit: MT firmware project

- BLE peripheral applications
- dr_piezo and bladder_patch projects

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,37 @@
+# Compiled binaries
+*.o
+*.hex
+*.bin
+*.elf
+*.map
+*.lst
+
+# Build directories
+_build/
+build/
+output/
+
+# IDE/Editor
+.vscode/
+*.swp
+*.swo
+*~
+
+# Segger/J-Link
+*.jlink
+
+# nRF specific
+*.zip
+sdk_config.h.bak
+
+# Windows
+Thumbs.db
+desktop.ini
+
+# Temporary files
+*.tmp
+*.bak
+
+# SDK (external dependencies)
+# components/
+# external/