VesiScan BASIC origin: Piezo + IMU firmware initial code

- nRF52840 + SoftDevice S140 BLE firmware
- Piezo ultrasound TX driver (2MHz, 8ch MUX)
- ICM42670P IMU 6-axis driver
- Echo AFE chain (ADA2200 + ADC121S051)
- BLE NUS command parser (mpa/mpc/mdc/mec/maa/msp)
- FDS flash config storage
- pc_firm parser and ADC driver included

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

project/ble_peripheral/ble_app_bladder_patch/cmd/parser.h

@@ -0,0 +1,24 @@
+/* parser.h */
+#ifndef PARSER_H
+#define PARSER_H
+
+#include <stdint.h>
+#include <stdbool.h>
+
+/* Platform-dependent function pointer set */
+typedef struct {
+    void (*log)(const char *fmt, ...);
+    void (*tx_bin)(const uint8_t *buf, uint16_t len);
+    bool crc_check;  
+} dr_platform_if_t;
+
+
+/* Global interface & log flag */
+extern dr_platform_if_t g_plat;
+extern bool g_log_enable;
+
+/* Main parser entry point */
+int dr_cmd_parser(const uint8_t *buf, uint8_t len);
+
+#endif /* PARSER_H */
+