refactor: simplify battery monitoring logic, remove unused fields, and replace BQ34Z100G1 integration with WCH I2C implementation

Software/MainBoard/rust/src/fat_error.rs

@@ -2,6 +2,7 @@ use alloc::format;
 use alloc::string::{String, ToString};
 use core::convert::Infallible;
 use core::fmt;
+use core::fmt::Debug;
 use core::str::Utf8Error;
 use embassy_embedded_hal::shared_bus::I2cDeviceError;
 use embassy_executor::SpawnError;
@@ -12,6 +13,7 @@ use esp_hal::pcnt::unit::{InvalidHighLimit, InvalidLowLimit};
 use esp_hal::twai::EspTwaiError;
 use esp_radio::wifi::WifiError;
 use ina219::errors::{BusVoltageReadError, ShuntVoltageReadError};
+use lib_bms_protocol::BmsProtocolError;
 use littlefs2_core::PathError;
 use onewire::Error;
 use pca9535::ExpanderError;
@@ -19,6 +21,9 @@ use pca9535::ExpanderError;
 //All error superconstruct
 #[derive(Debug)]
 pub enum FatError {
+    BMSError {
+        error: String,
+    },
     OneWireError {
         error: Error<Infallible>,
     },
@@ -100,6 +105,7 @@ impl fmt::Display for FatError {
                 write!(f, "CanBusError {error:?}")
             }
             FatError::SNTPError { error } => write!(f, "SNTPError {error:?}"),
+            FatError::BMSError { error } => write!(f, "BMSError, {error}"),
         }
     }
 }
@@ -316,3 +322,14 @@ impl From<sntpc::Error> for FatError {
         FatError::SNTPError { error: value }
     }
 }
+
+
+impl From<BmsProtocolError> for FatError{
+    fn from(value: BmsProtocolError) -> Self {
+        match value {
+            BmsProtocolError::I2cCommunicationError => {
+                FatError::String{error: "I2C communication error".to_string()}
+            }
+        }
+    }
+}