Adjust timeouts and constants for improved moisture sensor and backup management accuracy

- Increased CAN measurement timeout to 5000ms for reliability.
- Updated `SAVEGAME_SLOT_SIZE` usage in backup handling for consistency.
- Refined moisture sensor frequency thresholds for better sensor calibration (400Hz-70kHz).

Software/MainBoard/rust/src/hal/v4_hal.rs

@@ -391,7 +391,7 @@ impl<'a> BoardInteraction<'a> for V4<'a> {
 
             let mut moistures = Moistures::default();
             let _ = wait_for_can_measurements(&mut twai, &mut moistures)
-                .with_timeout(Duration::from_millis(1000))
+                .with_timeout(Duration::from_millis(5000))
                 .await;
             Ok(moistures)
         })

Software/MainBoard/rust/src/mcutie_3_0_0/lib.rs

@@ -220,7 +220,7 @@ impl<'t, T: Deref<Target = str> + 't, L: Publishable + 't, const S: usize>
                 username: self.username,
                 password: self.password,
                 subscriptions: self.subscriptions,
-                keep_alive
+                keep_alive,
             },
         )
     }

Software/MainBoard/rust/src/plant_state.rs

@@ -4,8 +4,8 @@ use chrono::{DateTime, TimeDelta, Utc};
 use chrono_tz::Tz;
 use serde::{Deserialize, Serialize};
 
-const MOIST_SENSOR_MAX_FREQUENCY: f32 = 7500.; // 60kHz (500Hz margin)
-const MOIST_SENSOR_MIN_FREQUENCY: f32 = 150.; // this is really, really dry, think like cactus levels
+const MOIST_SENSOR_MAX_FREQUENCY: f32 = 70000.; // 70kHz
+const MOIST_SENSOR_MIN_FREQUENCY: f32 = 400.; // this is really, really dry, think like cactus levels
 
 #[derive(Debug, PartialEq, Serialize)]
 pub enum MoistureSensorError {
@@ -312,7 +312,7 @@ impl PlantState {
             },
             sensor_a_firmware_build_minutes: self.sensor_a_firmware_build_minutes,
             sensor_b_firmware_build_minutes: self.sensor_b_firmware_build_minutes,
-            last_fertilizer_time: self.last_fertilizer_time
+            last_fertilizer_time: self.last_fertilizer_time,
         }
     }
 }

Software/MainBoard/rust/src/webserver/backup_manager.rs

@@ -1,4 +1,5 @@
 use crate::fat_error::{FatError, FatResult};
+use crate::hal::savegame_manager::SAVEGAME_SLOT_SIZE;
 use crate::webserver::read_up_to_bytes_from_request;
 use crate::BOARD_ACCESS;
 use alloc::borrow::ToOwned;
@@ -46,7 +47,7 @@ pub(crate) async fn backup_config<T, const N: usize>(
 where
     T: Read + Write,
 {
-    let input = read_up_to_bytes_from_request(conn, Some(4096)).await?;
+    let input = read_up_to_bytes_from_request(conn, Some(SAVEGAME_SLOT_SIZE)).await?;
     info!("Read input with length {}", input.len());
     let mut board = BOARD_ACCESS.get().await.lock().await;
     let config_to_backup = serde_json::from_slice(&input)?;