Implement pump flow monitoring and UI normalization enhancements

- Rust: Add `MIN_PUMP_FLOW_ML` constant and logging for insufficient pump flow with fault handling.
- UI: Normalize config fields to maintain consistency and prevent false dirty flags after round-trips.
- KiCad: Update board zone settings for `PlantCtrlESP32` and `MPPT`.
- IntelliJ: Add `.idea` configurations for project setup and inspections.

Software/MainBoard/rust/src/log/mod.rs

@@ -321,6 +321,10 @@ pub enum LogMessage {
         serialize = "Trace: a: ${number_a} b: ${number_b} txt_s ${txt_short} long ${txt_long}"
     )]
     Trace,
+    #[strum(
+        serialize = "Pump insufficient flow, pump: ${number_a} measured ${number_b} ml, minimum is ${txt_short} ml"
+    )]
+    PumpInsufficientFlow,
     #[strum(serialize = "Parsing error reading message")]
     UnknownMessage,
     #[strum(serialize = "Going to deep sleep for ${number_a} minutes")]

Software/MainBoard/rust/src/main.rs

@@ -478,6 +478,17 @@ async fn safe_main(spawner: Spawner) -> FatResult<()> {
                             state.flow_value_ml,
                         )
                         .await;
+                        if !dry_run && state.flow_value_ml < MIN_PUMP_FLOW_ML {
+                            log(
+                                LogMessage::PumpInsufficientFlow,
+                                (plant_id + 1) as u32,
+                                state.flow_value_ml as u32,
+                                &(MIN_PUMP_FLOW_ML as u32).to_string(),
+                                "",
+                            );
+                            board.board_hal.general_fault(true).await;
+                            board.board_hal.fault(plant_id, true).await?;
+                        }
                     }
                     Err(err) => {
                         mqtt::pump_info(
@@ -700,6 +711,8 @@ async fn safe_main(spawner: Spawner) -> FatResult<()> {
     }
 }
 
+const MIN_PUMP_FLOW_ML: f32 = 200.0;
+
 pub async fn do_secure_pump(
     board: &mut MutexGuard<'_, CriticalSectionRawMutex, HAL<'_>>,
     plant_id: usize,

Software/MainBoard/rust/src_webpack/src/api.ts

@@ -36,10 +36,10 @@ export interface BackupHeader {
 
 export interface NetworkConfig {
     ap_ssid: string,
-    ssid: string,
-    password: string,
-    mqtt_url: string,
-    base_topic: string,
+    ssid: string | null,
+    password: string | null,
+    mqtt_url: string | null,
+    base_topic: string | null,
     mqtt_user: string | null,
     mqtt_password: string | null,
     max_wait: number

Software/MainBoard/rust/src_webpack/src/main.ts

@@ -246,8 +246,11 @@ export class Controller {
         const response = await fetch(PUBLIC_URL + "/get_config");
         const loaded = await response.json();
         const currentConfig = loaded as PlantControllerConfig;
-        controller.setInitialConfig(currentConfig);
         controller.setConfig(currentConfig);
+        // Store the config after the UI round-trip so null fields that the UI
+        // normalises (e.g. null → "" → null, null timezone → "UTC") are
+        // represented consistently and don't trigger a false dirty flag.
+        controller.setInitialConfig(controller.getConfig());
         //sync json view initially
         controller.configChanged();
         controller.progressview.removeProgress("get_config");

Software/MainBoard/rust/src_webpack/src/network.ts

@@ -102,25 +102,25 @@ export class NetworkConfigView {
 
     setConfig(network: NetworkConfig) {
       this.ap_ssid.value = network.ap_ssid;
-      this.ssid.value = network.ssid;
-      this.password.value = network.password;
-      this.mqtt_url.value = network.mqtt_url;
-      this.base_topic.value = network.base_topic;
+      this.ssid.value = network.ssid ?? "";
+      this.password.value = network.password ?? "";
+      this.mqtt_url.value = network.mqtt_url ?? "";
+      this.base_topic.value = network.base_topic ?? "";
       this.mqtt_user.value = network.mqtt_user ?? "";
       this.mqtt_password.value = network.mqtt_password ?? "";
       this.max_wait.value = network.max_wait.toString();
     }
-    
+
     getConfig(): NetworkConfig {
       return {
         max_wait: +this.max_wait.value,
         ap_ssid: this.ap_ssid.value,
-        ssid: this.ssid.value ?? null,
-        password: this.password.value ?? null,
-        mqtt_url: this.mqtt_url.value ?? null,
-        mqtt_user: this.mqtt_user.value ? this.mqtt_user.value : null,
-        mqtt_password: this.mqtt_password.value ? this.mqtt_password.value : null,
-        base_topic: this.base_topic.value ?? null
+        ssid: this.ssid.value || null,
+        password: this.password.value || null,
+        mqtt_url: this.mqtt_url.value || null,
+        mqtt_user: this.mqtt_user.value || null,
+        mqtt_password: this.mqtt_password.value || null,
+        base_topic: this.base_topic.value || null
       }
     }
   }