fix: pass transcription language setting to live Whisper workers

Agent-Logs-Url: https://github.com/aker-dev/Sidekick2000/sessions/7e607c79-7e0c-488c-a861-f8187d955864

Co-authored-by: davidonet <582253+davidonet@users.noreply.github.com>

Author: Copilot

src-tauri/Cargo.lock

@@ -79,6 +79,7 @@ async fn start_recording(
     state: tauri::State<'_, Mutex<AppState>>,
     local_device: Option<String>,
     remote_device: Option<String>,
+    language: Option<String>,
     app: tauri::AppHandle,
 ) -> Result<(), String> {
     let s = settings::load();
@@ -118,11 +119,16 @@ async fn start_recording(
                 model_path.display()
             );
         } else {
-            let language = if s.default_language.is_empty() {
-                None
-            } else {
-                Some(s.default_language.clone())
-            };
+            // Prefer the language passed from the UI; fall back to saved settings.
+            let language = language
+                .filter(|l| !l.is_empty())
+                .or_else(|| {
+                    if s.default_language.is_empty() {
+                        None
+                    } else {
+                        Some(s.default_language.clone())
+                    }
+                });
 
             match live_transcribe::LiveDualState::start(
                 &state.local_recorder,

src-tauri/src/lib.rs

@@ -241,6 +241,7 @@
         await startRecording(
           appState.selectedDevice || undefined,
           appState.remoteDevice || undefined,
+          appState.language || undefined,
         );
         appState.phase = "recording";
         appState.elapsedSecs = 0;

src/components/RecordSection.svelte

@@ -17,10 +17,11 @@ export async function stopMonitoring(): Promise<void> {
   await invoke("stop_monitoring");
 }
 
-export async function startRecording(localDevice?: string, remoteDevice?: string): Promise<void> {
+export async function startRecording(localDevice?: string, remoteDevice?: string, language?: string): Promise<void> {
   await invoke("start_recording", {
     localDevice: localDevice ?? null,
     remoteDevice: remoteDevice ?? null,
+    language: language ?? null,
   });
 }