vosk model selection in GUI

crates/jarvis-gui/src/tauri_commands/db.rs

@@ -10,6 +10,7 @@ pub fn db_read(state: tauri::State<'_, AppState>, key: &str) -> String {
         "assistant_voice" => settings.voice.clone(),
         "selected_wake_word_engine" => format!("{:?}", settings.wake_word_engine),
         "selected_intent_recognition_engine" => format!("{:?}", settings.intent_recognition_engine),
+        "selected_vosk_model" => settings.vosk_model.clone(),
         "speech_to_text_engine" => format!("{:?}", settings.speech_to_text_engine),
         "api_key__picovoice" => settings.api_keys.picovoice.clone(),
         "api_key__openai" => settings.api_keys.openai.clone(),
@@ -49,6 +50,9 @@ pub fn db_write(state: tauri::State<'_, AppState>, key: &str, val: &str) -> bool
                     _ => return false,
                 }
             }
+            "selected_vosk_model" => {
+                settings.vosk_model = val.to_string();
+            }
             "api_key__picovoice" => {
                 settings.api_keys.picovoice = val.to_string();
             }

crates/jarvis-gui/src/tauri_commands/stt.rs

@@ -0,0 +1,21 @@
+use jarvis_core::{vosk_models, DB};
+use serde::Serialize;
+
+#[derive(Serialize)]
+pub struct VoskModel {
+    pub name: String,
+    pub language: String,
+    pub size: String,
+}
+
+#[tauri::command]
+pub fn list_vosk_models() -> Vec<VoskModel> {
+    vosk_models::scan_vosk_models()
+        .into_iter()
+        .map(|m| VoskModel {
+            name: m.name,
+            language: m.language,
+            size: m.size,
+        })
+        .collect()
+}