feat: responsive pause/stop, non-blocking update with progress bar, delete saved sessions (1.5.0)

- carve: check cancellation inside chunks and per hit; reassembly stage is cancellable
- status exposes `stopping`; UI shows "Pausing…" immediately
- Tauri update commands run off the UI thread; download percentage reported
- delete autosaved sessions manually (one/all) and by retention setting
- chore(release): 1.5.0

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

apps/gui/src-tauri/Cargo.lock

@@ -1342,7 +1342,7 @@ dependencies = [
 
 [[package]]
 name = "guara-core"
-version = "1.4.0"
+version = "1.5.0"
 dependencies = [
  "aes",
  "argon2",
@@ -1373,7 +1373,7 @@ dependencies = [
 
 [[package]]
 name = "guara-gui"
-version = "1.4.0"
+version = "1.5.0"
 dependencies = [
  "guara-core",
  "libc",

apps/gui/src-tauri/Cargo.toml

@@ -3,7 +3,7 @@
 [package]
 name = "guara-gui"
 description = "Guará: graphical file recovery interface"
-version = "1.4.0"
+version = "1.5.0"
 edition = "2021"
 license = "MIT OR Apache-2.0"
 authors = ["Guará contributors"]

apps/gui/src-tauri/src/main.rs

@@ -22,25 +22,41 @@ async fn rpc(
 }
 
 #[tauri::command]
-fn update_check(state: tauri::State<'_, State>) -> Result<serde_json::Value, String> {
-    let status = state.0.update_check().map_err(|e| e.to_string())?;
-    serde_json::to_value(status).map_err(|e| e.to_string())
+async fn update_check(state: tauri::State<'_, State>) -> Result<serde_json::Value, String> {
+    let eng = state.0.clone();
+    tauri::async_runtime::spawn_blocking(move || {
+        let status = eng.update_check().map_err(|e| e.to_string())?;
+        serde_json::to_value(status).map_err(|e| e.to_string())
+    })
+    .await
+    .map_err(|e| e.to_string())?
 }
 
 #[tauri::command]
-fn update_apply(app: tauri::AppHandle, state: tauri::State<'_, State>) -> Result<String, String> {
+async fn update_apply(app: tauri::AppHandle, state: tauri::State<'_, State>) -> Result<String, String> {
     use tauri::Emitter;
     #[cfg(any(target_os = "linux", target_os = "macos"))]
     let exe = elevated_exe().unwrap_or_else(|_| std::env::current_exe().unwrap_or_default());
     #[cfg(not(any(target_os = "linux", target_os = "macos")))]
     let exe = std::env::current_exe().unwrap_or_default();
 
-    state
-        .0
-        .update_apply_desktop(&exe, move |phase| {
-            let _ = app.emit("update-progress", serde_json::json!({ "phase": phase }));
+    // Blocking download/install must not run on the UI thread, or the window freezes.
+    let eng = state.0.clone();
+    tauri::async_runtime::spawn_blocking(move || {
+        eng.update_apply_desktop(&exe, move |phase| {
+            let (name, pct) = match phase.split_once(':') {
+                Some((n, p)) => (n, p.parse::<u8>().ok()),
+                None => (phase, None),
+            };
+            let _ = app.emit(
+                "update-progress",
+                serde_json::json!({ "phase": name, "percent": pct }),
+            );
         })
         .map_err(|e| e.to_string())
+    })
+    .await
+    .map_err(|e| e.to_string())?
 }
 
 /// `true` when the process already has sufficient privileges to read raw disks.

apps/gui/src-tauri/tauri.conf.json

@@ -1,7 +1,7 @@
 {
   "$schema": "https://schema.tauri.app/config/2",
   "productName": "Guará",
-  "version": "1.4.0",
+  "version": "1.5.0",
   "identifier": "dev.guara.app",
   "build": {
     "frontendDist": "../ui"