fix(tauri): recursively resolve Journal.Sidecar.exe path

Journal.App/src-tauri/src/lib.rs

@@ -161,9 +161,49 @@ fn resolve_sidecar_path(root: &Path) -> Result<PathBuf, String> {
         return Ok(release_path);
     }
 
+    let sidecar_root = root.join("Journal.Sidecar");
+    if let Some(path) = find_sidecar_executable(&sidecar_root) {
+        return Ok(path);
+    }
+
     Err("Journal.Sidecar.exe not found. Build Journal.Sidecar first.".to_string())
 }
 
+fn find_sidecar_executable(search_root: &Path) -> Option<PathBuf> {
+    if !search_root.exists() {
+        return None;
+    }
+
+    let mut stack = vec![search_root.to_path_buf()];
+    while let Some(dir) = stack.pop() {
+        let Ok(entries) = fs::read_dir(&dir) else {
+            continue;
+        };
+
+        for entry in entries {
+            let Ok(entry) = entry else {
+                continue;
+            };
+            let path = entry.path();
+            if path.is_dir() {
+                stack.push(path);
+                continue;
+            }
+
+            let is_sidecar_exe = path
+                .file_name()
+                .and_then(|name| name.to_str())
+                .map(|name| name.eq_ignore_ascii_case("Journal.Sidecar.exe"))
+                .unwrap_or(false);
+            if is_sidecar_exe {
+                return Some(path);
+            }
+        }
+    }
+
+    None
+}
+
 async fn send_with_managed_sidecar(
     state: &SidecarState,
     input_line: &str,