chore: write panic message to stdout in panic hook (#989)

This commit updates the panic hook implementation to log the panic
message to stdout as well, which would make debugging easier. It is
hightly possible that a panic may get ignored by us when we run Coco
app in the dev mode (since the hook only writes msg to the panic log file).

docs/content.en/docs/release-notes/_index.md

@@ -20,6 +20,8 @@ Information about release notes of Coco App is provided here.
 
 ### ✈️ Improvements
 
+- chore: write panic message to stdout in panic hook #989
+
 ## 0.9.0 (2025-11-19)
 
 ### ❌ Breaking changes

src-tauri/src/main.rs

@@ -69,6 +69,9 @@ fn setup_panic_hook() {
                 eprintln!("Panic hook error: Failed to open panic log file: {}", e);
             }
         }
+
+        // Write to stdout, with a new-line char since stdout is line-buffered.
+        println!("{}\n", panic_log);
     }));
 }