fix(concurrency): serialize Win32 clipboard access and test env vars to prevent STATUS_HEAP_CORRUPTION

server/src/handlers/vision.rs

@@ -9,7 +9,10 @@ use std::borrow::Cow;
 use std::sync::Arc;
 
 
+static CLIPBOARD_LOCK: std::sync::Mutex<()> = std::sync::Mutex::new(());
+
 pub fn get_native_clipboard_text() -> Option<String> {
+    let _guard = CLIPBOARD_LOCK.lock().unwrap_or_else(|e| e.into_inner());
     for _ in 0..3 {
         if let Ok(mut clipboard) = arboard::Clipboard::new()
             && let Ok(text) = clipboard.get_text()
@@ -65,6 +68,7 @@ fn get_windows_png_clipboard_image() -> Option<image::DynamicImage> {
     None
 }
 pub fn get_native_clipboard_image() -> Option<image::DynamicImage> {
+    let _guard = CLIPBOARD_LOCK.lock().unwrap_or_else(|e| e.into_inner());
     #[cfg(target_os = "windows")]
     if let Some(img) = get_windows_png_clipboard_image() {
         return Some(img);
@@ -173,6 +177,7 @@ impl McpTool for ClipboardHandler {
                 let text_opt = req.text;
                 let image_path_opt = req.image_path;
                 let res = tokio::task::spawn_blocking(move || {
+                    let _guard = CLIPBOARD_LOCK.lock().unwrap_or_else(|e| e.into_inner());
                     let mut msgs = Vec::new();
 
                     if let Some(text) = &text_opt {