fix: improve Windows managed OpenCode shutdown and launch behavior (#844)

* fix: windows shutdown and restart orphaned cleanup

* fix: launch managed OpenCode directly on Windows
Unwrap OpenCode wrappers to launch directly on Windows, improving shutdown reliability and avoid orphans.

* fix: restore desktopNotifyEnabled in health snapshot

---------

Signed-off-by: Dr. Zed <142888684+DocterZed@users.noreply.github.com>
Co-authored-by: Bohdan Triapitsyn <artmore@protonmail.com>

packages/web/server/lib/opencode/shutdown-runtime.js

@@ -17,6 +17,7 @@ export const createGracefulShutdownRuntime = (dependencies) => {
     getOpenCodeProcess,
     setOpenCodeProcess,
     killProcessOnPort,
+    waitForPortRelease,
     getServer,
     getUiAuthController,
     setUiAuthController,
@@ -58,7 +59,7 @@ export const createGracefulShutdownRuntime = (dependencies) => {
       if (openCodeProcess) {
         console.log('Stopping OpenCode process...');
         try {
-          openCodeProcess.close();
+          await openCodeProcess.close();
         } catch (error) {
           console.warn('Error closing OpenCode process:', error);
         }
@@ -66,6 +67,9 @@ export const createGracefulShutdownRuntime = (dependencies) => {
       }
 
       killProcessOnPort(portToKill);
+      if (!(await waitForPortRelease(portToKill, 5000))) {
+        console.warn(`Timed out waiting for OpenCode port ${portToKill} to be released during shutdown`);
+      }
     } else {
       console.log('Skipping OpenCode shutdown (external server)');
     }