Fix Internal Server Error after SSH server add (server_info must be a dict).

Co-authored-by: Cursor <cursoragent@cursor.com>

app.py

@@ -2273,11 +2273,17 @@ async def api_add_server(request: Request, req: AddServerRequest):
         ssh = SSHManager(host, req.ssh_port, username, req.password, req.private_key)
         try:
             ssh.connect()
-            server_info = ssh.test_connection()
+            raw_info = ssh.test_connection()
             ssh.disconnect()
         except Exception as e:
             return JSONResponse({'error': f'Connection failed: {str(e)}'}, status_code=400)
 
+        # Always store as an object — legacy test_connection() returns a plain string
+        if isinstance(raw_info, dict):
+            server_info = raw_info
+        else:
+            server_info = {'uname': str(raw_info or '').strip()}
+
         server = {
             'name': name, 'host': host, 'ssh_port': req.ssh_port,
             'username': username, 'password': req.password,
@@ -2328,11 +2334,16 @@ async def api_edit_server(request: Request, server_id: int, req: EditServerReque
         ssh = SSHManager(new_host, new_port, new_user, new_pass, new_key)
         try:
             ssh.connect()
-            server_info = ssh.test_connection()
+            raw_info = ssh.test_connection()
             ssh.disconnect()
         except Exception as e:
             return JSONResponse({'error': f'Connection failed: {e}'}, status_code=400)
 
+        if isinstance(raw_info, dict):
+            server_info = raw_info
+        else:
+            server_info = {'uname': str(raw_info or '').strip()}
+
         server['name'] = new_name
         server['host'] = new_host
         server['ssh_port'] = new_port