CREATE TABLE context_servers (
  id BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
  project_id BIGINT UNSIGNED NOT NULL,
  name VARCHAR(255) NOT NULL,
  endpoint VARCHAR(1024) NOT NULL,
  transport VARCHAR(32) NOT NULL,
  authentication_config TEXT NULL,
  priority INT NOT NULL DEFAULT 0,
  enabled TINYINT(1) NOT NULL DEFAULT 1,
  configuration JSON NULL,
  created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
  updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  UNIQUE KEY uq_context_servers_project_name (project_id, name),
  CONSTRAINT fk_context_servers_project FOREIGN KEY (project_id) REFERENCES projects (id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;