feat(tarko): refine workspace design

[ulivz]

Summary

This pull request simplifies the workspace configuration design, removes isolateSessions, and changes the workspace semantics directly to workspace.workingDirectory:

Before

/**
 * Workspace options for Agent, currently only required when you need to create an Agent
 * that involves file reading and writing, including file-system management, commands execution scope.
 */
export interface AgentWorkspaceOptions {
  /**
   * Workspace settings.
   */
  workspace?: {
    /**
     * Directory to use for filesystem operations
     *
     * @defaultValue Defaults to current working directory if not specified
     */
    workingDirectory?: string;

    /**
     * Whether to isolate workspace for each session by creating a subdirectory with session ID
     * When true, creates: workingDirectory/sessionId
     * When false, uses the workingDirectory directly for all sessions
     *
     * @defaultValue false
     */
    isolateSessions?: boolean;
  };
}

After

/**
 * Workspace options for Agent, currently only required when you need to create an Agent
 * that involves file reading and writing, including file-system management, commands execution scope.
 */
export interface AgentWorkspaceOptions {
  /**
   * Directory to use for filesystem operations
   *
   * @defaultValue Defaults to current working directory if not specified
   */
  workspace?: string;
}

Checklist

• Added or updated necessary tests (Optional).
• Updated documentation to align with changes (Optional).
• Verified no breaking changes, or prepared solutions for any occurring breaking changes (Optional).
• My change does not involve the above items.

[netlify]

✅ Deploy Preview for agent-tars-docs ready!

Name	Link
🔨 Latest commit	81f029b
🔍 Latest deploy log	https://app.netlify.com/projects/agent-tars-docs/deploys/689074a4dc0bee00081da342
😎 Deploy Preview	https://deploy-preview-1008--agent-tars-docs.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify project configuration.