[FEATURE] Hope it can support the evaluation of workflows.

### 📋 Please ensure that:

- [x] I have searched existing issues to avoid duplicates
- [x] I have provided a clear problem statement and solution
- [x] I understand this is a feature request and not a bug report
- [x] I am willing to help implement this feature if needed
- [x] I have submitted this feature request in English (otherwise it will not be processed)

### 🎯 Problem Statement

There is a need to evaluate applications involving agents or workflows, but the current prompts are quite limited. We hope to access the workflows configured on coze-studio in order to evaluate them.

### 💡 Proposed Solution

During the experimental setup, workflows can be selected as evaluation targets, just like in the online version.

### 📋 Use Cases

1. Enable the system to evaluate workflows, benefiting more intelligent agent users.
2. Facilitate the integration of coze-studio and coze-loop ecosystems, helping users stay more focused.

### ⚡ Priority

Critical - Essential for my workflow

### 🔧 Component

Evaluation

### 🔄 Alternatives Considered

_No response_

### 🎨 Mockups/Designs

_No response_

### ⚙️ Technical Details

_No response_

### ✅ Acceptance Criteria

_No response_

### 📝 Additional Context

_No response_