fix: filter out bookmarked courses from @ mention

[qianqiang-del]

Problem Description

The original @ feature displays all courses, including:

• Courses created by the user (isOwner: true)
• Courses bookmarked from other users (isOwner: false)

Original Drawbacks

1. Poor User Experience:
   → Bookmarked courses cannot be modified
   → Selecting them leads to confusion as they cannot be edited

2. Inconsistent Functionality:
   → Displays non-operable options
   → Violates the "only show operable content" design principle

3. Low Efficiency:
   → Users need to manually identify which courses can be modified
   → Increases cognitive burden

Fix

Added filter condition in courseOptions calculation:
.filter((course) => course.isOwner !== false)

Filters out courses where isOwner is false,
only displays courses created by the user.

User Benefits

1. Clearer:
   → Only shows modifiable courses
   → Reduces user confusion

2. More Efficient:
   → Users don't need to identify course types
   → Can directly select and operate

3. More Consistent:
   → All displayed courses can be modified
   → Meets user expectations

Modified File

components/workbench/workspace/WorkspaceShell.tsx