. Add `course-card.tsx` improvements with enrollment status

[DeFiVC]

What: Improve the CourseCard component to show enrollment status, progress percentage, and quick actions (enroll, continue).

Why: The current CourseCard doesn't show whether the user is enrolled or their progress. Users need to see this at a glance in the course catalog.

Scope: Add enrolled and progress props to CourseCard. Show enrolled badge, progress bar, and appropriate action button (Enroll vs Continue Learning). Add hover state with quick actions.

Acceptance criteria:

• Enrolled courses show badge and progress
• Action button changes based on enrollment status
• Progress bar shows completion percentage
• Hover reveals quick actions

Technical context: src/components/course/course-card.tsx — existing CourseCard. src/app/courses/page.tsx:135-143 — CourseCard usage.

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[anifast-123]

@anifast-123 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hello maintainer, i would like to work on this issue

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[Robotron2]

@Robotron2 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

I'm interested in fixing this issue. Please assign it to me if it's available.

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[jajafwangshak86-ops]

@jajafwangshak86-ops has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Can I handle this issue please

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Congratulations, @Robotron2! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on August 31, 2026.

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[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox!

@Robotron2's PR #397 was approved and merged by @DeFiVC.

🏆 @Robotron2: You earned 40 FoxPoints for this contribution! Your current tier: Builder (1,105 total points). Track your full progress on GrantFox.

👏 Great work, @Robotron2! Keep contributing to ChainLearnOfficial.

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This issue has been completed by @Robotron2 as part of the Stellar Wave Program's 8th Wave 🥳

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