Implement Solution Drafts

[Mkalbani]

Description

Allow users to save solution drafts before submitting.

Why This Matters

• Users can work on solutions over multiple sessions
• Prevent losing work if browser crashes

Acceptance Criteria

• Add status field to Solution (DRAFT, PUBLISHED)
• Drafts not visible to others
• GET /solutions/drafts (my drafts)
• POST /solutions/:id/publish (convert draft → published)
• Drafts don't get scored until published
• Auto-save draft every 30 seconds (optional)

Files to Change

• src/solutions/entities/solution.entity.ts (add status enum)
• src/solutions/solutions.service.ts (filter by status)
• src/solutions/solutions.controller.ts (new endpoints)

Database Migration

ALTER TABLE solutions ADD COLUMN status VARCHAR(20) DEFAULT 'PUBLISHED';

[Lynndabel]

Hello, I have carefully reviewed this issue description and acceptance criteria and will like to work on this please. ETA is 3hours. Please assign me this, thanks

[Nemenwq]

Hi maiantainer, i just reviewed the issue details and will like to work on this. ETA: 6hours

[Nemenwa]

Hi, can i take this issue please? I can implement solution drafts. eta: 5hours