## Your Task US-024

1. Read the full app PRD at `prd-main.md` (in the same directory as this file)
2. Read the PRD at `prd.json` (in the same directory as this file)
3. Read the progress log at `progress.txt` (check Codebase Patterns section first)
4. **DO YOUR JOB**
5. Update the PRD to set `passes: true` for the completed story
6. Append your progress to `progress.txt`

## Progress Report Format

APPEND to progress.txt (never replace, always append):
```
## [Date/Time] - [Story ID]
- What was implemented
- Files changed
- **Learnings for future iterations:**
  - Patterns discovered (e.g., "this codebase uses X for Y")
  - Gotchas encountered (e.g., "don't forget to update Z when changing W")
  - Useful context (e.g., "the evaluation panel is in component X")
---
```

## USER REQUEST
{
  "id": "US-024",
  "title": "AI checkpoint suggestions UI",
  "description": "As a user, I want the AI to suggest timeline checkpoints from my meeting notes, which I can approve or reject directly in the timeline.",
  "acceptanceCriteria": [
    "'Suggest checkpoints' shadcn/ui Button (variant=outline, sparkles Lucide icon) in the Project Detail timeline header calls ai.chat with a suggest_checkpoints intent for the current project",
    "Suggested checkpoints returned by @ProjectAgent are inserted into the checkpoints table via checkpoints.create with isAiSuggested=1, isApproved=0",
    "Pending suggestions appear as shadcn/ui Card components (with dashed border via className 'border-dashed') above or below the GanttChart in the Project Detail timeline section",
    "'Approve' shadcn/ui Button (variant=default, size=sm) on each card calls checkpoints.update({ id, isApproved: 1 }); the checkpoint then appears as a normal dot on the Gantt",
    "'Reject' shadcn/ui Button (variant=ghost, size=sm) calls checkpoints.delete({ id }) and removes the card",
    "All UI uses shadcn/ui components (already installed)",
    "Typecheck passes",
    "Verify in browser using dev-browser skill"
  ],
  "priority": 24,
  "passes": false,
  "notes": ""
}