Prune Completed Tasks

Remove completed tasks from UNIFIED_PLAN.md and archive them.

Instructions

1. Read UNIFIED_PLAN.md from current working directory or repository root.

2. Identify completed tasks (status contains "Complete").

3. For each completed task:

   • Remove the entire task section (from ## Task N: to the next ---)
   • Add a summary line to a "Completed Tasks Archive" section at the end

4. Important:

   • DO NOT renumber remaining tasks - task numbers are permanent
   • Update the "Last Updated" date

5. Show what was pruned:

# Pruned Tasks

Archived 2 completed tasks:
- Task 1: V3 Mainnet Fork Tests
- Task 2: Slipstream Utils

Remaining tasks: 3, 5, 7, 8, 9, 10

6. Commit the changes with message: docs: prune completed tasks from UNIFIED_PLAN.md

Archive Format

Add to end of UNIFIED_PLAN.md:

## Completed Tasks Archive

| Task | Title | Completed |
|------|-------|-----------|
| 1 | V3 Mainnet Fork Tests | 2026-01-05 |
| 2 | Slipstream Utils | 2026-01-07 |

Error Handling

• If no completed tasks: Inform user, no changes made
• If UNIFIED_PLAN.md not found: Ask user to specify location