Run tests, verify the build, and perform final approval.

**Overall piece verification:**
1. Check all reports in the report directory and verify overall piece consistency
   - Does implementation match the plan?
   - Were all review movement findings properly addressed?
   - Was the original task objective achieved?
2. Whether each task spec requirement has been achieved
   - Extract requirements one by one from the task spec
   - For each requirement, identify the implementing code (file:line)
   - Verify the code actually fulfills the requirement (read the file, run the test)
   - Do not rely on the plan report's judgment; independently verify each requirement
   - If any requirement is unfulfilled, REJECT

**Report verification:** Read all reports in the Report Directory and
check for any unaddressed improvement suggestions.

**Validation output contract:**
```markdown
# Final Verification Results

## Result: APPROVE / REJECT

## Requirements Fulfillment Check

Extract requirements from the task spec and verify each one individually against actual code.

| # | Requirement (extracted from task spec) | Met | Evidence (file:line) |
|---|---------------------------------------|-----|---------------------|
| 1 | {requirement 1} | ✅/❌ | `src/file.ts:42` |
| 2 | {requirement 2} | ✅/❌ | `src/file.ts:55` |

- If any ❌ exists, REJECT is mandatory
- ✅ without evidence is invalid (must verify against actual code)
- Do not rely on plan report's judgment; independently verify each requirement

## Verification Summary
| Item | Status | Verification method |
|------|--------|-------------------|
| Tests | ✅ | `npm test` (N passed) |
| Build | ✅ | `npm run build` succeeded |
| Functional check | ✅ | Main flows verified |

## Deliverables
- Created: {Created files}
- Modified: {Modified files}

## Outstanding items (if REJECT)
| # | Item | Reason |
|---|------|--------|
| 1 | {Item} | {Reason} |
```

**Summary output contract (only if APPROVE):**
```markdown
# Task Completion Summary

## Task
{Original request in 1-2 sentences}

## Result
Complete

## Changes
| Type | File | Summary |
|------|------|---------|
| Create | `src/file.ts` | Summary description |

## Verification commands
```bash
npm test
npm run build
```
```