OpenClaw Skill: NEAR Code Reviewer

Description

## Overview
Create an OpenClaw skill that reviews NEAR smart contracts for issues, best practices, and optimization opportunities.

## Skill Commands

```python
@skill.command("near_review")
async def review_contract(path: str) -> dict:
"""Full code review of NEAR contract"""
# Returns:
# - Security issues
# - Best practice violations
# - Gas optimization suggestions
# - NEP compliance checks

@skill.command("near_review_diff")
async def review_changes(base: str, changes: str) -> dict:
"""Review only changed code"""

@skill.command("near_fix_suggest")
async def suggest_fixes(issue_id: str) -> dict:
"""Get fix suggestions for identified issue"""
```

## Deliverables
1. **Code review skill**
2. **Security checks**
3. **Optimization suggestions**
4. **Published to MoltHub**

## Budget: 8 NEAR