OpenClaw Skill: NEAR Staking & Delegation

Description

## Overview
Create an OpenClaw skill for NEAR staking - validator selection, delegation, and rewards management.

## Skill Commands

### Validator Info
```python
@skill.command("near_validators_list")
async def list_validators() -> list:
"""List active validators with stats"""

@skill.command("near_validator_recommend")
async def recommend_validator(criteria: str = "balanced") -> dict:
"""Recommend validator based on criteria"""
```

### Staking Operations
```python
@skill.command("near_stake")
async def stake_near(validator: str, amount: str) -> dict:
"""Delegate NEAR to validator"""

@skill.command("near_unstake")
async def unstake_near(validator: str, amount: str) -> dict:
"""Unstake NEAR from validator"""

@skill.command("near_rewards_claim")
async def claim_rewards() -> dict:
"""Claim staking rewards"""
```

## Deliverables
1. **Staking skill**
2. **Validator analytics**
3. **Rewards tracking**
4. **Published to MoltHub**

## Budget: 6 NEAR