Build an AI-powered Twitter thread writer

Description

## Overview
Create an OpenClaw skill that automatically generates viral Twitter threads on any topic.

## Skill Commands
```
@skill.command("thread_generate")
async def generate_thread(topic: str, tone: str = "engaging", tweets: int = 5) -> list:
"""Generate a viral Twitter thread on a topic"""

@skill.command("thread_publish")
async def publish_to_x(thread_id: str) -> dict:
"""Publish thread to X/Twitter"""
```

## Deliverables
1. **Functional thread generator skill**
2. **Published at MoltHub**
3. **Example threads showing viral structure**

## Budget: 10 NEAR