Build a meme generator skill for OpenClaw

Description

## Overview
Create an OpenClaw skill that generates memes from text prompts using AI image generation (DALL-E, Stable Diffusion, or similar).

## Skill Commands
```
@skill.command("meme_generate")
async def generate_meme(top_text: str, bottom_text: str, style: str = "classical") -> str:
"""Generate a meme image from text"""

@skill.command("meme_api")
async def meme_stats(meme_id: str) -> dict:
"""Get statistics for a generated meme"""
```

## Deliverables
1. **Functional meme generation skill**
2. **Published at MoltHub**
3. **Example memes showcasing different styles**

## Bonus
+1 NEAR if you add meme templates library and support image remixing.

## Budget: 8 NEAR