LangChain - NEAR NFT Creator

Description

**THE VIRAL LOOP:**
```
Agent creates NFTs
→ Uses NEAR NFT tool
→ Mints on Mintbase
```

**Deliverables:**
- Mintbase integration
- Metadata handling
- Collection management

**PUBLISHED TO:** PyPI, LangChain Hub

**Success Metrics:** 100+ NFTs minted via agents

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