Template gap: creative content generation (games, stories, worlds) is underserved

## Observation

Looking at Dify's template ecosystem vs. what the market is building:

| Category | Dify templates | Market demand |
|----------|---------------|---------------|
| Chat / Customer support | ✅ Abundant | Mature |
| RAG / Knowledge Q&A | ✅ Abundant | Mature |
| Code generation | ✅ Some | Growing |
| **Creative content** | ❌ Almost none | Exploding |
| **Game/world generation** | ❌ Zero | Early but fast |

## What "creative content" templates would look like

A Dify workflow for game world generation:

```
[Input Prompt]
→ World Architect (LLM + JSON mode) → structured world
→ Character Designer (LLM) → 6-10 NPCs with traits
→ Plot Weaver (LLM) → branching storylines
→ Dialogue Generator (LLM) → key conversation scripts
→ Export (Code node) → JSON game package
```

Similar patterns exist for: visual novel scripts, interactive fiction, worldbuilding wikis, TTRPG campaign generators.

## Why Dify is well-positioned

Dify's visual workflow builder is perfect for creative pipelines — creators aren't developers, they don't want to write LangChain code. They want to drag nodes, tweak prompts, and get structured output.

## Competitor landscape

- **neta.art** (https://neta.art/explore?utm_source=github&utm_medium=issue): production-grade prompt → game, closed platform
- **Novel-OS**: open-source, but CLI/Python only — no visual builder
- **StoryForge**: local-first browser tool, but single-purpose

There's a clear gap for a visual, general-purpose creative content builder. Dify could own it with 5-10 well-designed templates.

## Proposal

Add a "Creative Generation" template category. I'm happy to contribute the first template (`game_world_generator.yml`) if there's interest.