docs: add HappyHorse 1.1 partner node tutorial

[lin-bot23]

Summary

Adds a new tutorial page for HappyHorse 1.1 covering the three available Partner Node workflows (T2V, I2V, R2V) with native synchronized audio generation.

What's New

HappyHorse 1.1 is the latest release of Alibaba's production-grade video generation model, now available in ComfyUI as a Partner Node. It targets production-critical use cases — short episodic series, e-commerce commercials, brand marketing content, and game cutscenes.

Key capabilities

• Native audio-video sync: Dialogue, SFX, and background music in one render pass
• Multi-image R2V: Up to 9 reference images per generation with preserved identity
• Multi-character consistency: Multiple character references stay distinct
• Long-context prompts: Handles 2,500+ characters with 6-8 consecutive scene descriptions
• Cinematic language: Shot-reverse-shot, tracking shot, cohesive transitions
• Output: 720p / 1080p, 3-15 seconds, multiple aspect ratios

Workflows added

• api_happyhorse1_1_t2v — Text-to-Video
• api_happyhorse1_1_i2v — Image-to-Video (with girl_lean_on_horse.png sample)
• api_happyhorse1_1_r2v — Reference-to-Video (with character + scene reference samples)

Files changed

• tutorials/partner-nodes/happyhorse/happyhorse1-1.mdx (EN, new)
• zh/tutorials/partner-nodes/happyhorse/happyhorse1-1.mdx (new)
• ja/tutorials/partner-nodes/happyhorse/happyhorse1-1.mdx (new)
• ko/tutorials/partner-nodes/happyhorse/happyhorse1-1.mdx (new)
• docs.json (registered in all four languages)

Related

• Workflow templates: Comfy-Org/workflow_templates already includes the 3 HH 1.1 templates (added in docs: add Topaz Astra 2 partner-node page #957)
• Pricing entries for HH 1.1 are already in tutorials/partner-nodes/pricing.mdx (Add HappyHorse 1.1, Seedance 2.0 4K, and Grok 1080P pricing #1182)
• HH 1.0 tutorial: tutorials/partner-nodes/happyhorse/happyhorse1-0.mdx

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro Plus

Run ID: 26d21d56-4ce4-4ac0-a929-e37d498adb94

📥 Commits

Reviewing files that changed from the base of the PR and between 6b8eacb and cdebd20.

📒 Files selected for processing (5)

• docs.json
• ja/tutorials/partner-nodes/happyhorse/happyhorse1-1.mdx
• ko/tutorials/partner-nodes/happyhorse/happyhorse1-1.mdx
• tutorials/partner-nodes/happyhorse/happyhorse1-1.mdx
• zh/tutorials/partner-nodes/happyhorse/happyhorse1-1.mdx

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📝 Walkthrough

Walkthrough

A new HappyHorse 1.1 video-generation tutorial page is added in four locales (English, Chinese, Japanese, Korean). Each page covers model features, T2V/I2V/R2V workflow sections with Comfy Cloud run links and download cards, and a getting-started checklist. Navigation entries for all four locales are registered in docs.json.

Changes

HappyHorse 1.1 Tutorial (all locales)

Layer / File(s)	Summary
English tutorial page tutorials/partner-nodes/happyhorse/happyhorse1-1.mdx	Adds the canonical page with frontmatter, shared snippet imports, feature highlights (native audio-video sync, multi-reference, cinematic framing, flexible output), and T2V/I2V/R2V sections each with Comfy Cloud run and workflow-download cards, plus a getting-started numbered list.
Localized tutorial pages zh/tutorials/partner-nodes/happyhorse/happyhorse1-1.mdx, ja/tutorials/partner-nodes/happyhorse/happyhorse1-1.mdx, ko/tutorials/partner-nodes/happyhorse/happyhorse1-1.mdx	Adds Chinese, Japanese, and Korean translations following the same structure — frontmatter with translation-source hash, feature overview, T2V/I2V/R2V card sections, and getting-started steps. You could say these pages are quite a stable addition! 🐴
Navigation registration docs.json	Inserts sidebar navigation entries for the new happyhorse1-1 page under each locale's HappyHorse partner-node group, and adjusts end-of-file whitespace.

🚥 Pre-merge checks | ✅ 2

✅ Passed checks (2 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

✨ Simplify code

• Create PR with simplified code

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