feat: add n8n integration documentation and update navigation

[twangodev]

Summary by CodeRabbit

• New Features

  • n8n integration is now available, providing text-to-speech, speech-to-text, and voice cloning capabilities.

• Documentation

  • Added comprehensive n8n integration guide with detailed installation and configuration instructions.

• Style

  • Fixed icon background styling in dark mode for improved visual clarity.

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[coderabbitai]

Caution

Review failed

The pull request is closed.

Walkthrough

Adds documentation and integration for Fish Audio's n8n community node, including a new developer guide page, updated navigation manifest, and CSS styling fix to remove dark mode backgrounds from icon images.

Changes

Cohort / File(s)	Change Summary
Documentation & Navigation for n8n Integration developer-guide/integrations/n8n.mdx, docs.json	New integration documentation page with frontmatter, installation, configuration, and features sections. Navigation entry and redirect mapping added to docs.json for the n8n integration.
Styling Updates custom.css	CSS rule added to force transparent background for icon images (img elements with src containing "/images/") to override dark mode styling.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

• CSS selector specificity and actual rendering behavior across themes
• Accuracy of n8n integration documentation and command examples
• docs.json syntax validity and proper redirect/navigation path mappings

Poem

🐰 A node for voices, now documented with care,
n8n meets Fish Audio in the integration square,
Icons shed their shadows, transparent and bright,
Paths guide the seekers through navigation's light! ✨

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch feat/n8n

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📜 Recent review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between b0cd290 and 1dba9cd.

⛔ Files ignored due to path filters (1)

• images/n8n.png is excluded by !**/*.png

📒 Files selected for processing (3)

• custom.css (1 hunks)
• developer-guide/integrations/n8n.mdx (1 hunks)
• docs.json (2 hunks)

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[Copilot]

Pull request overview

This PR adds comprehensive documentation for the n8n integration, enabling users to automate Fish Audio workflows using n8n's workflow automation platform. The integration covers installation, configuration, and usage of the Fish Audio community node in n8n.

• Adds new n8n integration documentation page with installation and configuration instructions
• Updates navigation structure to include n8n in the integrations section
• Adds redirect from /n8n to the full integration documentation path

Reviewed changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated no comments.

File	Description
developer-guide/integrations/n8n.mdx	New documentation page describing n8n integration setup, features (TTS, STT, voice models, account management), and resource links
docs.json	Adds n8n to integrations navigation menu and creates URL redirect from /n8n shortlink
images/n8n.png	Logo image for n8n integration page icon
custom.css	Adds CSS rule to remove dark mode background from page icon images

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