ci: add documentation rebuild trigger

[bd-mkt]

Summary

This PR adds an automated workflow to trigger documentation rebuilds on soliplex.github.io whenever markdown documentation changes are pushed to this repository.

Changes

• Adds .github/workflows/trigger-docs-deploy.yml
• Triggers on changes to:
  • docs/**/*.md files
  • docs/**/*.mdx files
  • README.md file
  • The workflow file itself

How It Works

1. When markdown documentation changes are pushed to main/master branch
2. This workflow sends a repository_dispatch event to soliplex.github.io
3. The main documentation site rebuilds automatically with the latest changes
4. Updated documentation is deployed to https://soliplex.github.io/

Prerequisites

✅ Organization secret DOCS_DEPLOY_TOKEN is configured with access to this repository.

Path Filtering

The workflow only triggers on markdown file changes:

• ✅ docs/**/*.md - Markdown files in docs directory
• ✅ docs/**/*.mdx - MDX files (for React-based docs)
• ✅ README.md - Root readme file
• ❌ Code files, images, configs, etc. will NOT trigger

This prevents unnecessary documentation builds when non-documentation files change.

Testing

After merging:

1. Make a change to any markdown file in docs/ or README.md
2. Push to main branch
3. Check soliplex.github.io Actions to see the documentation rebuild
4. Verify the changes appear on the live site within 2-3 minutes