feat: initial setup for adding document management documentation

[yoasyo25]

Jira Ticket:
🎫 DOCINT-1080

Change Type(s)

• Bugfix (if so, add before/after behavior description below)
• Docs
• New Feature
• Refactor
• Specs

Summary 📚

This pull request introduces initial documentation and navigation updates for the Document Management Integration feature. The main changes include adding new navigation entries and placeholder documentation pages to support future content related to Document Management.

Navigation updates:

• Added a new section to _data/navigation.yml for "Document Management Integration - EVERYTHING NEEDED BUT NOT INDEXED" with links to the introduction and technical guide pages.

New documentation pages:

• Created document-management-integration/document_management_access.md to outline access restrictions for Document Management documentation.

• Added document-management-integration/document_management_intro.md as a placeholder for the Document Management Integration overview.

• Added document-management-integration/document_management_technical_guide.md as a placeholder for the technical guide.

Relates to https://github.com/procore/dev-portal/pull/3754

[Copilot]

Pull request overview

This PR establishes the foundational structure for Document Management Integration documentation by creating placeholder pages and navigation entries, following the same pattern as the existing ERP Integration documentation.

Changes:

• Added three new documentation files with proper YAML front matter and placeholder content
• Added commented-out navigation entries for the new documentation section

Reviewed changes

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

File	Description
_data/navigation.yml	Added commented-out navigation section for Document Management Integration with links to intro and technical guide pages
document-management-integration/document_management_access.md	Created access restriction notice page for Document Management documentation
document-management-integration/document_management_intro.md	Created placeholder overview page for Document Management Integration
document-management-integration/document_management_technical_guide.md	Created placeholder technical guide page for Document Management Integration

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[cagmz]

Should this include document-management-access-required.md?

[yoasyo25]

I don't think we need to include document-management-access-required.md in the navigation section since the markdown is meant to be linked externally from the dev-portal as a landing page that informs users about restricted access and it's not part of the public documentation navigation structure.