added new project document-intelligence-mcp

[amit-sharma-0111]

What does this PR do?
This PR adds the Document Intelligence MCP project built with Node.js.
It introduces functionality for intelligent document parsing and metadata extraction using AI-powered models. The module can analyze text, detect structure (headings, tables, entities), and generate summarized outputs that can be easily integrated into other Appwrite workflows or APIs.

Test Plan
Cloned the repository and set up the Node.js environment.
Installed dependencies using npm install.
Ran local tests using npm test to verify all modules compile and function correctly.
Verified the document analysis workflow by uploading multiple document formats (PDF, DOCX, TXT) to ensure accurate text extraction and structured output.
Validated API endpoints and response formats using Postman and cURL.
Related PRs and Issues
Related to ongoing efforts to improve Appwrite’s AI and document automation features.
No dependent PRs at the moment.
Have you read the Contributing Guidelines on issues?
Yes, I have read and followed the contributing guidelines.