Initial commit: Paperless-ngx MCP Server

A Model Context Protocol (MCP) server for Paperless-ngx document management.

Features:
- Full CRUD operations for documents, tags, correspondents, document types,
  storage paths, and custom fields
- Document upload with retry logic (base64 and file path)
- Bulk operations with dry-run support
- Search with full-text and metadata filtering
- Pagination support across all list operations
- Proper error handling with McpResponse wrapper

Built with .NET 10 and the official MCP SDK.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

PaperlessMCP.Tests/PaperlessMCP.Tests.csproj

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