[MCP] Add MCP Connection String Generation and Entra Application Management

[onbuyuka]

Summary

This PR adds features to help users easily configure third-party MCP clients to connect to Business Central by providing connection string generation and Entra application management capabilities.

Changes

New Objects

• Table 8351 "MCP Entra Application" - Stores registered third-party Entra applications with their Client IDs, names, and descriptions
• Page 8357 "MCP Entra Application List" - List page for managing registered Entra applications for MCP client connections
• Page 8358 "MCP Connection String" - Dialog page to display and download MCP connection strings in JSON format

Modified Objects

• MCPConfigImplementation.Codeunit.al - Added new #region Connection String with:

  • GenerateConnectionString() - Builds formatted JSON connection string with tenant ID, environment name, company, and configuration name
  • ShowConnectionString() - Opens the connection string dialog
  • Auto-detection of TIE vs Production environments for correct MCP URL prefix

• MCPConfigCard.Page.al - Added promoted actions:

  • "Entra Applications" - Navigate to Entra application list
  • "Connection String" - Generate connection string for current configuration

• MCPConfigList.Page.al - Added same promoted actions as Config Card

• Permission Sets (MCPObjects, MCPAdmin, MCPRead) - Added permissions for new table and pages

Features

1. Connection String Generation - Automatically generates properly formatted JSON connection strings with:

   • Auto-detected MCP URL (TIE or Production)
   • Tenant ID, Environment Name, Company, and Configuration Name in headers
   • Pretty-printed JSON displayed using RichContent with <pre> tags
   • Download as .txt file with naming pattern mcp-config-{configname}.txt

2. Entra Application Registry - Allows admins to register third-party Entra applications so users can easily find the Client IDs needed for MCP client configuration

Work Item(s)

Fixes AB#616112