feat(notification): Register tools in index.js and mcp-server.js

[coderooz]

Summary

Register the new notification tools in the tool handler map and MCP server dispatch.

Acceptance Criteria

• Add
  otify_user\ and \get_notification_history\ to \ ools/index.js\ toolHandlers map
• Add tool definitions to \mcp-server.js\ \getTools()\ array
• Add dispatch handlers in \mcp-server.js\ \ ools/call\ if-chain
• Follow existing pattern (see \play_notification_sound\ registration)

Files to Modify

• \ ools/index.js\ — toolHandlers map + getTools()
• \mcp-server.js\ — getTools() array + tools/call dispatch

Related

• Milestone: v2.6.0 — Audio Notification System
• Depends on: 💬 General Discussion — Thoughts, Questions, and Feedback #2 (notification tools)