docs: add comprehensive analytics extension strategy

Add strategic roadmap for extending Sentry and Mixpanel capabilities to create a manufacturing intelligence platform.

Key sections:
- Current state assessment and limitations
- Phase 1: Enhanced error intelligence with manufacturing context
- Phase 2: Predictive analytics and behavioral intelligence
- Phase 3: AI-driven insights and data fusion
- Manufacturing-specific extensions for Industry 4.0
- Privacy compliance enhancements
- Implementation roadmap with success metrics

This document serves as a blueprint for transforming basic telemetry into actionable manufacturing intelligence while maintaining privacy-first principles.

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

Co-Authored-By: Claude <[email protected]>

Author: hemanandr