Add blog post: MongoDB Time-Series Collections for IoT and Analytics

Comprehensive tutorial covering MongoDB time-series collections for high-performance
IoT data management, sensor analytics, and real-time temporal data processing.
Includes practical examples of time-series optimization, aggregation patterns,
and SQL-familiar temporal operations using QueryLeaf.

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

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

Author: rathboma