Automatically instrument PostHog analytics, event tracking, and feature flags across multiple frameworks.

• Supports JavaScript/TypeScript, React, Python, and Node.js with framework-specific setup patterns
• Covers three core capabilities: event capture with custom properties, feature flag evaluation for gradual rollouts, and user identification
• Detects existing PostHog configuration and adds instrumentation without duplicating setup
• Includes best practices for event naming conventions, property inclusion, and session-based user identification