Add PostHog analytics integration#630
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Adds PostHog for tracking user behavior: - Rage clicks detection - Dead clicks detection - Session recordings (with masked inputs) - Heatmaps - Performance metrics Configuration: - POSTHOG_API_KEY (optional) - enable by setting your project API key - POSTHOG_HOST (default: https://us.i.posthog.com) When a user is logged in, they're identified by their user ID for filtering sessions. The script respects DNT (Do Not Track) browser settings and masks all form inputs except search fields. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Frontend: - Enable capture_exceptions option - Add window.onerror handler for uncaught errors - Add onunhandledrejection handler for promise rejections Backend: - Add posthog-node package for server-side tracking - Create server/src/utils/posthog.ts utility with: - captureEvent() for custom events - captureException() for error tracking - identifyUser() for user identification - shutdownPostHog() for graceful shutdown - Add global Express error middleware to capture unhandled errors - Flush PostHog events on server shutdown 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Summary
POSTHOG_API_KEYenvironment variableConfiguration
POSTHOG_API_KEYPOSTHOG_HOSThttps://us.i.posthog.comTest plan
POSTHOG_API_KEYin environment🤖 Generated with Claude Code