Platform Metrics

Track API latency, database connections, audit failures, and stored-file cleanup.

Metrics

Metric	Labels	Measures
`http_request_duration_seconds`, `http_request_summary_seconds`	`method`, `route`, `status_code`	API request duration, as a histogram and as a summary with quantiles
`database_pool_connections`	`state`	Database pool connections: `total`, `idle`, and `waiting`
`database_pool_size_limit`		Maximum pool size per process
`audit_write_failures_total`	`source`, `resource_type`	Audit log rows that failed to save
`file_storage_orphaned_objects_total`	`provider`, `scope`	Stored files left behind by a failed delete
`chat_message_feedback_total`	`feedback`	Thumbs up, thumbs down, and cleared ratings on chat answers
`process_`, `nodejs_`		Standard Node.js process metrics: CPU, memory, heap, event loop lag, and garbage collection