Track per-app TTS concurrency in Redis, route capped upstreams by
available pool capacity, and surface pool saturation metrics. Document
the Voice Pack plan so the remaining backend and card-binding work has
an explicit implementation map.
- Added a new ObservableGauge for distinct active users to track real active user count, mitigating session row inflation issues.
- Updated the Grafana dashboard to reflect changes, including the removal of redundant WS Connections panel and the addition of new metrics for active sessions and distinct users.
- Improved documentation for verification automation processes, outlining a structured approach to automate verification steps and maintain evidence of tests.
- Moved RateLimitMetrics import path to a more centralized location.
- Introduced a new file for active sessions gauge to track user sessions in the database.
- Updated index.ts to include new metrics and ensure proper initialization of observability metrics.
- Modified various routes and services to utilize the new observability structure.
- Added smoke tests for HTTP and WebSocket metrics to ensure proper metric registration and functionality.
- Enhanced error handling for metrics reading failures to improve observability.
- Added new metrics for email service including send, failures, and duration tracking.
- Introduced rate limit metrics to monitor blocked requests and improve abuse detection.
- Enhanced billing metrics to track credited and unbilled flux, as well as TTS character processing.
- Updated OpenAI and Stripe routes to utilize new metrics for better revenue tracking and rate limiting.
- Implemented a smoke test for OpenTelemetry metrics registration to ensure visibility at startup.
RainbowBird