Rename incorrectly named OpenAI configuration settings since
they're used to instantiate WhisperX client which is not OpenAI
compatible, preventing confusion about actual service dependencies.
Include PostHog analytics configuration example in the summary
environment file with default disabled state. This provides developers
with clear setup guidance while maintaining privacy-first defaults.
Consolidate summary service into main development stack to centralize
development environment management and simplify service orchestration
with shared infrastructure like MinIO storage.
