v2.1.0 Python 3.14, per-request proxy and stability fixes

This release improves proxy handling, startup behavior, and operational defaults while keeping the API stable.

Highlights

• Per-request proxy overrides via X-Proxy-* headers.
• Safer startup and runtime defaults for containerized and local runs.
• Health checks and init behaviors aligned with the service lifecycle.

Changes

• Request-level proxy selection is supported via headers, allowing per-request routing.
• HOST and PORT are now configurable with a default port of 8191.
• Init mode is available for pre-warming and startup checks.
• Health check behavior is standardized for runtime monitoring.

New Contributors

• @oldwombat made their first contribution in #256
• @Thirawyn91 made their first contribution in #267
• @luismco made their first contribution in #290

Full Changelog: v2.0.1...v2.1.0