OpenSERP v0.6.0

This release focuses on server reliability, proxy control, and deployment readiness.

Highlights

Added /health endpoint for lightweight service checks.
Added retries, circuit breaker protection, optional dedicated-endpoint fallback, and CORS controls for server mode.
Added bounded TTL response cache for dedicated and mega endpoints.
Added proxy support with tagged proxy pools, health-based rotation, fail-closed behavior, and runtime proxy selection.
Added per-request proxy override via X-Use-Proxy header.
Added proxy and resilience observability through /stats, /stats/cache, /stats/proxy, and /stats/cb.
Added custom browser binary path support.
Expanded query controls with Google filter support and broader start pagination support.

Reworked proxy configuration around proxies.global, proxies.entries, and per-engine proxy tags.
Added lazy browser reuse per effective proxy to avoid duplicate browser launches across engines.
Added runtime proxy override support for API requests without restarting the server.
Improved fail-closed behavior when a required proxy tag has no healthy candidates.
Added masked proxy reporting so response headers and stats do not expose credentials.

Added cache support for dedicated endpoints and mega endpoints with bounded size and TTL.
Avoid fallback-response caching on dedicated endpoints so the primary engine can recover naturally.
Added retry and circuit-breaker behavior around engine execution.
Added resilience stats endpoints for easier troubleshooting in server deployments.

Updated the default shipped config.yaml to use safe direct-traffic defaults instead of local proxy test endpoints.
Fixed Docker image config discovery by setting the app working directory to the config location.
Fixed docker-compose.yaml environment keys to the current server.* config names.
Fixed explicit --config loading so a provided config file path is actually used.

Parts of the ideas and implementation direction for this release were originally explored in PR #21 by Sai-Prashanth123: #21
That PR contributed useful groundwork around production-readiness areas such as health checks, caching, CORS, structured errors, request logging, and resilience-related server improvements.
The final 0.6.0 implementation was reviewed, reworked, debugged, and adapted further in the main codebase to match OpenSERP's current project vision and configuration model.

Full Changelog: v0.5.4...v0.6.0