* refactor(sandbox): remove socat proxy and fix chromium keyring deadlock
* fix(sandbox): address review feedback by reinstating cdp isolation and stability flags
* fix(sandbox): increase entrypoint cdp timeout to 20s to honor autoStartTimeoutMs
* fix(sandbox): align implementation with PR description (keyring bypass, fail-fast, watchdog)
* fix
* fix(sandbox): remove bash CDP watchdog to eliminate dual-timeout race
* fix(sandbox): apply final fail-fast and lifecycle bindings
* fix(sandbox): restore noVNC and CDP port offset
* fix(sandbox): add max-time to curl to prevent HTTP hang
* fix(sandbox): align timeout with host and restore env flags
* fix(sandbox): pass auto-start timeout to container and restore wait -n
* fix(sandbox): update hash input type to include autoStartTimeoutMs
* fix(sandbox): implement production-grade lifecycle and timeout management
- Add strict integer validation for port and timeout environment variables
- Implement robust two-stage trap cleanup (SIGTERM with SIGKILL fallback) to prevent zombie processes
- Refactor CDP readiness probe to use absolute millisecond-precision deadlines
- Add early fail-fast detection if Chromium crashes during the startup phase
- Track all daemon PIDs explicitly for reliable teardown via wait -n
* fix(sandbox): allow renderer process limit to be 0 for chromium default
* fix(sandbox): add autoStartTimeoutMs to SandboxBrowserHashInput type
* test(sandbox): cover browser timeout cleanup
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Co-authored-by: Ayaan Zaidi <hi@obviy.us>
