ext-zealphp pin -> v0.3.46.

- App::go() + automatic request-context inheritance for child coroutines (ext#42)
- Fatal->500 guard: a worker-killing fatal answers in-flight connections with HTTP 500 instead of HTTP 000 (#338)
- coroutine-legacy correctness batch via ext 0.3.41-0.3.46: per-request-state claim-set gate (ext#37), $_SERVER post-yield integrity (ext#40/#41), child superglobal lane (ext#42), define() constant-leak fix (0.3.44), per-coroutine tz/mb/libxml isolation (0.3.45), mysqlnd vio orig_path allocator shim that eliminates the WordPress teardown zend_mm_heap corruption (ext#44)
- Cold-autoload duplicate-CE crash fixed via master-side request-path preload
- Include-boundary $g mutation loss (ext#43), Apache $g superglobal bridge (#346), ZealAPI null->404 parity (#347)