Release PerlOnJava 5.44.1

[fglock]

Summary

• prepare version 5.44.1, promote the changelog, and document the reusable release workflow
• preserve async warning policy across queued resumes and align interpreter await diagnostics
• serialize lazy compilation during thread snapshots and retain PR 1100's bundled-IO CPAN overlay fix
• fix Catalyst routing, encoding, recursion, lifecycle, closure, and bundled Moose compatibility regressions
• align scalar-context sort with standard Perl on both backends

Validation completed

• rebased onto origin/master at c7b1a560d
• make — all unit shards, Joni, packaging, and shadow JAR pass
• make test-bundled-modules — all bundled-module tests pass
• Ubuntu and Windows CI — pass
• Future::AsyncAwait 0.71 — 52 files and 225 tests pass on both backends
• new/updated release regressions — 69 assertions pass on both backends and encode standard Perl behavior
• Catalyst fixed-file gate — 12 files and 568 tests pass
• Catalyst uploads — 105/105 pass post-rebase in 44.5 seconds
• Catalyst Netty route smoke — routing, uploads, UTF-8, errors, redirects, headers/cookies, logging, and PSGI pass
• examples — core, HTTP, PAGI, Plack, ExifTool, Catalyst Netty, thread examples, and JAPH pass
• bounded regex stress — 152/152 on each backend
• repeated DBI thread and lazy-snapshot stress — 10/10 on each backend

Documented Catalyst boundaries

• single-process Catalyst applications are supported through Plack::Handler::Netty; fork/prefork and fork-based reload patterns remain unsupported
• one upstream test requires undeclared Class::Accessor and passes when that fixture is installed
• one gzip charset assertion reflects Catalyst 5.90132 incompatibility with modern HTTP::Headers, reproduced with system Perl

All release-blocking Catalyst regressions found during the 200-file upstream scan are fixed and covered. This PR is ready for review and UAT; merge, tag, and release remain gated on explicit approval.