v1.4.3

Full Changelog: v1.1.15...v1.4.3
feat: compile per-class hydrators/serializers, warmable cache, lazy collections

Performance refactor: from() and toArray() now execute a specialized
closure generated per data class (plain properties become inline array
reads; casts, enums, nested DTOs, collections, and pipes delegate to the
existing runtime via captured metadata — behavior is unchanged).
Steady-state throughput: hydration ~2.6x, serialization ~2.2x over the
interpreted path.

• Add HydratorCompiler and SerializerCompiler (eval once per class per
  process, in-memory registries, flush hooks); remove the interpreted
  Hydrator; extract ValueNormalizer for compiled serializers
• Precompute ParameterMeta::$isPlain so hot paths skip ValueCaster;
  inline the is_array() input check; use it in with() overrides too
• Cache format v2: .meta.php files now carry the compiled hydrator and
  serializer alongside the metadata — a warmed FPM worker pays neither
  reflection nor eval (opcache serves the whole file); legacy v1 files
  still load
• Add vendor/bin/sdo-warm + Support\CacheWarmer: scans sources (PSR-4
  dirs from composer.json by default) for concrete BaseData subclasses
  and pre-builds the cache on deploy; fails fast on invalid DTO
  definitions, reports non-exportable classes as skipped
• Add BaseData::lazyCollection() for streaming large iterables with a
  flat memory profile (~0.26 MB peak for 50k rows vs ~13 MB materialized)
• Docs: compiled hot path, pre-warming guide, streaming collections,
  README performance section

245 tests, 100% coverage.