Improve build/strategy validation and stream IO robustness

fix: autload path

Merge pull request #10 from overtrue/copilot/upgrade-symfony-console-process

Upgrade symfony/console and symfony/process to support ^8.0

Initial plan

Update PHP version to 8.4 and add 8.5 to matrix

Update README.md

Merge pull request #8 from overtrue/feature/dictionary-cache-and-compat

docs: add streaming usage examples; feat: StreamConverter for stream/file line-based conversion; test: add StreamConverter test

docs: add performance (opcache preload) and portable build notes; refactor: BuildCommand pure PHP (ZipArchive, recursive copy); refactor: public const on Strategy/Dictionary; feat: Converter supports Traversable input (API compatible)

test: add extra cases for magic call and grouped dictionaries; fix: use defined() in magic call; perf: cache raw dictionaries, pre-merge and sort by key length once; chore: require ext-mbstring

Update composer.json

feat: dictionary cache

chore: update

fix: cc