bump: update package version to 0.2.2 (#36)

reorganize the project structure (#33)

* reorganize the project structure

* refactor: centralize parallel processing configuration and error handling in the OCR pipeline

* refactor: improve total processed count and average inference time calculation in StatsManager

refactor: enhance error handling and fallback strategies in processin…

…g stages

fix: update nalgebra dependency version to 0.34 (#20)

fix: update categories in Cargo.toml from "deep-learning" to "science" (

#13)