v0.6.0

What's Changed

• docs: add AI prompt guide for lambda-pic simulations by @xsgeng in #29
• refactor: use mpi4py for MPI communicator handling by @xsgeng in #30
• refactor: move package files to src directory by @xsgeng in #31
• feat: add PlotFields callback for field visualization by @xsgeng in #32
• refactor: add Callback base and spinner by @xsgeng in #33
• feat: periodic boundary by @xsgeng in #34
• feat: add ExtractSpeciesDensity callback for density extraction by @xsgeng in #35
• feat: add SetTemperature callback by @xsgeng in #36
• feat: PyPI version check by @xsgeng in #37

Full Changelog: v0.5.6...v0.6.0