MESA 5.6.0 — synthetic test data packages for sensitivity mapping

Description: Four synthetic data packages for testing MESA 5.6.0, the open-source tool for mapping environmental sensitivity. Each ZIP is one MESA project — config.ini plus input/ data — restored via Manage MESA data → Restore data. The packages contain inputs only, no computed results: the recipient runs Process and gets this version's values. All geometry in these packages is invented. The layer names sound real and the shapes sit in real parts of the world, but they describe nothing that exists there. They exist to exercise the software end-to-end — the asset layers deliberately overlap, which is what MESA's segmentation and classification need — and must never be cited as evidence about any place. mesa_5.6.0_demodata_guide.md covers import, geocodes and parameters. Each package also carries its own docs/readme_demodata.txt with measured asset overlap, which MESA offers at the end of a restore.