Satur8 v0.1.1
v0.1.1 is a packaging-readiness patch release.\n\n- Adds a scripted Linux x86_64 release tarball builder.\n- Updates workspace crate versions and GUI version display to v0.1.1.\n- Completes Arch PKGBUILD metadata for the currently tagged v0.1.0 source archive and adds generated .SRCINFO.\n- Documents Arch install flow and refreshes roadmap/plan status.\n- Publishes the v0.1.1 Linux x86_64 tarball and checksum.