build: add spec and gear

.gear/rules

+spec: .gear/ximper-shell-panel.spec
+tar: .
+tar: vendor name=@name@-development-@version@ base=vendor

.gear/ximper-shell-panel.spec

+Name: ximper-shell-panel
+Version: 0.1.0
+Release: eter0
+License: GPL-3.0
+
+Summary: Waybar panel runtime for Ximper Shell
+
+Group: Graphical desktop/Other
+
+Url: https://gitlab.eterfund.ru/ximperlinux/ximper-shell-panel
+Vcs: https://gitlab.eterfund.ru/ximperlinux/ximper-shell-panel.git
+
+Source: %name-%version.tar
+Source1: %name-development-%version.tar
+
+BuildRequires(pre): rpm-macros-meson rpm-build-xdg
+
+BuildRequires: rpm-build-golang
+BuildRequires: meson
+
+Requires: waybar
+
+%description
+Runtime component for the Ximper Shell Waybar panel.
+
+%prep
+%setup -a1
+
+%build
+%meson
+%meson_build
+
+%install
+%meson_install
+
+%files
+%_bindir/%name
+
+%dir %_xdgconfigdir/ximper-shell/panel
+%config %_xdgconfigdir/ximper-shell/panel/*
+
+%changelog
+* Thu Jun 18 2026 Kirill Unitsaev <fiersik@altlinux.org> 0.1.0-eter0
+- Initial build