feat: add semantic admin palette

src/components/theme-vars.test.ts

@@ -18,6 +18,11 @@ describe("themePaletteCss", () => {
       "--admin-sidebar-text-readable", "--color-success-text-readable",
       "--color-success-foreground-readable", "--color-warning-text-readable",
       "--color-error-text-readable", "--color-info-text-readable",
+      "--admin-canvas", "--admin-surface", "--admin-surface-elevated",
+      "--admin-text", "--admin-text-muted", "--admin-border",
+      "--admin-accent", "--admin-accent-foreground", "--admin-overlay",
+      "--admin-focus-ring", "--admin-success", "--admin-warning",
+      "--admin-error", "--admin-info",
     ]) expect(css).toContain(variable);
   });
 });