docs: add comprehensive documentation for AI agents, chezmoi workflow, shell setup, desktop configuration, terminal multiplexers, and developer tools

docs/shell/meta.ts

@@ -0,0 +1,7 @@
+import { defineMeta } from "blume";
+
+export default defineMeta({
+  title: "Shell",
+  icon: "terminal",
+  pages: ["index", "fish", "bash-zsh", "aliases", "scripts", "starship", "atuin"],
+});