feat(github): add auto-conventional-commit hook with opencode integration

- Add prepare-commit-msg git hook that generates conventional commit messages
- Modularize fish configuration with separate conf.d files
- Convert configuration files from .text to .source format for structured data
- Add sops-nix SOPS configuration with explicit secret definitions
- Upgrade age identity to single key file management approach
- Add system activation script for age key management
- Generate .sops.yaml for SOPS creation rules
- Restructure README.md with improved table and cleaner formatting
- Refactor config files to use pkgs.formats.json/toml generators
- Implement YAML format for ashell and walker service configurations
- Update SSH config source to use sops secrets
- Convert zed and other config files to use structured .source format

home/editors/zed/default.nix

@@ -5,7 +5,8 @@
 }: let
   configFile = "zed/settings.json";
   languageConfig = import ./_settings.nix {inherit pkgs lib;};
-  settingsJSON = builtins.toJSON ({
+  toJSON = (pkgs.formats.json {}).generate;
+  settingsJSON = toJSON "settings.json" ({
       node = {
         path = "${pkgs.nodejs}/bin/node";
         npm_path = "${pkgs.nodejs}/bin/npm";
@@ -145,7 +146,7 @@ in {
     zedWithLSP
   ];
   xdg.configFile."${configFile}" = {
-    text = settingsJSON;
+    source = settingsJSON;
     mutable = true;
   };
 }