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/packages/media/rnnoise.nix

@@ -1,12 +1,13 @@
 {pkgs, ...}: let
   configFile = "pipewire/pipewire.conf.d/99-input-denoising.conf";
+  toJSON = (pkgs.formats.json {}).generate;
 in {
   users.users.someone.packages = with pkgs; [
     rnnoise
     rnnoise-plugin
   ];
 
-  xdg.configFile."${configFile}".text = builtins.toJSON {
+  xdg.configFile."${configFile}".source = toJSON "99-input-denoising.conf" {
     "context.modules" = [
       {
         "name" = "libpipewire-module-filter-chain";

home/packages/wayland/niri/_binds.nix

@@ -1,4 +1,4 @@
-{}: {
+{...}: {
   "XF86AudioPlay" = {
     _props.allow-when-locked = true;
     spawn._args = ["playerctl" "play-pause"];