feat(chezmoi): add gating skeleton — config template, templated ignore, packages manifest

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

.chezmoidata/packages.yaml

@@ -0,0 +1,93 @@
+packages:
+  arch:
+    pacman:
+      # shell + editors
+      - fish
+      - neovim
+      - tmux
+      - micro
+      # terminal
+      - kitty
+      # tui tools
+      - yazi
+      - lazygit
+      - lazydocker
+      - btop
+      - fastfetch
+      # vcs + forge
+      - git
+      - github-cli
+      - git-delta
+      - diffnav
+      # search / files
+      - fzf
+      - fd
+      - ripgrep
+      - zoxide
+      - eza
+      - bat
+      - jq
+      - duf
+      # media / preview (yazi deps)
+      - ffmpeg
+      - ffmpegthumbnailer
+      - poppler
+      - resvg
+      - imagemagick
+      - 7zip
+      - unzip
+      # misc cli
+      - gum
+      - glow
+      - atuin
+      - wget
+    aur:
+      - oh-my-posh-bin
+    desktop:
+      # linux desktop layer (role desktop|laptop)
+      pacman:
+        - niri
+        - xdg-user-dirs
+      aur:
+        - noctalia-shell
+  darwin:
+    brew:
+      - fish
+      - neovim
+      - tmux
+      - yazi
+      - lazygit
+      - lazydocker
+      - btop
+      - fastfetch
+      - git
+      - gh
+      - git-delta
+      - fzf
+      - fd
+      - ripgrep
+      - zoxide
+      - eza
+      - bat
+      - jq
+      - duf
+      - ffmpeg
+      - ffmpegthumbnailer
+      - poppler
+      - resvg
+      - imagemagick
+      - sevenzip
+      - gum
+      - glow
+      - atuin
+      - oh-my-posh
+    cask:
+      - kitty
+  shared:
+    gh_extensions:
+      - davidraviv/gh-clean-branches
+      - prdlk/gh-commit
+      - dlvhdr/gh-dash
+      - meiji163/gh-notify
+    go: []
+    cargo: []