Initial import: chezmoi source for CachyOS + Umbriel + Noctalia

Imported from prdlk/dotfiles master (efdd827). Drops the niri, Hyprland/Omarchy,
macOS, and Blume docs-site layers; docs/ is plain Markdown.

dot_config/hunk/config.toml

@@ -0,0 +1,12 @@
+theme = "auto" # any built-in theme id, auto, or custom
+mode = "auto"        # auto, split, stack
+vcs = "git"          # git, jj, sl
+watch = false
+exclude_untracked = true
+line_numbers = true
+tab_width = 4       # tab stops, 1-16
+wrap_lines = false
+menu_bar = true
+agent_notes = true
+prompt_save_view_preferences = false
+transparent_background = true

dot_config/hunk/private_state.json

@@ -0,0 +1,4 @@
+{
+  "version": 1,
+  "lastSeenCliVersion": "0.18.2"
+}