refactor: drop in-repo dotfiles/, move stow tooling to the dotfiles repo

Since the installer clones DOTFILES_REPO into ~/.dotfiles and stows from there, the in-repo dotfiles/ tree was dead weight. Nothing reads it at install time. I removed it (831 files) now that both machines are migrated.

The Makefile's stow / restow / reset / unstow / import targets and the dotfile-script unit suites moved to the dotfiles repo. They sit alongside the scripts they manage and run standalone (cd ~/.dotfiles && make ...). This Makefile keeps the VM-integration targets and the installer-helper suite (safe-rm-rf).

I updated CLAUDE.md and README.md so stow operations run from ~/.dotfiles, and the dotfile-management, theme, and unit-test sections point at the standalone repo. The README was already describing the old in-repo model from before the installer switched to cloning. This brings it in line.

1 files changed, 0 insertions, 47 deletions

diff --git a/dotfiles/common/.zshrc.d/arch-downgrade.sh b/dotfiles/common/.zshrc.d/arch-downgrade.sh
deleted file mode 100644
index f1d01a7..0000000
--- a/dotfiles/common/.zshrc.d/arch-downgrade.sh
+++ /dev/null
@@ -1,47 +0,0 @@
-# arch-downgrade.sh
-# Craig Jennings <c@cjennings.net>
-# Downgrade Arch packages with fzf (zsh only)
-
-# Config:
-#   export DG_HELPER=pacman   # or yay, paru, etc.
-#   export DG_FZF_OPTS="..."  # optional extra fzf flags
-
-dg() {
-    emulate -L zsh
-    set -u
-    set -o pipefail
-
-    local helper="${DG_HELPER:-pacman}"
-
-    # Check dependencies
-    for cmd in "$helper" fzf sudo downgrade awk sort; do
-        if ! command -v "${cmd%% *}" >/dev/null 2>&1; then
-            print -u2 -- "Missing dependency: $cmd"
-            return 1
-        fi
-    done
-
-    # List explicitly installed packages
-    local selection
-    selection="$(
-        "$helper" -Qe 2>/dev/null \
-          | fzf --no-multi \
-                --prompt="Pick package to downgrade > " \
-                --height=80% \
-                --reverse \
-                --delimiter=' ' \
-                --preview-window=right:60%:wrap \
-                --preview "$helper -Qi {1} 2>/dev/null || $helper -Si {1}" \
-                ${DG_FZF_OPTS:-}
-    )"
-
-    [[ $? -ne 0 || -z "$selection" ]] && return 0
-
-    local pkg
-    pkg="$(print -r -- "$selection" | head -n1 | awk '{print $1}')"
-
-    if ! sudo downgrade "$pkg"; then
-        print -u2 -- "Downgrade failed for $pkg"
-        return 1
-    fi
-}