shell: fish functions -> ~/.local/bin executables + bash/zsh ports; manage ~/.agents

- 16 cross-shell utilities converted to sh/bash chezmoi executables:
  ai c2p cp-appid extract_agents fab gdc gh-sonr-org-migrate ghg-clone
  ghn gho git-summary launch_omp_livediff_overlay lc-elir mdcp mdp pj
  (ghg-clone not named ghg: unrelated cargo binary owns that name)
- cwd/history helpers stay per-shell: yy c cd clip-last + ghg/ghn/gho
  cd-wrappers in bash/functions/ and zsh/functions/, loaded by rc files
- fish keeps only shell-state functions; converted ones now hit PATH
- cp-appid ignore gating moved to .local/bin path
- dot_agents/skills: 82 skills materialized from dotstate storage so
  dot_claude skill symlinks resolve on fresh bootstrap; dotstate
  profile/symlinks.json released .agents/skills .bashrc .zshrc

dot_config/zsh/functions/c.zsh

@@ -0,0 +1,8 @@
+# c: clear with no args, cd with one.
+c() {
+    if [ -z "${1-}" ]; then
+        clear
+    else
+        cd "$1"
+    fi
+}

dot_config/zsh/functions/cd.zsh

@@ -0,0 +1,23 @@
+# cd with zoxide fallback, else builtin cd.
+cd() {
+    local rc target
+    if [ $# -eq 0 ]; then
+        builtin cd "$HOME"
+    elif [ "$1" = - ]; then
+        builtin cd -
+    elif builtin cd "$1" 2>/dev/null; then
+        : # exact path resolved, nothing else to do
+    elif command -v zoxide >/dev/null 2>&1; then
+        target=$(zoxide query -- "$1" 2>/dev/null)
+        if [ -n "$target" ]; then
+            builtin cd "$target"
+        else
+            builtin cd "$1" # let builtin cd surface the real error
+        fi
+    else
+        builtin cd "$1"
+    fi
+    rc=$?
+    command -v zoxide >/dev/null 2>&1 && zoxide add "$PWD" 2>/dev/null
+    return $rc
+}

dot_config/zsh/functions/clip-last.zsh

@@ -0,0 +1,29 @@
+# Re-run last command, copy output to clipboard.
+# History-offset handling: some line editors add the current command to
+# history before execution, some after — detect instead of assuming.
+clip-last() {
+    local last copy
+    last=$(fc -ln -1 -1 2>/dev/null)
+    last=${last#"${last%%[![:space:]]*}"} # trim leading whitespace
+    case $last in
+        clip-last*)
+            last=$(fc -ln -2 -2 2>/dev/null)
+            last=${last#"${last%%[![:space:]]*}"}
+            ;;
+    esac
+    if [ -z "$last" ]; then
+        echo "clip-last: no previous command in history" >&2
+        return 1
+    fi
+    if command -v wl-copy >/dev/null 2>&1; then
+        copy=wl-copy
+    elif command -v pbcopy >/dev/null 2>&1; then
+        copy=pbcopy
+    else
+        echo "clip-last: no clipboard tool (wl-copy/pbcopy) found" >&2
+        return 1
+    fi
+    eval "$last" | "$copy"
+    command -v notify-send >/dev/null 2>&1 \
+        && notify-send -a shell "Clipboard" "Command output copied to clipboard"
+}

dot_config/zsh/functions/ghg.zsh

@@ -0,0 +1,8 @@
+# ghq get + cd; clone/path logic lives in ~/.local/bin/ghg-clone.
+# (helper is not named ghg: an unrelated cargo binary owns that name)
+ghg() {
+    local dir
+    dir=$(ghg-clone "$@") || return
+    cd "$dir" || return
+    clear && onefetch
+}

dot_config/zsh/functions/ghn.zsh

@@ -0,0 +1,6 @@
+# Create a repo (prad.codes/github.com) + cd; logic lives in ~/.local/bin/ghn.
+ghn() {
+    local dir
+    dir=$(command ghn "$@") || return
+    cd "$dir" || return
+}

dot_config/zsh/functions/gho.zsh

@@ -0,0 +1,10 @@
+# Pick a ghq repo / Obsidian vault + cd; picker lives in ~/.local/bin/gho.
+gho() {
+    local dir
+    dir=$(command gho) || return
+    cd "$dir" || return
+    clear
+    if [ -d .git ]; then
+        onefetch
+    fi
+}

dot_config/zsh/functions/yy.zsh

@@ -0,0 +1,11 @@
+# yazi wrapper: cd to the directory yazi was left in on exit.
+yy() {
+    local tmp cwd
+    tmp=$(mktemp -t "yazi-cwd.XXXXXX")
+    command yazi "$@" --cwd-file="$tmp"
+    cwd=$(cat -- "$tmp" 2>/dev/null)
+    if [ -n "$cwd" ] && [ "$cwd" != "$PWD" ] && [ -d "$cwd" ]; then
+        builtin cd -- "$cwd"
+    fi
+    rm -f -- "$tmp"
+}