feat(claude): add statusline-command.sh to chezmoi and update settings

dot_claude/settings.json.tmpl

@@ -54,7 +54,7 @@
 {{- end }}
   "statusLine": {
     "type": "command",
-    "command": "pnpx ccusage statusline",
+    "command": "bash {{ .chezmoi.homeDir }}/.claude/statusline-command.sh",
     "padding": 0
   },
   "enabledPlugins": {

dot_claude/statusline-command.sh

@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+# Claude Code statusLine command
+# Displays: directory | branch | ccusage output
+
+input=$(cat)
+
+# --- Directory (basename of cwd) ---
+cwd=$(echo "$input" | jq -r '.cwd // .workspace.current_dir // ""')
+dir=$(basename "${cwd:-$PWD}")
+
+# --- Git branch ---
+branch=""
+if [[ -n "$cwd" ]] && git -C "$cwd" rev-parse --git-dir >/dev/null 2>&1; then
+  branch=$(git -C "$cwd" symbolic-ref --short HEAD 2>/dev/null \
+           || git -C "$cwd" rev-parse --short HEAD 2>/dev/null)
+fi
+
+# --- Color setup ---
+RESET=$'\e[0m'; RED=$'\e[31m'; YELLOW=$'\e[33m'; GREEN=$'\e[32m'
+
+# Context info from Claude Code JSON (accurate current window usage)
+pct=$(echo "$input" | jq -r '.context_window.used_percentage // 0')
+tokens=$(echo "$input" | jq -r '.context_window.current_usage.cache_read_input_tokens // 0')
+tokens_fmt=$(LC_ALL=en_US.UTF-8 printf "%'.0f" "$tokens")
+if   [[ $pct -ge 80 ]]; then ctx_color=$RED
+elif [[ $pct -ge 50 ]]; then ctx_color=$YELLOW
+else                          ctx_color=$GREEN
+fi
+
+# ccusage: cost/burn rate info only; strip its 🧠 section and append JSON-sourced one
+cost=$(echo "$input" | npx --yes ccusage statusline 2>/dev/null)
+cost="${cost/ | 🧠*/}"
+cost="${cost} | 🧠 ${tokens_fmt} ${ctx_color}(${pct}%)${RESET}"
+
+# --- Assemble output ---
+parts=()
+[[ -n "$dir" ]]    && parts+=("$dir")
+[[ -n "$branch" ]] && parts+=("$branch")
+[[ -n "$cost" ]]   && parts+=("$cost")
+
+printf '%s' "$(IFS=' | '; echo "${parts[*]}")"