chore: update dotfiles with new tool configs and pi settings

- Add configs for goose, herdr, ostt, fabric, zero, gnupg
- Restructure pi models.json (dupont, obelix, bianca, cloudflare)
- Update pi settings with new provider lineup, subagent overrides
- Add pi permission system, search config
- Add desktop entries (RampClient, terminal, tmux)
- Add tmux-open script, rename battery.sh -> battery
- Refactor fish config (simplify conditionals, fix nvim aliases)
- Switch worktrunk commit command from opencode to pi
- Update mise.toml with new tool symlinks
- Fix mise auth.json path reference

script/battery

@@ -0,0 +1,30 @@
+#!/bin/sh
+
+if [[ "$(uname)" == "Darwin" ]]; then
+    # macOS
+    BATTERY=$(pmset -g batt | grep -Eo '[0-9]+%' | head -1 | tr -d '%')
+    CHARGING=$(pmset -g batt | grep -c 'AC Power')
+else
+    BATTERY=$(cat /sys/class/power_supply/BAT0/capacity 2>/dev/null || upower -i $(upower -e | grep BAT) | grep percentage | awk '{print $2}' | tr -d '%')
+    CHARGING=$(cat /sys/class/power_supply/BAT0/status 2>/dev/null | grep -c 'Charging')
+fi
+
+if [[ -z "$BATTERY" ]]; then
+    echo "🔋 N/A"
+    exit 0
+fi
+
+# Choose icon based on level
+if [[ "$CHARGING" -gt 0 ]]; then
+    ICON="⚡"
+elif [[ "$BATTERY" -ge 80 ]]; then
+    ICON="🔋"
+elif [[ "$BATTERY" -ge 40 ]]; then
+    ICON="🔋"
+elif [[ "$BATTERY" -ge 20 ]]; then
+    ICON="🪫"
+else
+    ICON="🪫"
+fi
+
+echo "$ICON ${BATTERY}%"