feat: add battery-watch daemon and notification urgency support

- new battery-watch daemon: warnt bei 25% und 15% per dunst-Notification
- notify-waybar.sh schreibt jetzt auch Urgency-Level in /tmp
- notif-status.sh: neues waybar-Skript mit urgency-CSS-Klasse
- hyprland.conf: battery-watch als exec-once, clipboard-bind entfernt
- config.jsonc: Brave-Icon hinzugefügt, Battery-Schwellen auf 25/15 korrigiert
- generate.py: Font Awesome Brands ergänzt, transition:none für critical-blink
- reload.sh: waybar-Start korrigiert (disown als eigene Zeile)
- install.sh: startet dunst und battery-watch nach Theme-Load neu

config/waybar/config.jsonc

@@ -29,6 +29,7 @@
         "format-window-separator": " ",
         "window-rewrite-default": "",
         "window-rewrite": {
+            "class<brave-browser>":      "",
             "class<kitty>":              "",
             "class<foot>":               "",
             "class<Alacritty>":          "",
@@ -94,8 +95,8 @@
         "format-plugged": "\uf1e6  {capacity}%",
         "format-icons": ["\uf244", "\uf243", "\uf242", "\uf241", "\uf240"],
         "states": {
-            "warning": 85,
-            "critical": 80
+            "warning": 25,
+            "critical": 15
         },
         "tooltip-format": "{timeTo}, {power:.1f}W"
     },

config/waybar/notif-status.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+if [ ! -f /tmp/waybar-notif ]; then
+    printf '{"text":"","class":""}\n'
+    exit 0
+fi
+text=$(cat /tmp/waybar-notif)
+urgency=$(cat /tmp/waybar-notif-urgency 2>/dev/null | tr '[:upper:]' '[:lower:]')
+urgency="${urgency:-normal}"
+icon=$''
+# Escape backslashes and quotes in text to keep JSON valid
+text=$(printf '%s' "$text" | sed 's/\\/\\\\/g; s/"/\\"/g')
+printf '{"text":"%s  %s","class":"%s"}\n' "$icon" "$text" "$urgency"