quickshell: add initial bar config with per-monitor workspaces

- Vertical bar on DP-2 with rounded-square pills throughout
- Per-monitor workspace groups sorted by screen x position, with
  Nerd Font icons for named workspaces and apex-neon red active indicator
- Bar layout: datetime+weather top, workspaces centered, gamemode+media+notif+system bottom
- Popouts anchor to triggering icon (top-right for datetime/weather, bottom-right for media/notif/system)
- Lock command switched from hyprlock to swaylock
- Hyprland blur/ignore_alpha layerrules for quickshell namespace

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

dot_config/quickshell/scripts/executable_gpu.sh

@@ -0,0 +1,110 @@
+#!/usr/bin/env bash
+# AMD GPU stats for Waybar (RDNA 4 / amdgpu)
+
+set -o pipefail
+
+read_numeric_file() {
+    local path="$1"
+    local value
+    [[ -r "$path" ]] || return 1
+    value=$(<"$path")
+    [[ "$value" =~ ^[0-9]+$ ]] || return 1
+    printf '%s\n' "$value"
+}
+
+# Find AMD GPU hwmon
+GPU_HWMON=""
+for hwmon in /sys/class/hwmon/hwmon*; do
+    if [[ -f "$hwmon/name" ]] && grep -q "amdgpu" "$hwmon/name" 2>/dev/null; then
+        GPU_HWMON="$hwmon"
+        break
+    fi
+done
+
+if [[ -z "$GPU_HWMON" ]]; then
+    echo '{"text":"󰢮","class":"disconnected","tooltip":"AMD GPU not found"}'
+    exit 0
+fi
+
+GPU_DEVICE=$(readlink -f "$GPU_HWMON/device" 2>/dev/null || true)
+
+# Read GPU stats
+temp_raw=0
+for temp_sensor in temp1_input temp2_input temp3_input; do
+    if temp_candidate=$(read_numeric_file "$GPU_HWMON/$temp_sensor"); then
+        temp_raw="$temp_candidate"
+        break
+    fi
+done
+temp=$((temp_raw / 1000))
+
+# GPU usage from /sys/class/drm
+gpu_busy=0
+if [[ -n "$GPU_DEVICE" ]] && gpu_busy_candidate=$(read_numeric_file "$GPU_DEVICE/gpu_busy_percent"); then
+    gpu_busy="$gpu_busy_candidate"
+else
+    for card in /sys/class/drm/card*/device/gpu_busy_percent; do
+        if gpu_busy_candidate=$(read_numeric_file "$card"); then
+            gpu_busy="$gpu_busy_candidate"
+            break
+        fi
+    done
+fi
+
+# VRAM usage
+vram_used=0
+vram_total=0
+if [[ -n "$GPU_DEVICE" ]] && [[ -r "$GPU_DEVICE/mem_info_vram_used" ]]; then
+    vram_used_raw=$(read_numeric_file "$GPU_DEVICE/mem_info_vram_used" || echo 0)
+    vram_total_raw=$(read_numeric_file "$GPU_DEVICE/mem_info_vram_total" || echo 0)
+    vram_used=$((vram_used_raw / 1024 / 1024))
+    vram_total=$((vram_total_raw / 1024 / 1024))
+else
+    for card in /sys/class/drm/card*/device; do
+        if [[ -r "$card/mem_info_vram_used" ]]; then
+            vram_used_raw=$(read_numeric_file "$card/mem_info_vram_used" || echo 0)
+            vram_total_raw=$(read_numeric_file "$card/mem_info_vram_total" || echo 0)
+            vram_used=$((vram_used_raw / 1024 / 1024))
+            vram_total=$((vram_total_raw / 1024 / 1024))
+            break
+        fi
+    done
+fi
+
+# Power usage (watts)
+power_raw=0
+for power_sensor in power1_average power1_input; do
+    if power_candidate=$(read_numeric_file "$GPU_HWMON/$power_sensor"); then
+        power_raw="$power_candidate"
+        break
+    fi
+done
+power=$((power_raw / 1000000))
+
+# Determine class based on temperature
+if [[ $temp -ge 90 ]]; then
+    class="critical"
+elif [[ $temp -ge 75 ]]; then
+    class="warning"
+elif [[ $gpu_busy -ge 90 ]]; then
+    class="high"
+else
+    class="normal"
+fi
+
+# Format text
+text="󰢮 ${temp}°C"
+
+# Build tooltip with actual newlines
+NL=$'\n'
+tooltip="AMD GPU${NL}Usage: ${gpu_busy}%${NL}Temp: ${temp}°C${NL}Power: ${power}W"
+if [[ $vram_total -gt 0 ]]; then
+    vram_pct=$((vram_used * 100 / vram_total))
+    tooltip="${tooltip}${NL}VRAM: ${vram_used}/${vram_total} MB (${vram_pct}%)"
+fi
+
+jq -nc \
+    --arg text "$text" \
+    --arg class "$class" \
+    --arg tooltip "$tooltip" \
+    '{text: $text, class: $class, tooltip: $tooltip}'