feat: centralize theme palette + add waybar bluetooth module

Theme centralization:
- theme/colors.json is now the single source of truth for the palette.
- New theme/generate-theme.py renders, at install time, the three derived
  artifacts into ~/.config: colors.css (waybar/wofi @import), mako config,
  and hyprlock-colors.conf (hyprlang $tn_* variables).
- theme/colors.css removed from the repo (now generated); install.sh calls
  the generator instead of the old inline mako snippet.
- hyprlock.conf sources the generated color file and uses $tn_* variables
  instead of hardcoded rgba() values.
- Generator covered by theme/test_generate_theme.py.

Bluetooth:
- Added waybar built-in bluetooth module (config.jsonc + style.css), with
  bluez/bluez-utils in packages.txt.

Includes design spec and implementation plan under docs/superpowers/.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

install.sh

@@ -26,20 +26,10 @@ ln -sf "$(pwd)/niri/config.kdl" ~/.config/niri/config.kdl
 ln -sf "$(pwd)/waybar/config.jsonc" ~/.config/waybar/config.jsonc
 ln -sf "$(pwd)/waybar/style.css" ~/.config/waybar/style.css
 mkdir -p ~/.config/theme
-ln -sf "$(pwd)/theme/colors.css" ~/.config/theme/colors.css
+echo "==> Generating theme artifacts from colors.json"
+python3 "$(pwd)/theme/generate-theme.py"
 ln -sf "$(pwd)/wofi/config" ~/.config/wofi/config
 ln -sf "$(pwd)/wofi/style.css" ~/.config/wofi/style.css
-python3 - <<'PYEOF'
-import json, os
-c = json.load(open("theme/colors.json"))
-config = f"""background-color={c['background']}
-text-color={c['foreground']}
-border-size=2
-border-color={c['blue']}
-default-timeout=4000
-"""
-open(os.path.expanduser("~/.config/mako/config"), "w").write(config)
-PYEOF
 mkdir -p ~/.config/hypr
 ln -sf "$(pwd)/hyprlock/hyprlock.conf" ~/.config/hypr/hyprlock.conf
 ln -sf "$(pwd)/fish/config.fish" ~/.config/fish/config.fish