feat: live charge limit, identity retunes, btop assets (product calls)

- Charge limit: udev GROUP=users on threshold; menu applies sysfs live
  and persists state; boot/AC oneshot prefers live theme-state.json.
- Look & Feel: Reset wallpaper (auto); Theme/next/night light already there.
- NVIDIA first-class wrappers deferred past v1 (keep #59 comments).
- Identity taste: white, lumon, hackerman, matte-black, miasma.
- Hand btop.theme for identity + boreal/executive-slate/neon-glass.

Verified: V0 contrast; V1 battery-charge-limit VM. V3 live sysfs on laptop.

themes/hackerman/btop.theme

@@ -1,70 +1,25 @@
-# Main background, empty for terminal default, need to be empty if you want transparent background
 theme[main_bg]="#0B0C16"
-
-# Main text color
 theme[main_fg]="#ddf7ff"
-
-# Title color for boxes
-theme[title]="#86a7df"
-
-# Highlight color for keyboard shortcuts
-theme[hi_fg]="#7cf8f7"
-
-# Background color of selected item in processes box
+theme[title]="#ddf7ff"
+theme[hi_fg]="#82FB9C"
 theme[selected_bg]="#6a6e95"
-
-# Foreground color of selected item in processes box
 theme[selected_fg]="#ddf7ff"
-
-# Color of inactive/disabled text
 theme[inactive_fg]="#6a6e95"
-
-# Misc colors for processes box including mini cpu graphs, details memory graph and details status text
+theme[graph_text]="#85E1FB"
+theme[meter_bg]="#1a1c2e"
 theme[proc_misc]="#86a7df"
-
-# Box outline and divider line color
-theme[cpu_box]="#4fe88f"
+theme[cpu_box]="#82FB9C"
 theme[mem_box]="#4fe88f"
-theme[net_box]="#4fe88f"
-theme[proc_box]="#4fe88f"
+theme[net_box]="#86a7df"
+theme[proc_box]="#1a1c2e"
 theme[div_line]="#6a6e95"
-
-# Gradient for all meters and graphs
-theme[temp_start]="#7cf8f7"
-theme[temp_mid]="#829dd4"
-theme[temp_end]="#4fe88f"
-
-
-theme[cpu_start]="#7cf8f7"
-theme[cpu_mid]="#829dd4"
-theme[cpu_end]="#4fe88f"
-
-
-theme[free_start]="#829dd4"
-theme[free_mid]="#50f7d4"
-theme[free_end]="#50f7d4"
-
-
-theme[cached_start]="#50f7d4"
-theme[cached_mid]="#50f7d4"
-theme[cached_end]="#50f7d4"
-
-
-theme[available_start]="#7cf8f7"
-theme[available_mid]="#7cf8f7"
-theme[available_end]="#7cf8f7"
-
-
-theme[used_start]="#4fe88f"
-theme[used_mid]="#4fe88f"
-theme[used_end]="#4fe88f"
-
-
-theme[download_start]="#50f7d4"
-theme[download_mid]="#7cf8f7"
-theme[download_end]="#829dd4"
-
-
-theme[upload_start]="#50f7d4"
-theme[upload_mid]="#7cf8f7"
-theme[upload_end]="#829dd4"
+theme[temp_start]="#4fe88f"
+theme[temp_mid]="#e8d44f"
+theme[temp_end]="#ff5a7a"
+theme[cpu_start]="#4fe88f"
+theme[cpu_mid]="#e8d44f"
+theme[cpu_end]="#ff5a7a"
+theme[free_start]="#4fe88f"
+theme[used_start]="#e8d44f"
+theme[download_start]="#82FB9C"
+theme[upload_start]="#86a7df"