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.

agent/BACKLOG.md

@@ -74,22 +74,19 @@ high-ROI, etc.) live in the journal + ROADMAP — not here.*
 
 ### Product / day-2
 
-- **Battery charge-limit — make the toggle instant** `[blocked:hw]`
-  Menu/CC write `settings.power.batteryChargeLimit` but need a rebuild.
-  Instant path: udev group-writable `charge_control_end_threshold` on
-  system batteries + live `echo` alongside state persist. Decide first
-  whether a local user may set the charge cap. Cost: medium; hw confirm.
+_(Battery charge-limit instant → shipped 2026-07-10: udev GROUP=users +
+  menu live sysfs + oneshot reads live theme-state; V3 confirm on laptop.)_
 
 _(Portal/Flatpak IR camera → **#71** docs (a); (b)/(c) still need T14s.)_
 
 _(Post-install hardware hints residual → **#73**.)_
 
-- **Look & Feel submenu** (ROADMAP optional) — night-light, wallpaper
-  cycle, blur/gaps with Theme; root stays six entries. Product call.
+_(Look & Feel submenu → already shipped (Theme / wallpaper / night light);
+  2026-07-10: Reset wallpaper (auto) row; root stays six.)_
 
-- **NVIDIA first-class options** `[big]` `[blocked:hw]` — thin
-  `nomarchy.hardware.nvidia.*` only with hybrid maintainer + queue.
-  Prefer shipped #59 commented guidance until then.
+- **NVIDIA first-class options** — **deferred past v1** (Bernardo
+  2026-07-10). Keep #59 commented install guidance; no
+  `nomarchy.hardware.nvidia.*` until a hybrid maintainer + queue.
 
 ### Installer / template
 
@@ -109,17 +106,14 @@ _(summer-day/night pair polish + status CSS + preview recapture →
   shipped 2026-07-10: JSON SoT, status states, theme-shot previews for
   executive-slate + neon-glass.)_
 
-- **Identity optional taste retunes** — white / lumon / hackerman /
-  matte-black / miasma hierarchy or status L-steps only (no traffic-light
-  forced on identity themes). Product call per theme.
-
-- **Optional identity `btop.theme`** for identity whole-swaps still on
-  generated btop. Cost: assets; V3.
+_(Identity taste retunes + hand `btop.theme` for white/vantablack/lumon/
+  hackerman/matte-black/miasma/neon-glass/boreal/executive-slate →
+  shipped 2026-07-10.)_
 
 ### v1.0 pointer
 
-See **VISION**. Remaining PROPOSED: charge-limit instant, Look & Feel,
-NVIDIA first-class, identity taste / optional btop themes.
+See **VISION**. Open PROPOSED: NVIDIA wrappers deferred past v1; IR
+portal (b)/(c) hardware.
 
 
 ## Decisions `[human]`