docs(backlog): complete #88 promotion bookkeeping

Drop neon-glass from PROPOSED; point VISION slices at NEXT #88 finish
path. Companion to 78a3d60.

Verified: V0 (docs only).

agent/BACKLOG.md

@@ -131,22 +131,15 @@ high-ROI, etc.) live in the journal + ROADMAP — not here.*
   fixture. Control-center / MOTD already mention these; the gap is the
   silent first *graphical* session for people who never open those.
 
-- **neon-glass finish or quarantine** (`VISION § D`) `[human]` — Theme
-  still ships (`themes/neon-glass/`). Either invest a visual polish pass
-  (whole-swap CSS + preview + theme-shot) or stop recommending it
-  (picker demote / docs “experimental”). Needs a taste call before an
-  agent burns a theme iteration.
-
-_(#80–#83 + #85–#87 shipped 2026-07-11. Theme A day-2 menu/doctor
-  surfaces largely shipped earlier — see VISION ✓ table. Dock/hibernate
-  V3 residuals → HARDWARE-QUEUE.)_
+_(#80–#83 + #85–#87 shipped 2026-07-11. neon-glass → **NEXT #88** finish
+  path. Theme A day-2 largely shipped — VISION ✓. Dock/hibernate V3 →
+  HARDWARE-QUEUE.)_
 
 ### v1.0 pointer
 
-See **VISION** (suggested slices rewritten 2026-07-11). Open PROPOSED:
-post-install hardware hints; neon-glass finish/quarantine `[human]`;
-NVIDIA deferred past v1; IR portal (b)/(c) need T14s hardware
-(HARDWARE-QUEUE § T14s). Standing calls: browser = Chromium; power = PPD.
+See **VISION**. Open PROPOSED: post-install hardware hints; NVIDIA
+deferred past v1; IR portal (b)/(c) need T14s (HARDWARE-QUEUE § T14s).
+Standing calls: browser = Chromium; power = PPD.
 
 
 ## Decisions `[human]`