fix(themes): drop stub waybar.css whole-swaps — four themes ran an unstyled bar (item 28)

catppuccin, lumon, nord and retro-82 carried 2-14 line waybar.css
stubs from the rewrite import (f211ef0). A theme waybar.css replaces
the entire generated stylesheet, so those four shipped a raw default
Waybar: no workspace pill, cramped flush-edge right cluster, none of
the generated polish. Deleting the stubs falls them back to the
generated bar in their own palette; their full ~110-line rofi.rasi
designs are untouched. Authored whole-swap bars remain only
summer-day/night.

V2: lumon captured before/after — stub bar was default-styled,
re-capture renders the generated styling. flake check green.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

agent/BACKLOG.md

@@ -109,7 +109,16 @@ review:
     placeholder dim (#2d353b99) renders. Note: summer-night's cream
     bar/menu on dark backdrop is the authored inverted design (fg as
     surface), not a rendering bug.
-  - An identity theme (lumon/retro-82) vibe capture still pending;
+  - ✓ Identity-theme capture + stub purge (iteration #45): the lumon
+    capture exposed that catppuccin/lumon/nord/retro-82 shipped stub
+    waybar.css files (2–14 lines, from the f211ef0 rewrite import) —
+    and a theme waybar.css whole-swaps the ENTIRE generated
+    stylesheet, so those four ran an unstyled default bar. Stubs
+    deleted; re-capture confirms lumon falls back to the generated
+    styled bar (workspace pill, padded right cluster). Their full
+    ~110-line rofi.rasi designs kept. Real whole-swaps remain only
+    summer-day/night (+ nord/retro-82 lost nothing: the stubs had no
+    design).
 (d) the whole-swap themes brought to the same bar (module parity
 verified textually 2026-07-05: whole-swaps carry every functional
 module; omitting cpu/memory is identity). Visual work is