fix(theme): #79 review fixes — wrap-around schedule + HH:MM guard

Two low-severity edge bugs from a fresh-eyes review of the session batch:

- cmd_auto: an inverted schedule (sunrise > sunset, i.e. a day window that
  crosses midnight) stayed perpetually on the day theme — the old
  `not between` shortcut is an empty interval when sunrise > sunset.
  Replaced with a real wrap-around: daytime = mins >= sunrise or
  mins < sunset, so both directions switch. Normal sunrise < sunset path
  is unchanged (checks.auto-theme still holds).
- rofi autotheme HH:MM validator: `[0-2][0-9]` accepted 24:00–29:59.
  Tightened the case pattern to `[01][0-9]:[0-5][0-9]|2[0-3]:[0-5][0-9]`
  so out-of-range hours are rejected (they'd otherwise skew the boundary).

(Two other review findings dismissed: papirus DOES ship breeze/breeze-dark
so that iconPacks prefix is correct; the doctor RAM-unknown row is cosmetic
since /proc/meminfo is always readable.)

Verification: py_compile; boundary truth-table (normal + wrap-around);
HH:MM case table (23:00/19:59/20:00 accept, 24/25/30:00 reject); auto
--which normal-case unchanged; menu bash -n; flake check green.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

pkgs/nomarchy-theme-sync/nomarchy-theme-sync.py

@@ -528,10 +528,13 @@ def cmd_auto(args) -> None:
     sunset = _hhmm_to_min(at.get("sunset", "20:00"), "20:00")
     now = time.localtime()
     mins = now.tm_hour * 60 + now.tm_min
-    # Normal case sunrise < sunset: daytime is the span between them. If a
-    # user inverts them, treat the between-span as night (still coherent).
-    between = sunrise <= mins < sunset
-    daytime = between if sunrise <= sunset else not between
+    # Daytime is the span between sunrise and sunset. Also handle a
+    # wrap-around pair (sunrise after sunset → the day window crosses
+    # midnight), so an inverted schedule still switches both ways.
+    if sunrise <= sunset:
+        daytime = sunrise <= mins < sunset
+    else:
+        daytime = mins >= sunrise or mins < sunset
     target = day if daytime else night
 
     if args.which: