feat(bar): timezone line in the clock tooltip (LATER item)

Hovering the clock now leads with the zone — "{:%Z (UTC%z)}" above the
calendar — on the generated bar and both summer whole-swaps (parity).
Under auto-timezone the existing tz-watch SIGUSR2 reload keeps it
showing the currently detected zone. %Z is the abbreviation (BST), not
the IANA name — strftime has no code for that, and it satisfies the
"(optional)" nicety.

Verified: V0; V1 — the rendered generated config carries the new
tooltip-format and both summer jsonc parse with it. Hover render
queued for hardware.

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

agent/JOURNAL.md

@@ -17,6 +17,23 @@ Template:
 
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+## 2026-07-05 — clock zone tooltip (iteration #43, LATER item)
+- **Task:** LATER › auto-timezone Waybar tooltip. Bullet deleted.
+- **Did:** the clock tooltip's first line is now the zone —
+  `{:%Z (UTC%z)}` above the calendar — in the generated bar AND both
+  summer whole-swaps (parity). Under auto-timezone the existing
+  tz-watch SIGUSR2 reload keeps it current, so it shows the detected
+  zone live. (%Z abbreviation, not the IANA name — strftime has no
+  code for that; good enough for an "(optional)" nicety.)
+- **Verified:** V0; V1 — rendered generated config carries the new
+  tooltip-format; both summer jsonc parse (jq) with %Z present.
+  Hover render → V3 queued.
+- **Pending:** V3. LATER now holds only deferred/big/hw/human items.
+- **Next suggestion:** a QA sweep, or stop-and-wait — the queue is
+  effectively drained for unattended work; meaty LATER items
+  (wallpapers split is *deferred by decision*, installer round 2
+  [big]) deserve Bernardo's go-ahead or a fresh session.
+
 ## 2026-07-05 — doctor bar tripwire (iteration #42, LATER item)
 - **Task:** LATER › doctor Waybar warning. Bullet deleted.
 - **Did:** nomarchy-doctor-status (named bin, PATH): silent exit 0