Inspector 0.9.3: all times follow the stack's TZ; docs explain why it matters

CHANGELOG.md

@@ -7,6 +7,33 @@ Version numbers follow [Semantic Versioning](https://semver.org/spec/v2.0.0.html
 
 ---
 
+## [0.9.3] — 2026-10-28
+
+### Changed
+
+- **Every time follows the `TZ` of the Inspector stack.** Before, the dashboard,
+  Events page and alerts were always in US Pacific time while the maintenance window
+  and logs used `TZ`, so anyone outside Pacific saw times hours off (e.g. a 02:00
+  Berlin window shown as 5:00 PM). Now the dashboard, the Events page (including
+  where each day starts), alert times, cooldown times and logs all use `TZ`.
+- Alert times include the zone abbreviation (`10-28 09:27 AM CET`), and "Cooldown
+  until" in alerts, event messages and logs is a local time instead of a UTC
+  timestamp.
+- The active time zone is shown at the bottom of every Settings page, on the Events
+  page and on the Maintenance page.
+- **If you never set `TZ`**, times are now shown in UTC instead of Pacific. Set `TZ`
+  in the stack (e.g. `America/New_York`). An unrecognized name logs a warning and
+  falls back to UTC.
+
+### Docs
+
+- INSTALL: `TZ` is now marked as needed, with a "Why the time zone matters" section
+  (maintenance window, alerts, dashboard, logs), how to find your zone name, and a
+  troubleshooting row. Guide: a Time zone section and a first-login check. Compose
+  and README updated.
+
+---
+
 ## [0.9.2] — 2026-10-28
 
 Fixes from a code and security review. None of them change how containers are