Shorten the icon reveal when opening a tray menu

The menu is its own window anchored where the item was revealed, so it
survives if the bar re-hides immediately. Revealing for ~0.3s instead of
over a second makes the flash far less noticeable while still opening
the menu in view.

💘 Generated with Crush

Assisted-by: Crush:deepseek-v4.1-flash

AGENTS.md

@@ -135,12 +135,16 @@ preferred position controls where the hidden/kept boundary lands:
   hidden too; above ~300 app icons (Now Playing, TextInput) leak back.
 - `debug.spacerPos` (Double) overrides the seed for tuning without rebuilding.
 - Pressing a tray tile calls `MenuBarItemManager.press`. A hidden item sits
-  off-screen, and its menu would open off-screen too, so press briefly
-  `suspend()`s the hider, waits ~0.18s for the layout to settle, performs the
-  accessibility action (`kAXPressAction`, then `kAXShowMenuAction`), and
-  `resume()`s ~1s later. The reveal is momentary, not for the whole time the
-  panel is open. macOS does not let us place or anchor another app's menu
-  anywhere else, so a momentary reveal is the only way to show it in view.
+  off-screen, and its menu opens off-screen too (verified with `--diag-press`:
+  the menu window lands at negative x). So press briefly `suspend()`s the hider,
+  waits ~0.2s for the layout to settle, performs the accessibility action
+  (`kAXPressAction`, then `kAXShowMenuAction`), and `resume()`s ~0.1s later. The
+  menu is its own window anchored at the item's on-screen spot, so it survives
+  re-hiding.
+- **Cannot reveal a single icon.** The spacer hides a contiguous block to its
+  left, so a press can only reveal the whole block. Isolating one item would
+  need either per-item ordering control (not available) or covering the icons
+  with an overlay window instead of moving them off-screen.
 - **Order matters**: `AppDelegate` must call `setupStatusItem()` *before*
   `MenuBarHider.shared.prepare()`. If the hider contracts the bar first, the
   hamburger is created into the collapsed space and lands off-screen.