feat(defaults): Compact header, Tiles button on, Classic tab layout

The owner's picks after testing the 1.36.0 beta:

- Header Stats Style defaults to Compact (two pills with rings) instead of
  Tiles. The resolver, the pre-paint stamp and the App Settings option all
  agree; an unknown value now reads as compact.
- The Tiles header button is ON by default everywhere but handhelds (their
  defaults object keeps it off, and the button still needs a 1180px window).
  The Ctrl+Shift+G gate in tileShortcutFor() now resolves an absent key
  through the device defaults too, so the chord and the button cannot
  disagree; before, it required a stored true.
- Tab Layout defaults to Classic (the single strip, as before). By state, By
  case and Ledger stay available as opt-ins. The tile-grid beta the owner used
  last had only this layout, and it is the one they wanted back.

zh-CN option labels follow the new "(default)" markers; docs and wiki updated.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

docs/wiki/Tile-Grid.md

@@ -9,9 +9,9 @@ never offered in a popped-out session window.
 
 ## Turning it on
 
-**App Settings → Header & Panels → Tiles.** This is a per-device setting, off by default,
-so turning it on at your desk never puts the button on your phone. It shows a **Tiles**
-button in the header, beside Split, and enables `Ctrl+Shift+G`.
+**App Settings → Header & Panels → Tiles.** This is a per-device setting, on by default
+everywhere except phones, and the button only appears in a window at least 1180px wide.
+It shows a **Tiles** button in the header, beside Split, and enables `Ctrl+Shift+G`.
 
 ## Opening a grid