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/tile-grid-plan.md

@@ -20,6 +20,10 @@ or settled a question the spec left open. The invariants as built are in
 - **`Ctrl+Shift+G` follows `showTileGridButton`** (decided by the owner, decision 6): with
   the setting off the toggle chord is inert. A grid opened another
   way (Ctrl/Cmd+click, a dropped tab, "Open group as tiles") keeps all its chords.
+- **The Tiles button ships ON** (owner, 1.36.0 beta): `showTileGridButton` defaults to on
+  everywhere but handhelds (their defaults object keeps it off), so the chord is live by
+  default too. An absent key resolves through the device defaults in both the button
+  (settings-ui.js) and the chord (`tileShortcutFor`), so they cannot disagree.
 - **Dividers are grid tracks.** Each gap between columns and rows is its own 6px track (the
   grid gap is 0) and every tile and every empty slot is placed explicitly in its cell
   (`grid.cells`, see "Tiles move"). Fractions reset when the column or row count changes.