v4.1.1: pointer-first betting and visible payouts in the GUI

The felt snaps the hover to the shared fine lattice: inner half of a cell is a straight, an edge a split, a crossing a corner. A translucent chip previews the target and the covered cells tint. Left click adds the selected chip, right or middle click takes one back through the new Bets::reduce; C or CLEAR empties the slip, and SPIN stays disabled with no chips.

The result now pays out: the wheel leaves the winning pocket under the pointer, the winning cell and pocket get a gold outline, and the sidebar reports the amount returned and the net for the round (NO WIN on a loss). Placing a chip after a result starts the next round without losing the wheel position.

The column row now spans the full width like a real table instead of hugging the left edge. Adds tests for lattice snapping, target naming and taking chips back.

1 files changed, 9 insertions, 3 deletions

diff --git a/docs/GUI-PLAN.md b/docs/GUI-PLAN.md
index 8c3db0a..bb63530 100644
--- a/docs/GUI-PLAN.md
+++ b/docs/GUI-PLAN.md
@@ -79,11 +79,17 @@ crash board from its local clock.
   green kept for the table, a 4/8/12/16/24 spacing scale, radii, and the type
   scale. Two embedded fonts: Open Sans (OFL) for text, Hack (MIT) for numbers,
   chips and labels. Licences sit next to the files in `gui/assets/fonts/`.
-- `gui/src/roulette.rs` draws the felt, chips, the fine lattice cursor and the
-  wheel from a `RouletteView`; it owns the geometry, not the rules.
+- `gui/src/roulette.rs` draws the felt, chips and wheel from a `RouletteView`;
+  it owns the geometry, not the rules. The felt is pointer-first: the hover
+  snaps to the fine lattice, so the inner half of a cell is a straight, an edge
+  is a split and a crossing is a corner. Left click adds the selected chip,
+  right or middle click takes one back, and a translucent chip previews the
+  target under the pointer.
 - `gui/src/app.rs` composes the persistent header (connection, account,
   balance) with the table and the betting sidebar. The demo state animates a
-  2.4 s wheel spin and highlights the winning pocket and cell.
+  2.4 s wheel spin, highlights the winning pocket and cell, and reports the
+  amount paid and the net for the round. SPIN and CLEAR sit side by side so
+  clearing is never below the fold.
 - `gui/tests/layout.rs` covers the pure maths (money grouping, wheel angle,
   table aspect, bet names). UI wiring tests arrive with `egui_kittest` in
   Phase 4.