Refactor to hand-mode UI and reorganize WGSL shader

Replace spatial force / stats panels with unified hand force panels; simplify app.rs wiring and reorganize shader.wgsl for the hand rendering layout.

src/app.rs

@@ -13,7 +13,7 @@ use crate::{
     },
     ui::{
         ConfigPanelState, ConnectPanelState, FloatingPanelState, MatrixConfigState,
-        draw_config_panel, draw_spatial_force_panel, draw_stats_panel, panel_restore_item,
+        draw_config_panel, draw_hand_force_panels, panel_restore_item,
     },
 };
 use eframe::{egui, egui_wgpu};
@@ -167,12 +167,7 @@ impl EskinDesktopApp {
             live_rates: LiveRateMeters::new(),
             context_menu_open: false,
             context_menu_pos: egui::pos2(24.0, 48.0),
-            active_mode: ActiveMode::Finger(FingerMode {
-                rows: 12,
-                cols: 7,
-                range: 0..7000,
-                dot: true,
-            }),
+            active_mode: ActiveMode::Hand(HandGatewayMode { range: 0..7000 }),
         }
     }
 
@@ -190,7 +185,6 @@ impl EskinDesktopApp {
                 active_mode: self.active_mode.clone(),
             },
         ));
-        self.paint_spatial_force_overlay(ui, rect);
     }
 
     fn paint_spatial_force_overlay(&self, ui: &egui::Ui, rect: egui::Rect) {
@@ -223,11 +217,7 @@ impl EskinDesktopApp {
     }
 
     fn draw_workspace(&mut self, ui: &mut egui::Ui) {
-        if self.breakout_visible {
-            self.draw_split_workspace(ui);
-        } else {
-            self.draw_wgpu_background_rect(ui, ui.max_rect());
-        }
+        self.draw_wgpu_background_rect(ui, ui.max_rect());
     }
 
     fn draw_split_workspace(&mut self, ui: &mut egui::Ui) {
@@ -295,9 +285,7 @@ impl EskinDesktopApp {
                 self.signal_history.remove(0);
             }
 
-            if self.config_state.mode == SerialMode::Hand {
-                update_hand_signal_histories(&mut self.hand_signal_histories, &sample.matrix);
-            }
+            update_hand_signal_histories(&mut self.hand_signal_histories, &sample.matrix);
         }
     }
 
@@ -423,12 +411,6 @@ impl EskinDesktopApp {
         self.matrix_config_panel.visible = false;
         self.context_menu_open = false;
 
-        if self.breakout_visible {
-            self.config_panel.visible = false;
-            self.stats_panel.visible = false;
-            return;
-        }
-
         if let Some(next_mode) = draw_config_panel(
             ctx,
             &mut self.config_panel,
@@ -439,39 +421,11 @@ impl EskinDesktopApp {
             self.live_rates.sample_rate_hz,
             self.live_rates.render_rate_hz,
         ) {
-            if next_mode == SerialMode::Hand {
-                self.config_state.mode = SerialMode::Finger;
-                self.connect_state.mode = SerialMode::Finger;
-                self.config_state.baud_rate = SerialMode::Finger.baud_rate();
-                self.active_mode = ActiveMode::Finger(FingerMode {
-                    rows: self.matrix_config.rows,
-                    cols: self.matrix_config.cols,
-                    range: 0..7000,
-                    dot: true,
-                });
-                self.breakout_visible = true;
-            } else {
-                self.switch_mode(next_mode);
-            }
+            self.switch_mode(next_mode);
         }
 
-        if self.config_state.mode == SerialMode::Finger {
-            self.stats_panel.visible = true;
-            draw_stats_panel(
-                ctx,
-                &mut self.stats_panel,
-                &self.signal_history,
-                self.latest_spatial_force,
-            );
-        } else {
-            self.stats_panel.visible = false;
-        }
-
-        if let Some(force) = self.latest_spatial_force {
-            self.spatial_force_panel_force = Some(force);
-        }
-
-        draw_spatial_force_panel(ctx, self.spatial_force_panel_force, &self.signal_history);
+        self.stats_panel.visible = false;
+        draw_hand_force_panels(ctx, true, &self.hand_signal_histories);
     }
 
     fn draw_panel_context_menu(&mut self, ctx: &egui::Context) {

src/ui.rs

@@ -104,10 +104,10 @@ impl Default for ConfigPanelState {
             .unwrap_or_else(|| "COM3".to_owned());
 
         Self {
-            mode: SerialMode::Finger,
+            mode: SerialMode::Hand,
             port,
             available_ports,
-            baud_rate: 921_600,
+            baud_rate: SerialMode::Hand.baud_rate(),
             data_bits: 8,
             stop_bits: 1,
             parity: Parity::None,
@@ -126,7 +126,7 @@ impl Default for ConnectPanelState {
         let port = serial_enum().unwrap_or_default();
         let selected_port = port.first().cloned().unwrap_or_default();
         Self {
-            mode: SerialMode::Finger,
+            mode: SerialMode::Hand,
             port,
             selected_port,
             duration: 10,
@@ -499,27 +499,14 @@ pub fn draw_spatial_force_panel(
 }
 
 fn draw_mode_row(ui: &mut egui::Ui, config: &mut ConfigPanelState) -> Option<SerialMode> {
-    let mut changed_to = None;
+    config.mode = SerialMode::Hand;
+    config.baud_rate = SerialMode::Hand.baud_rate();
     ui.horizontal_wrapped(|ui| {
-        ui.colored_label(dim_text(), "模式");
+        ui.colored_label(dim_text(), "Mode");
         ui.add_space(12.0);
-
-        if mode_button(ui, &mut config.mode, SerialMode::Finger, "指尖模块") {
-            changed_to = Some(SerialMode::Finger)
-        }
-        if mode_button(ui, &mut config.mode, SerialMode::Hand, "游戏体验") {
-            changed_to = Some(SerialMode::Hand)
-        }
-        // mode_button(ui, &mut config.mode, SerialMode::Model, "模型");
-
-        // Legacy reconnect controls. Current sensors run fixed 921600 baud without auto-reconnect UI.
-        // ui.with_layout(egui::Layout::right_to_left(egui::Align::Center), |ui| {
-        //     ui.checkbox(&mut config.auto_reconnect, "自动");
-        //     ui.colored_label(dim_text(), "重连");
-        // });
+        ui.label(style::panel_title("Hand Gateway"));
     });
-
-    changed_to
+    None
 }
 
 fn draw_connection_row(