fix(web): clamp wgpu surface to CSS pixels on HiDPI to prevent wasm panic

Root cause: fit_canvas_to_parent requests a wgpu surface sized in
physical pixels (CSS pixels × devicePixelRatio). On HiDPI displays
(DPR ≈ 2) the physical size (e.g. 2612×1469) exceeds WebGL2's per-
dimension texture limit of 2048, triggering a wgpu validation panic
that kills the WASM thread immediately on the first window resize.

Fix: add `resolution: WindowResolution::default().with_scale_factor_override(1.0)`
to the primary window so Bevy uses CSS/logical pixels as the surface
dimensions. For a 1306×734 CSS viewport this keeps the framebuffer well
within 2048 regardless of devicePixelRatio.

Also remove the temporary [drag] console logging added in the previous
commit — the panic was causing drag to never run, not a hit-test bug.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

solitaire_web/src/lib.rs

@@ -13,7 +13,7 @@ use bevy::asset::AssetMetaCheck;
 use bevy::prelude::*;
 use bevy::render::RenderPlugin;
 use bevy::render::settings::{RenderCreation, WgpuSettings, WgpuSettingsPriority};
-use bevy::window::{Window, WindowPlugin};
+use bevy::window::{Window, WindowPlugin, WindowResolution};
 use solitaire_data::LocalOnlyProvider;
 use solitaire_engine::CoreGamePlugin;
 use wasm_bindgen::prelude::*;
@@ -34,6 +34,14 @@ pub fn start() {
                         fit_canvas_to_parent: true,
                         // Prevent the browser stealing keyboard events and scroll.
                         prevent_default_event_handling: true,
+                        // Force scale_factor = 1.0 so the wgpu surface is sized in
+                        // CSS/logical pixels rather than physical pixels.  Without this,
+                        // HiDPI displays (devicePixelRatio ≥ 2) produce a framebuffer
+                        // whose physical width can exceed WebGL2's 2048-pixel per-
+                        // dimension limit, causing a wgpu validation panic on the first
+                        // resize event and killing the WASM thread.
+                        resolution: WindowResolution::default()
+                            .with_scale_factor_override(1.0),
                         ..default()
                     }),
                     ..default()