Revert "feat(engine): per-theme nearest-sampling opt-in for pixel-art themes"

This reverts commit 17e3112502.

solitaire_engine/src/theme/plugin.rs

@@ -187,7 +187,6 @@ fn sync_card_image_set_with_active_theme(
     themes: Res<Assets<CardTheme>>,
     mut card_image_set: Option<ResMut<CardImageSet>>,
     mut state_events: MessageWriter<StateChangedEvent>,
-    mut images: ResMut<Assets<Image>>,
 ) {
     let Some(active) = active else { return };
     let active_id = active.0.id();
@@ -208,9 +207,6 @@ fn sync_card_image_set_with_active_theme(
     let Some(theme) = themes.get(&active.0) else {
         return;
     };
-    if theme.meta.pixel_art {
-        apply_nearest_sampler_to_theme_images(theme, &mut images);
-    }
     let Some(card_image_set) = card_image_set.as_deref_mut() else {
         return;
     };
@@ -218,32 +214,6 @@ fn sync_card_image_set_with_active_theme(
     state_events.write(StateChangedEvent);
 }
 
-/// Overrides the texture sampler on every face + back `Image` in
-/// `theme` to nearest-neighbor (point) sampling, so non-integer
-/// downscales preserve crisp pixel-grid edges instead of bilinear
-/// blur.
-///
-/// Called only for themes whose manifest sets `meta.pixel_art = true`.
-/// SVG-rasterised themes leave the field at its `false` default and
-/// keep Bevy's smooth-downscale sampler — pixel-art and SVG paths use
-/// different filters from the same loader pipeline because they
-/// optimise for different artwork tradeoffs.
-fn apply_nearest_sampler_to_theme_images(
-    theme: &CardTheme,
-    images: &mut Assets<Image>,
-) {
-    use bevy::image::{ImageSampler, ImageSamplerDescriptor};
-    let nearest = ImageSampler::Descriptor(ImageSamplerDescriptor::nearest());
-    for handle in theme.faces.values() {
-        if let Some(image) = images.get_mut(handle) {
-            image.sampler = nearest.clone();
-        }
-    }
-    if let Some(image) = images.get_mut(&theme.back) {
-        image.sampler = nearest;
-    }
-}
-
 /// Pure helper that copies the theme's image handles into the
 /// `[suit][rank]` face matrix and into the dedicated `theme_back`
 /// slot. Split out so it can be unit-tested without spinning up a
@@ -489,7 +459,6 @@ mod tests {
                 author: "test".into(),
                 version: "0".into(),
                 card_aspect: (2, 3),
-                pixel_art: false,
             },
             faces: HashMap::new(),
             back: Handle::default(),
@@ -754,7 +723,6 @@ mod tests {
                     author: "x".into(),
                     version: "x".into(),
                     card_aspect: (2, 3),
-                    pixel_art: false,
                 },
             }],
         });