strip unused esp32 deps, fix render loop power waste

crates/client-esp32/Cargo.toml

@@ -15,14 +15,6 @@ esp-idf-sys = "0.37"
 
 mipidsi = "0.10"
 embedded-graphics = "0.8"
-embedded-text = "0.7"
-embedded-hal-bus = "0.3"
-
-serde = { version = "1.0", default-features = false, features = [
-    "derive",
-    "alloc",
-] }
-postcard = { version = "1.1", default-features = false, features = ["alloc"] }
 
 log = "0.4"
 

crates/client-esp32/src/boot/logo.rs

@@ -41,12 +41,6 @@ fn fill_triangles<D: DrawTarget<Color = Rgb565>>(
     }
 }
 
-// Outer hexagon vertices (150x150 viewBox)
-const OUTER_HEX: [(f32, f32); 6] = [
-    (75.0, 0.0), (150.0, 37.5), (150.0, 112.5),
-    (75.0, 150.0), (0.0, 112.5), (0.0, 37.5),
-];
-
 // Converted from SVG: (150,75)(112.5,150)(37.5,150)(0,75)(37.5,0)(112.5,0)
 // Reordered to start from top for cleaner fan
 const OUTER_HEX_SVG: [(f32, f32); 6] = [

crates/client-esp32/src/tasks/render.rs

@@ -47,7 +47,8 @@ pub fn run(
     display.flush().unwrap();
 
     loop {
-        let timeout = RENDER_POLL_INTERVAL.min(SCROLL_TICK);
+        let has_scrollers = widgets.values().any(|c| c.scroll.is_active());
+        let timeout = if has_scrollers { SCROLL_TICK } else { RENDER_POLL_INTERVAL };
         match rx.recv_timeout(timeout) {
             Ok(RenderEvent::ConnectionStatus(status)) => {
                 if status != connected {