fix(clippy): make clippy = host libs + riscv programs (shared PROGRAMS); libkos alloc spinlock (was unlocked across threads); keystore Account; gpu Rect; factory Entry; Default impls, let-chains, div_ceil, iter loops

crates/apps/snake/src/game.rs

@@ -44,6 +44,12 @@ pub struct Snake {
     rng_state: u32,
 }
 
+impl Default for Snake {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Snake {
     pub fn new() -> Self {
         let start = Position { x: GRID_WIDTH / 2, y: GRID_HEIGHT / 2 };

crates/apps/snake/src/main.rs

@@ -61,8 +61,7 @@ fn main() {
 
     loop {
         let count = renderer::render(&snake, &mut commands);
-        for i in 0..count {
-            let cmd = &commands[i];
+        for cmd in &commands[..count] {
             draw_rect(cmd.x, cmd.y, cmd.w, cmd.h, cmd.color);
         }
         flush();