style: auto-format example files with lux fmt

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

examples/showcase/custom_logging.lux

@@ -1,15 +1,3 @@
-// Custom Logging with Effects
-//
-// This demonstrates how effects let you abstract side effects.
-// The same code can be run with different logging implementations.
-//
-// Expected output:
-// [INFO] Starting computation
-// [DEBUG] x = 10
-// [INFO] Processing
-// [DEBUG] result = 20
-// Final: 20
-
 effect Log {
     fn info(msg: String): Unit
     fn debug(msg: String): Unit
@@ -26,18 +14,22 @@ fn computation(): Int with {Log} = {
 }
 
 handler consoleLogger: Log {
-    fn info(msg) = {
-        Console.print("[INFO] " + msg)
-        resume(())
-    }
-    fn debug(msg) = {
-        Console.print("[DEBUG] " + msg)
-        resume(())
-    }
+    fn info(msg) = 
+        {
+    Console.print("[INFO] " + msg)
+    resume(())
+}
+    fn debug(msg) = 
+        {
+    Console.print("[DEBUG] " + msg)
+    resume(())
+}
 }
 
 fn main(): Unit with {Console} = {
-    let result = run computation() with { Log = consoleLogger }
+    let result = run computation() with {
+    Log = consoleLogger,
+}
     Console.print("Final: " + toString(result))
 }