style: auto-format example files with lux fmt

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

examples/showcase/early_return.lux

@@ -1,37 +1,18 @@
-// Early Return with Fail Effect
-//
-// The Fail effect provides clean early termination.
-// Functions declare their failure modes in the type signature.
-//
-// Expected output:
-// Parsing "42"...
-// Result: 42
-// Parsing "100"...
-// Result: 100
-// Dividing 100 by 4...
-// Result: 25
-
 fn parsePositive(s: String): Int with {Fail, Console} = {
     Console.print("Parsing \"" + s + "\"...")
-    if s == "42" then 42
-    else if s == "100" then 100
-    else Fail.fail("Invalid number: " + s)
+    if s == "42" then 42 else if s == "100" then 100 else Fail.fail("Invalid number: " + s)
 }
 
 fn safeDivide(a: Int, b: Int): Int with {Fail, Console} = {
     Console.print("Dividing " + toString(a) + " by " + toString(b) + "...")
-    if b == 0 then Fail.fail("Division by zero")
-    else a / b
+    if b == 0 then Fail.fail("Division by zero") else a / b
 }
 
 fn main(): Unit with {Console} = {
-    // These succeed
     let n1 = run parsePositive("42") with {}
     Console.print("Result: " + toString(n1))
-
     let n2 = run parsePositive("100") with {}
     Console.print("Result: " + toString(n2))
-
     let n3 = run safeDivide(100, 4) with {}
     Console.print("Result: " + toString(n3))
 }