style: auto-format example files with lux fmt

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

examples/builtin_effects.lux

@@ -1,31 +1,7 @@
-// Demonstrating built-in effects in Lux
-//
-// Lux provides several built-in effects:
-// - Console: print and read from terminal
-// - Fail: early termination with error
-// - State: get/put mutable state (requires runtime initialization)
-// - Reader: read-only environment access (requires runtime initialization)
-//
-// This example demonstrates Console and Fail effects.
-//
-// Expected output:
-// Starting computation...
-// Step 1: validating input
-// Step 2: processing
-// Result: 42
-// Done!
+fn safeDivide(a: Int, b: Int): Int with {Fail} = if b == 0 then Fail.fail("Division by zero") else a / b
 
-// A function that can fail
-fn safeDivide(a: Int, b: Int): Int with {Fail} =
-    if b == 0 then Fail.fail("Division by zero")
-    else a / b
+fn validatePositive(n: Int): Int with {Fail} = if n < 0 then Fail.fail("Negative number not allowed") else n
 
-// A function that validates input
-fn validatePositive(n: Int): Int with {Fail} =
-    if n < 0 then Fail.fail("Negative number not allowed")
-    else n
-
-// A computation that uses multiple effects
 fn compute(input: Int): Int with {Console, Fail} = {
     Console.print("Starting computation...")
     Console.print("Step 1: validating input")
@@ -36,7 +12,6 @@ fn compute(input: Int): Int with {Console, Fail} = {
     result
 }
 
-// Main function
 fn main(): Unit with {Console} = {
     let result = run compute(21) with {}
     Console.print("Done!")