[NO-ISSUE] Rename clazz to inputClass to help the understanding of the DSL

[mcruzdev]

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Pull request overview

This PR updates the Fluent Func DSL API documentation and parameter names to improve readability by renaming the commonly-used clazz parameter to inputClass in helper methods.

Changes:

• Renamed clazz parameters to inputClass across event*, function, consume, and emit* DSL helpers.
• Updated corresponding Javadoc @param entries to match the new parameter name.

Comments suppressed due to low confidence (1)

experimental/fluent/func/src/main/java/io/serverlessworkflow/fluent/func/dsl/FuncDSL.java:524

• The inferred input type local is named inputClass in function(Function) but inferredInputClass in function(String, Function). Consider using the same name in both overloads (e.g., inputClass) to keep naming consistent and avoid suggesting different semantics.

  public static <T, R> FuncCallStep<T, R> function(String name, Function<T, R> fn) {
    Class<T> inferredInputClass = ReflectionUtils.inferInputType(fn);
    return new FuncCallStep<>(name, fn, inferredInputClass);

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[mcruzdev]

Closing due a community member asked to work on this issue.

As this issue is simple and does not have high priority I am closing this PR.