Removed all references to Ack in docs

kyo-prelude/shared/src/main/scala/kyo/Emit.scala

@@ -64,8 +64,7 @@ object Emit:
           * @param acc
           *   The initial accumulator value
           * @param f
-          *   The folding function that takes the current accumulator and emitted value, and returns a tuple of the new accumulator and an
-          *   Ack to control further emissions
+          *   The folding function that takes the current accumulator and emitted value, and returns an updated accumulator
           * @param v
           *   The computation with Emit effect
           * @return
@@ -147,7 +146,7 @@ object Emit:
           * @return
           *   A tuple containing:
           *   - Maybe[V]: The first emitted value if any (None if no values were emitted)
-          *   - A continuation function that takes an Ack and returns the remaining computation
+          *   - A continuation function that returns the remaining computation
           */
         def apply[A: Flat, S](v: A < (Emit[V] & S))(using tag: Tag[Emit[V]], frame: Frame): (Maybe[V], () => A < (Emit[V] & S)) < S =
             ArrowEffect.handleFirst(tag, v)(

kyo-prelude/shared/src/main/scala/kyo/Poll.scala

@@ -4,21 +4,16 @@ import kyo.kernel.ArrowEffect
 
 /** Represents polling values from a data source with backpressure control.
   *
-  * Poll is used to consume values while maintaining flow control through acknowledgements. Each poll operation takes an Ack that determines
-  * how many values can be consumed, and returns Maybe[V] indicating whether a value was available.
-  *
-  * Key behaviors:
-  *   - Each poll operation requires an Ack value that signals the consumer's readiness to receive more data
+  * * Key behaviors:
   *   - Poll returns Maybe[V], where:
   *     - Present(v) indicates a successful poll with value v
   *     - Absent indicates the end of the stream (no more values will be available)
   *   - Once Absent is received, the consumer should stop polling as the stream has terminated
-  *   - Backpressure is maintained through the Ack responses:
-  *     - Continue signals readiness to receive more values
-  *     - Stop indicates the consumer wants to pause receiving values
+  * Poll is used to consume values. Each poll operation signals readiness to receive data, and returns Maybe[V] indicating whether a value
+  * was available.
   *
   * The effect enables building streaming data pipelines with controlled consumption rates. Handlers can process values at their own pace by
-  * returning appropriate Ack responses, while respecting stream termination signals.
+  * polling only as needed.
   *
   * @tparam V
   *   The type of values being polled from the data source.
@@ -152,9 +147,8 @@ object Poll:
 
         /** Runs a Poll effect with a single input value, stopping after the first poll operation.
           *
-          * This method provides a single input value to the Poll effect and stops after the first poll. It returns a tuple containing:
-          *   - An Ack value indicating whether to continue or stop
-          *   - A continuation function that can process the Maybe[V] result of the poll
+          * This method provides a single input value to the Poll effect and stops after the first poll. It returns a continuation function
+          * that can process the Maybe[V] result of the poll
           *
           * @param v
           *   The computation requiring Poll values