docs(ui): add /// doc comments above 19 impl blocks (R2.1 compliance)

ui/src/hook/debounced_value/impl.rs

@@ -1,5 +1,6 @@
 use super::*;
 
+/// Inherent implementation of [`DebouncedValue`].
 impl<T: Clone + PartialEq + Default + 'static> DebouncedValue<T> {
     /// Schedules `next` to become the emitted value. The
     /// commit happens on the next `tick` call at or after
@@ -81,6 +82,7 @@ impl<T: Clone + PartialEq + Default + 'static> DebouncedValue<T> {
     }
 }
 
+/// Debug formatting for [`DebouncedValue`].
 impl<T: Clone + PartialEq + Debug + Default + 'static> Display for DebouncedValue<T> {
     /// Formats the [`DebouncedValue`] via the supplied formatter.
     ///

ui/src/hook/lazy/impl.rs

@@ -1,5 +1,6 @@
 use super::*;
 
+/// Equality for [`LoadState`].
 impl<T: PartialEq> PartialEq for LoadState<T> {
     /// Returns `true` when `self` and `other` are equivalent by the [`PartialEq`] contract.
     ///
@@ -21,6 +22,7 @@ impl<T: PartialEq> PartialEq for LoadState<T> {
     }
 }
 
+/// Inherent implementation of [`LazyComponent`].
 impl<T: Clone + PartialEq + 'static> LazyComponent<T> {
     /// Creates a new lazy component with the given
     /// factory. The factory is NOT called yet.
@@ -140,6 +142,7 @@ impl<T: Clone + PartialEq + 'static> LazyComponent<T> {
     }
 }
 
+/// Debug formatting for [`LazyComponent`].
 impl<T: Clone + PartialEq + Debug + 'static> Debug for LazyComponent<T> {
     /// Formats the [`LazyComponent`] via the supplied formatter.
     ///

ui/src/hook/previous/impl.rs

@@ -1,5 +1,6 @@
 use super::*;
 
+/// Inherent implementation of [`Previous`].
 impl<T: Clone + PartialEq + 'static> Previous<T> {
     /// Creates a new `Previous` with no recorded value.
     /// The `previous` signal starts at `None`.
@@ -40,6 +41,7 @@ impl<T: Clone + PartialEq + 'static> Previous<T> {
     }
 }
 
+/// Debug formatting for [`Previous`].
 impl<T: Clone + PartialEq + Debug + 'static> Display for Previous<T> {
     /// Formats the [`Previous`] via the supplied formatter.
     ///
@@ -58,6 +60,7 @@ impl<T: Clone + PartialEq + Debug + 'static> Display for Previous<T> {
     }
 }
 
+/// Default-construction for [`Previous`].
 impl<T: Clone + PartialEq + 'static> Default for Previous<T> {
     /// Constructs a default [`Previous`] value.
     fn default() -> Self {

ui/src/hook/suspense/impl.rs

@@ -1,5 +1,6 @@
 use super::*;
 
+/// Inherent implementation of [`SuspenseHandle`].
 impl<T: Clone + PartialEq + 'static> SuspenseHandle<T> {
     /// Creates a new `SuspenseHandle` in the `Pending`
     /// phase.
@@ -37,13 +38,15 @@ impl<T: Clone + PartialEq + 'static> SuspenseHandle<T> {
     }
 }
 
+/// Default-construction for [`SuspenseHandle`].
 impl<T: Clone + PartialEq + 'static> Default for SuspenseHandle<T> {
     /// Constructs a default [`SuspenseHandle`] value.
     fn default() -> Self {
         Self::new()
     }
 }
 
+/// Debug formatting for [`SuspenseHandle`].
 impl<T: Clone + PartialEq + Debug + 'static> Display for SuspenseHandle<T> {
     /// Formats the [`SuspenseHandle`] via the supplied formatter.
     ///
@@ -59,6 +62,7 @@ impl<T: Clone + PartialEq + Debug + 'static> Display for SuspenseHandle<T> {
     }
 }
 
+/// Equality for [`SuspensePhase`].
 impl<T: PartialEq> PartialEq for SuspensePhase<T> {
     /// Returns `true` when `self` and `other` are equivalent by the [`PartialEq`] contract.
     ///

ui/src/hook/throttled_value/impl.rs

@@ -1,5 +1,6 @@
 use super::*;
 
+/// Inherent implementation of [`ThrottledValue`].
 impl<T: Clone + PartialEq + Default + 'static> ThrottledValue<T> {
     /// Sends `next` through the throttle.
     ///
@@ -107,6 +108,7 @@ impl<T: Clone + PartialEq + Default + 'static> ThrottledValue<T> {
     }
 }
 
+/// Debug formatting for [`ThrottledValue`].
 impl<T: Clone + PartialEq + Debug + Default + 'static> Display for ThrottledValue<T> {
     /// Formats the [`ThrottledValue`] via the supplied formatter.
     ///

ui/src/hook/use_async/impl.rs

@@ -1,5 +1,6 @@
 use super::*;
 
+/// Hook-context teardown for [`UseAsyncSlot`].
 impl<T, L> Drop for UseAsyncSlot<T, L>
 where
     T: Clone + PartialEq + 'static,
@@ -17,6 +18,7 @@ where
     }
 }
 
+/// Inherent implementation of [`UseAsyncHandle`] — slot lifecycle internals.
 impl<T, L> UseAsyncHandle<T, L>
 where
     T: Clone + PartialEq + 'static,
@@ -58,6 +60,7 @@ where
     }
 }
 
+/// Inherent implementation of [`UseAsyncHandle`] — public reactive API.
 impl<T, L> UseAsyncHandle<T, L>
 where
     T: Clone + PartialEq + 'static,
@@ -152,6 +155,7 @@ impl HasLoadingHint for () {
     fn empty() -> Self {}
 }
 
+/// Debug formatting for [`UseAsyncHandle`].
 impl<T, L> core::fmt::Debug for UseAsyncHandle<T, L>
 where
     T: Clone + PartialEq + 'static,
@@ -176,6 +180,7 @@ where
     }
 }
 
+/// Default-construction for [`UseAsyncHandle`].
 impl<T, L> Default for UseAsyncHandle<T, L>
 where
     T: Clone + PartialEq + 'static,