Add async query methods and update versions

Version Updates
-- Updated `SearchesVer` to 0.8.6 and `ProblemsVer` to 1.0.0-preview-4.9 in `Directory.Build.props`.

Async Query Methods
-- Added `FirstAsync<TEntity, TFilter>` for retrieving the first entity with filter and sorting.
-- Added `FirstAsync<TEntity, TDto, TFilter>` for retrieving the first DTO with filter and sorting.
-- Added `ListAsync<TEntity, TFilter>` for retrieving a list of entities with filter and sorting.
-- Added `ListAsync<TEntity, TDto, TFilter>` for retrieving a list of DTOs with filter and sorting.
-- Added `SearchAsync<TEntity, TFilter>` for performing paged search returning entities.
-- Added `SearchAsync<TEntity, TDto, TFilter>` for performing paged search returning DTOs.
-- Included XML documentation for all new methods.
-- Implemented exception handling for sorting and general errors with logging.

Author: eglauko

src/Directory.Build.props

@@ -4,7 +4,7 @@
 		<AspTargets>net8.0;net9.0;</AspTargets>
 	</PropertyGroup>
 	<PropertyGroup>
-		<SearchesVer>0.8.5</SearchesVer>
+		<SearchesVer>0.8.6</SearchesVer>
 		<SearchesPreview></SearchesPreview>
 	</PropertyGroup>
 	<PropertyGroup>
@@ -14,6 +14,6 @@
 	<PropertyGroup>
 		<PropSelVer>1.0.2</PropSelVer>
 		<OpHintVer>1.0.0</OpHintVer>
-		<ProblemsVer>1.0.0-preview-4.8</ProblemsVer>
+		<ProblemsVer>1.0.0-preview-4.9</ProblemsVer>
 	</PropertyGroup>
 </Project>