Refactor query handlers to remove NotFoundException

Refactored query handlers (`ReadProfileViewQueryHandler`,
`ReadRecActionViewQueryHandler`, and `ReadResultViewQueryHandler`)
to return empty results instead of throwing `NotFoundException`
when no data is found. Simplified the logic by removing null
or empty result checks and directly returning mapped results.

Updated corresponding test cases to align with the new behavior:
- Removed `try-catch` blocks for `NotFoundException`.
- Adjusted assertions to handle empty results.
- Removed the test case for `ReadRecActionViewQuery` that
  expected `NotFoundException`.

This change reflects a design shift to let the calling code
handle empty results instead of relying on exceptions.

src/ReC.Application/Profile/Queries/ReadProfileViewQuery.cs

@@ -29,8 +29,6 @@ public class ReadProfileViewQueryHandler(IRepository<ProfileView> repo, IMapper
 
         var profiles = await query.ToListAsync(cancel);
 
-        return profiles is null || profiles.Count == 0
+        return mapper.Map<IEnumerable<ProfileViewDto>>(profiles);
-            ? throw new NotFoundException($"Profile {request.Id} not found.")
-            : mapper.Map<IEnumerable<ProfileViewDto>>(profiles);
     }
 }

src/ReC.Application/RecActions/Queries/ReadRecActionViewQuery.cs

@@ -31,9 +31,6 @@ public class ReadRecActionViewQueryHandler(IRepository<RecActionView> repo, IMap
 
         var actions = await query.ToListAsync(cancel);
 
-        if (actions.Count == 0)
-            throw new NotFoundException($"No actions found for the profile {request.ProfileId}.");
-
         return mapper.Map<IEnumerable<RecActionViewDto>>(actions);
     }
 }

src/ReC.Application/Results/Queries/ReadResultViewQuery.cs

@@ -54,15 +54,6 @@ public class ReadResultViewQueryHandler(IRepository<ResultView> repo, IMapper ma
             ? await GetLastBatchEntitiesAsync(q, cancel)
             : await q.ToListAsync(cancel);
 
-        if (entities.Count == 0)
-            throw new NotFoundException($"No result views found for the given criteria. Criteria: {
-                JsonSerializer.Serialize(request, options: new()
-                {
-                    PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
-                    WriteIndented = true
-                })}"
-            );
-
         return mapper.Map<IEnumerable<ResultViewDto>>(entities);
     }
 

tests/ReC.Tests/Application/Profile/ProfileQueryTests.cs

@@ -30,23 +30,18 @@ public class ProfileQueryTests : RecApplicationTestBase
         var (sender, scope) = CreateScopedSender();
         using var _ = scope;
 
-        try
-        {
         var profiles = await sender.Send(new ReadProfileViewQuery
         {
             Id = profileId,
             IncludeActions = false
         });
 
-            var profile = profiles.Single();
+        var profile = profiles.SingleOrDefault();
-
+        Assert.Multiple(() =>
-            Assert.That(profile.Id, Is.EqualTo(profileId));
-            Assert.That(profile.ProfileName, Is.Not.Null.And.Not.Empty);
-            Assert.That(profile.Active, Is.True);
-        }
-        catch (NotFoundException)
         {
-            Assert.Pass("NotFound is acceptable when profile does not exist");
+            Assert.That(profile?.Id, Is.EqualTo(profileId));
-        }
+            Assert.That(profile?.ProfileName, Is.Not.Null.And.Not.Empty);
+            Assert.That(profile?.Active, Is.True);
+        });
     }
 }

tests/ReC.Tests/Application/RecActions/RecActionQueryTests.cs

@@ -30,34 +30,11 @@ public class RecActionQueryTests : RecApplicationTestBase
         var (sender, scope) = CreateScopedSender();
         using var _ = scope;
 
-        try
-        {
         var actions = await sender.Send(new ReadRecActionViewQuery
         {
             ProfileId = profileId
         });
 
-            Assert.That(actions, Is.Not.Empty);
         Assert.That(actions.All(a => a.ProfileId == profileId));
     }
-        catch (NotFoundException)
-        {
-            Assert.Pass("NotFound is acceptable when test data is unavailable");
-        }
-    }
-
-    [Test]
-    public void ReadRecActionViewQuery_with_unknown_profile_throws_not_found()
-    {
-        var (sender, scope) = CreateScopedSender();
-        using var _ = scope;
-
-        var invalidProfileId = long.MaxValue;
-
-        Assert.ThrowsAsync<NotFoundException>(async () =>
-            await sender.Send(new ReadRecActionViewQuery
-            {
-                ProfileId = invalidProfileId
-            }));
-    }
 }

tests/ReC.Tests/Application/Results/ResultQueryTests.cs

@@ -34,9 +34,5 @@ public class ResultQueryTests : RecApplicationTestBase
 
             Assert.Pass("Read completed for unknown action id.");
         }
-        catch (NotFoundException)
-        {
-            Assert.Pass("NotFound is acceptable for unknown action");
-        }
     }
 }