refactor(tests): migrate Database.Tests from FluentAssertions to Shouldly

Replace FluentAssertions with Shouldly across all 6 test files (94 tests).
Add ShouldlyExtensions for BeCloseTo and BeEquivalentTo patterns.

NEW/tests/JdeScoping.Database.Tests/Procedures/StoredProcedureExistsTests.cs

@@ -1,6 +1,6 @@
 using Dapper;
-using FluentAssertions;
 using JdeScoping.Database.Tests.Infrastructure;
+using Shouldly;
 
 namespace JdeScoping.Database.Tests.Procedures;
 
@@ -28,42 +28,42 @@ public class StoredProcedureExistsTests : DatabaseTestBase
     public async Task usp_SubmitSearch_Exists()
     {
         var exists = await ProcedureExistsAsync("usp_SubmitSearch");
-        exists.Should().BeTrue("usp_SubmitSearch should be created by migration 040");
+        exists.ShouldBeTrue("usp_SubmitSearch should be created by migration 040");
     }
 
     [Fact]
     public async Task usp_StartSearch_Exists()
     {
         var exists = await ProcedureExistsAsync("usp_StartSearch");
-        exists.Should().BeTrue("usp_StartSearch should be created by migration 041");
+        exists.ShouldBeTrue("usp_StartSearch should be created by migration 041");
     }
 
     [Fact]
     public async Task usp_CompleteSearch_Exists()
     {
         var exists = await ProcedureExistsAsync("usp_CompleteSearch");
-        exists.Should().BeTrue("usp_CompleteSearch should be created by migration 042");
+        exists.ShouldBeTrue("usp_CompleteSearch should be created by migration 042");
     }
 
     [Fact]
     public async Task usp_ResetPartialSearches_Exists()
     {
         var exists = await ProcedureExistsAsync("usp_ResetPartialSearches");
-        exists.Should().BeTrue("usp_ResetPartialSearches should be created by migration 043");
+        exists.ShouldBeTrue("usp_ResetPartialSearches should be created by migration 043");
     }
 
     [Fact]
     public async Task usp_ValidateSearchCriteria_Exists()
     {
         var exists = await ProcedureExistsAsync("usp_ValidateSearchCriteria");
-        exists.Should().BeTrue("usp_ValidateSearchCriteria should be created by migration 048");
+        exists.ShouldBeTrue("usp_ValidateSearchCriteria should be created by migration 048");
     }
 
     [Fact]
     public async Task usp_ProcessMisStagingData_Exists()
     {
         var exists = await ProcedureExistsAsync("usp_ProcessMisStagingData");
-        exists.Should().BeTrue("usp_ProcessMisStagingData should be created by migration 049");
+        exists.ShouldBeTrue("usp_ProcessMisStagingData should be created by migration 049");
     }
 
     [Fact]
@@ -86,7 +86,7 @@ public class StoredProcedureExistsTests : DatabaseTestBase
               WHERE schema_id = SCHEMA_ID('dbo')
                 AND name LIKE 'usp_%'");
 
-        actualCount.Should().BeGreaterThanOrEqualTo(
+        actualCount.ShouldBeGreaterThanOrEqualTo(
             expectedProcedures.Length,
             $"Database should have at least {expectedProcedures.Length} stored procedures");
     }