fix: clear sqlite pools before test cleanup

Author: KSemenenko

DotPilot.Tests/ChatSessions/Execution/AgentSessionServiceTests.cs

@@ -13,7 +13,7 @@ public sealed class AgentSessionServiceTests
 {
     private const int LegacyDefaultRole = 4;
     private const string LegacyEmptyCapabilitiesJson = "[]";
-    private const int DeleteRetryCount = 20;
+    private const int DeleteRetryCount = 40;
     private static readonly TimeSpan DeleteRetryDelay = TimeSpan.FromMilliseconds(250);
 
     [Test]
@@ -650,6 +650,7 @@ private static async Task DeleteDirectoryWithRetryAsync(string path)
     {
         for (var attempt = 0; attempt < DeleteRetryCount; attempt++)
         {
+            SqliteConnection.ClearAllPools();
             if (!Directory.Exists(path))
             {
                 return;

DotPilot.Tests/ChatSessions/Persistence/AgentSessionPersistenceTests.cs

@@ -2,14 +2,15 @@
 using System.Text.Json.Serialization.Metadata;
 using DotPilot.Core.ChatSessions;
 using DotPilot.Core.ControlPlaneDomain;
+using Microsoft.Data.Sqlite;
 using Microsoft.Extensions.AI;
 using Microsoft.Extensions.DependencyInjection;
 
 namespace DotPilot.Tests.ChatSessions;
 
 public sealed class AgentSessionPersistenceTests
 {
-    private const int DeleteRetryCount = 20;
+    private const int DeleteRetryCount = 40;
     private static readonly TimeSpan DeleteRetryDelay = TimeSpan.FromMilliseconds(250);
     private static readonly JsonSerializerOptions HistorySerializerOptions = new()
     {
@@ -158,6 +159,7 @@ private static async Task DeleteDirectoryAsync(string path)
     {
         for (var attempt = 0; attempt < DeleteRetryCount; attempt++)
         {
+            SqliteConnection.ClearAllPools();
             if (!Directory.Exists(path))
             {
                 return;

DotPilot.Tests/Workspace/Services/StartupWorkspaceHydrationTests.cs

@@ -1,13 +1,14 @@
 using DotPilot.Core.ChatSessions;
 using DotPilot.Tests.Providers;
+using Microsoft.Data.Sqlite;
 using Microsoft.Extensions.DependencyInjection;
 
 namespace DotPilot.Tests.Workspace;
 
 [NonParallelizable]
 public sealed class StartupWorkspaceHydrationTests
 {
-    private const int DeleteRetryCount = 20;
+    private const int DeleteRetryCount = 40;
     private static readonly TimeSpan DeleteRetryDelay = TimeSpan.FromMilliseconds(250);
 
     [Test]
@@ -112,6 +113,7 @@ private static async Task DeleteDirectoryWithRetryAsync(string path)
     {
         for (var attempt = 0; attempt < DeleteRetryCount; attempt++)
         {
+            SqliteConnection.ClearAllPools();
             if (!Directory.Exists(path))
             {
                 return;