Add management for Recent Connections with profiling and deletion

src/LightQueryProfiler.JsonRpc/JsonRpcServer.cs

@@ -429,4 +429,35 @@ public async Task SaveRecentConnectionAsync(
             throw;
         }
     }
+
+    /// <summary>
+    /// Deletes a recent connection by its unique identifier.
+    /// </summary>
+    /// <remarks>
+    /// If no row with the given <paramref name="request"/> Id exists the operation
+    /// completes silently — SQLite DELETE is a no-op when no rows match.
+    /// </remarks>
+    [JsonRpcMethod("DeleteRecentConnectionAsync", UseSingleObjectParameterDeserialization = true)]
+    public async Task DeleteRecentConnectionAsync(
+        DeleteRecentConnectionRequest request,
+        CancellationToken cancellationToken = default)
+    {
+        ArgumentNullException.ThrowIfNull(request);
+        cancellationToken.ThrowIfCancellationRequested();
+
+        try
+        {
+            await _connectionRepository.Delete(request.Id).ConfigureAwait(false);
+
+            if (_logger.IsEnabled(LogLevel.Information))
+            {
+                _logger.LogInformation("Recent connection deleted: Id={Id}", request.Id);
+            }
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Failed to delete recent connection: {Id}", request.Id);
+            throw;
+        }
+    }
 }

src/LightQueryProfiler.JsonRpc/Models/DeleteRecentConnectionRequest.cs

@@ -0,0 +1,10 @@
+namespace LightQueryProfiler.JsonRpc.Models;
+
+/// <summary>
+/// Request model for deleting a recent connection by its unique identifier.
+/// </summary>
+public record DeleteRecentConnectionRequest
+{
+    /// <summary>Gets the unique identifier of the connection to delete.</summary>
+    public required int Id { get; init; }
+}

tests/LightQueryProfiler.JsonRpc.Tests/JsonRpcServerTests.cs

@@ -373,6 +373,51 @@ public async Task GetRecentConnectionsAsync_WhenConnectionStringModeRow_ReturnsD
         Assert.Equal("mydb", dto.InitialCatalog);
     }
 
+    // ─── DeleteRecentConnectionAsync ────────────────────────────────────────────
+
+    [Fact]
+    public async Task DeleteRecentConnectionAsync_WhenRequestIsNull_ThrowsArgumentNullException()
+    {
+        // Arrange
+        var mockRepo = new Mock<IConnectionRepository>();
+        var server = new JsonRpcServer(_mockLogger.Object, mockRepo.Object);
+
+        // Act & Assert
+        await Assert.ThrowsAsync<ArgumentNullException>(() =>
+            server.DeleteRecentConnectionAsync(null!, TestContext.Current.CancellationToken));
+    }
+
+    [Fact]
+    public async Task DeleteRecentConnectionAsync_WhenValidId_CallsRepositoryDelete()
+    {
+        // Arrange
+        var mockRepo = new Mock<IConnectionRepository>();
+        mockRepo.Setup(r => r.Delete(It.IsAny<int>())).Returns(Task.CompletedTask);
+        var server = new JsonRpcServer(_mockLogger.Object, mockRepo.Object);
+        var request = new DeleteRecentConnectionRequest { Id = 42 };
+
+        // Act
+        await server.DeleteRecentConnectionAsync(request, TestContext.Current.CancellationToken);
+
+        // Assert
+        mockRepo.Verify(r => r.Delete(42), Times.Once);
+    }
+
+    [Fact]
+    public async Task DeleteRecentConnectionAsync_WhenRepositoryThrows_PropagatesException()
+    {
+        // Arrange
+        var mockRepo = new Mock<IConnectionRepository>();
+        mockRepo.Setup(r => r.Delete(It.IsAny<int>()))
+            .ThrowsAsync(new InvalidOperationException("DB error"));
+        var server = new JsonRpcServer(_mockLogger.Object, mockRepo.Object);
+        var request = new DeleteRecentConnectionRequest { Id = 99 };
+
+        // Act & Assert
+        await Assert.ThrowsAsync<InvalidOperationException>(() =>
+            server.DeleteRecentConnectionAsync(request, TestContext.Current.CancellationToken));
+    }
+
     [Fact]
     public async Task StartProfilingAsync_WhenEngineTypeIsZero_IsValidInput()
     {

vscode-extension/CHANGELOG.md

@@ -5,6 +5,21 @@ All notable changes to the Light Query Profiler extension will be documented in
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.4.0] - 2026-04-21
+
+### Added
+
+- **Recent Connections – Start Profiling button**: Each connection row in the Recent
+  Connections panel now has a **▶ Start** button. Clicking it opens the profiler panel,
+  fills the connection form, and starts profiling automatically — no extra click required.
+- **Recent Connections – Delete button**: Each connection row now has a **✕ Delete** button
+  that permanently removes the entry from the local database and refreshes the list in place.
+- New `DeleteRecentConnectionAsync` JSON-RPC endpoint in the .NET backend that delegates to
+  the existing `ConnectionRepository.Delete(int id)` implementation.
+- New `deleteRecentConnection(id)` method on `ProfilerClient` for TypeScript consumers.
+- New `startProfilingWithConnection(connection)` public method on `ProfilerPanelProvider`
+  to support programmatic connection-fill-and-start from external providers.
+
 ## [1.3.0] - 2026-04-xx
 
 ### Added

vscode-extension/package.json

@@ -2,7 +2,7 @@
   "name": "light-query-profiler",
   "displayName": "Light Query Profiler",
   "description": "SQL Server and Azure SQL Database query profiler for VS Code",
-  "version": "1.3.0",
+  "version": "1.4.0",
   "publisher": "brandochn",
   "author": {
     "name": "Hildebrando Chávez",