feat(extension): update ServerCommands for connection mode

[CalvinAllen]

Parent Epic

Part of #18 - STDIO Transport Support

Description

Update ServerCommands to handle the new connection modes - disable HTTP commands when in STDIO mode.

Implementation

Modify: src/CodingWithCalvin.MCPServer/Commands/ServerCommands.cs

Command State Changes

private static void OnBeforeQueryStatusStart(object sender, EventArgs e)
{
    if (sender is OleMenuCommand command)
    {
        // Disable Start when:
        // - Already running HTTP server
        // - In STDIO client mode (external server)
        command.Enabled = MCPServerPackage.CurrentMode == ConnectionMode.None;
    }
}

private static void OnBeforeQueryStatusStop(object sender, EventArgs e)
{
    if (sender is OleMenuCommand command)
    {
        // Only enable Stop for HTTP mode (we control the server)
        // STDIO mode server is controlled externally
        command.Enabled = MCPServerPackage.CurrentMode == ConnectionMode.HttpServer
            && MCPServerPackage.ServerManager?.IsRunning == true;
    }
}

Status Display

Update any status display to show current mode:

• "HTTP Server running on port 5050"
• "STDIO mode - connected to external server"
• "Idle - watching for connections"

Acceptance Criteria

• Start command disabled in STDIO mode
• Stop command only enabled for HTTP mode
• Status text reflects current mode
• Commands refresh when mode changes