feat: Implement a modular skill system with hotword detection, streaming text output, and enhanced logging.

Core/Skills/TerminalSkill.cs

@@ -0,0 +1,41 @@
+using System.Diagnostics;
+
+namespace Toak.Core.Skills;
+
+public class TerminalSkill : ISkill
+{
+    public string Name => "Terminal";
+    public string Description => "Translates an intent into a bash command and runs it in the background.";
+    public string[] Hotwords => new[] { "System terminal", "System command" };
+
+    public bool HandlesExecution => true;
+
+    public string GetSystemPrompt(string rawTranscript)
+    {
+        return @"You are a command-line assistant. The user will ask you to perform a task. 
+Translate the request into a single bash command.
+Output ONLY the raw bash command to achieve this task. Do not include markdown formatting, backticks, or explanations.";
+    }
+
+    public void Execute(string llmResult)
+    {
+        try
+        {
+            Console.WriteLine($"[TerminalSkill] Executing: {llmResult}");
+            var escapedCmd = llmResult.Replace("\"", "\\\"");
+            var pInfo = new ProcessStartInfo
+            {
+                FileName = "bash",
+                Arguments = $"-c \"{escapedCmd}\"",
+                UseShellExecute = false,
+                CreateNoWindow = true
+            };
+            Process.Start(pInfo);
+            IO.Notifications.Notify("Toak Terminal Executed", llmResult);
+        }
+        catch (Exception ex)
+        {
+            Console.WriteLine($"[TerminalSkill Error] {ex.Message}");
+        }
+    }
+}