feat: Introduce ITranscriptionOrchestrator and related interfaces, refactoring DaemonService and other components to use dependency injection.

Core/Interfaces/Interfaces.cs

@@ -0,0 +1,62 @@
+using System;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using Toak.Configuration;
+
+namespace Toak.Core.Interfaces;
+
+public interface IConfigProvider
+{
+    ToakConfig LoadConfig();
+    void SaveConfig(ToakConfig config);
+}
+
+public interface ISpeechClient
+{
+    Task<string> TranscribeAsync(string filePath, string language = "", string model = "whisper-large-v3-turbo");
+}
+
+public interface ILlmClient
+{
+    Task<string> RefineTextAsync(string rawTranscript, string systemPrompt, string model = "openai/gpt-oss-20b");
+    IAsyncEnumerable<string> RefineTextStreamAsync(string rawTranscript, string systemPrompt, string model = "openai/gpt-oss-20b");
+}
+
+public interface IAudioRecorder
+{
+    string GetWavPath();
+    void StartRecording();
+    void StopRecording();
+}
+
+public interface INotifications
+{
+    void Notify(string title, string message = "");
+    void PlaySound(string soundPath);
+}
+
+public interface ITextInjector
+{
+    Task<string> InjectStreamAsync(IAsyncEnumerable<string> textStream, string backend = "xdotool");
+    Task InjectTextAsync(string text, string backend = "xdotool");
+}
+
+public interface IHistoryManager
+{
+    void SaveEntry(string rawText, string finalText, string? skillUsed, long timeTakenMs);
+    List<HistoryEntry> LoadHistory();
+    void ClearHistory();
+}
+
+public interface IClipboardManager
+{
+    void Copy(string text);
+}
+
+public interface IRecordingStateTracker
+{
+    int? GetRecordingPid();
+    void SetRecording(int pid);
+    void ClearRecording();
+    bool IsRecording();
+}