improve notifier + add transcriber

internal/transcriber/transcriber.go

@@ -0,0 +1,39 @@
+package transcriber
+
+import (
+	"context"
+	"time"
+
+	"github.com/leonardotrapani/hyprvoice/internal/recording"
+)
+
+type TranscriptionResult struct {
+	Text      string
+	Timestamp time.Time
+	IsFinal   bool
+}
+
+type Transcriber interface {
+	Start(ctx context.Context, frameCh <-chan recording.AudioFrame) (<-chan error, error)
+	Stop() error
+	GetTranscription() (string, error)
+}
+
+type Config struct {
+	Provider   string
+	APIKey     string
+	Language   string
+	ChunkSize  int
+	BufferTime time.Duration
+	Model      string
+}
+
+func DefaultConfig() Config {
+	return Config{
+		Provider:   "openai",
+		Language:   "en",
+		ChunkSize:  16384,
+		BufferTime: 2 * time.Second,
+		Model:      "whisper-1",
+	}
+}