add GeneralConfig with Language field to config types

internal/config/types.go

@@ -7,7 +7,13 @@ import (
 	"github.com/leonardotrapani/hyprvoice/internal/notify"
 )
 
+// GeneralConfig holds global settings that apply across the application
+type GeneralConfig struct {
+	Language string `toml:"language"` // ISO 639-1 code (e.g., en, es, de). Empty for auto-detect.
+}
+
 type Config struct {
+	General       GeneralConfig             `toml:"general"`
 	Recording     RecordingConfig           `toml:"recording"`
 	Transcription TranscriptionConfig       `toml:"transcription"`
 	Injection     InjectionConfig           `toml:"injection"`

progress.txt

@@ -506,3 +506,10 @@ Started: Sun Feb  1 12:22:47 AM CET 2026
 - Documented validation behavior: config-time hard error + runtime fallback with notification
 - Added example configurations: Local Transcription, Deepgram Streaming, Ultra-Low Latency Streaming
 - Typecheck passes
+
+### Task 47: Add GeneralConfig with Language field to config types
+- Added `GeneralConfig` struct to internal/config/types.go with Language string field
+- Added `General GeneralConfig` field to Config struct with toml tag 'general'
+- Language field has ISO 639-1 code comment, empty for auto-detect
+- TranscriptionConfig.Language kept for backwards compat (will be used as override)
+- All tests passing, typecheck passes

tasks/prd.jsonc

@@ -15,7 +15,7 @@
 				"GeneralConfig has Language string field with toml:'language' tag",
 				"Typecheck passes"
 			],
-			"passes": false
+			"passes": true
 		},
 		{
 			"title": "Update config loading to handle general language",