Introducing OpenAI offloaded transcription

.env.example

@@ -10,6 +10,14 @@ OPENWEBUI_API_KEY=put_your_openwebui_api_key_here
 OPENWEBUI_KB_NAME=Homelab Library
 OPENWEBUI_KB_ID=your_kb_uuid_here
 
+# Transcription backend (local Whisper by default)
+TRANSCRIBE_BACKEND=local
+OPENAI_API_KEY=
+# Uncomment to customize OpenAI settings when offloading transcription
+# OPENAI_BASE_URL=https://api.openai.com/v1
+# OPENAI_TRANSCRIBE_MODEL=whisper-1
+# OPENAI_TRANSCRIBE_TIMEOUT=600
+
 # Docker volumes paths
 LIBRARY_HOST_DIR=/mnt/nfs/library
 TRANSCRIPTS_HOST_DIR=/mnt/nfs/transcripts
@@ -17,4 +25,4 @@ TRANSCRIPTS_HOST_DIR=/mnt/nfs/transcripts
 # TMP_HOST_DIR=./tmp
 # MODELS_HOST_DIR=./models
 # MEILI_DATA_HOST_DIR=./data/meili
-# REDIS_DATA_HOST_DIR=./data/redis
+# REDIS_DATA_HOST_DIR=./data/redis