chore(services): update components based on recent changes

Changes:
 .env.example                                                     | 5 +++++
 services/discord-gateway/src/modules/voice-recording/recorder.ts | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

.env.example

@@ -58,6 +58,11 @@ POSTGRES_POOL_MAX=10                    # Maximum pool connections (default: 10)
 # === Redis ===
 REDIS_URL=redis://localhost:6379        # Redis connection string (default: redis://localhost:6379)
 
+# === Voice PCM WebSocket (direct gateway→backend, bypasses Redis) ===
+VOICE_PCM_WS_ENABLED=true               # Use direct WS for PCM audio (default: true)
+BACKEND_WS_URL=ws://backend:3000/ws     # Backend WebSocket URL for gateway PCM streaming
+BACKEND_WS_TOKEN=                       # REQUIRED if VOICE_PCM_WS_ENABLED=true. Internal shared secret
+
 # === Attachments ===
 TELE_UPLOAD_URL=https://upload.asepharyana.my.id/api/upload   # Attachment upload endpoint (default)
 ATTACHMENT_UPLOAD_TIMEOUT_MS=30000      # Upload timeout in ms (default: 30000)