feat: add talk voice alias map

docs/configuration.md

@@ -199,11 +199,16 @@ Controls inbound/outbound prefixes and timestamps.
 
 Defaults for Talk mode (macOS/iOS/Android). Voice IDs fall back to `ELEVENLABS_VOICE_ID` or `SAG_VOICE_ID` when unset.
 `apiKey` falls back to `ELEVENLABS_API_KEY` (or the gateway’s shell profile) when unset.
+`voiceAliases` lets Talk directives use friendly names (e.g. `"voice":"Clawd"`).
 
 ```json5
 {
   talk: {
     voiceId: "elevenlabs_voice_id",
+    voiceAliases: {
+      Clawd: "EXAVITQu4vr4xnSDxMaL",
+      Roger: "CwhRBWXzGAHq8TQ4Fs17"
+    },
     modelId: "eleven_v3",
     outputFormat: "mp3_44100_128",
     apiKey: "elevenlabs_api_key",