Implement Round 4 Parakeet model selection

Ariver

2026-06-03 62f9a3b1e84455c32971272c03163ca543e2f68f

 privatevoice.src/internal/model/profile.go

@@ -3,6 +3,7 @@
const (
   DefaultModelID    = "sensevoice-zh"
   MoonshineModelID  = "moonshine-en"
   ParakeetModelID   = "parakeet-en"
   DefaultLanguageID = "zh-CN"
   EnglishLanguageID = "en"
)