feat: 운영 안정성과 세션 음성 경험 개선

scripts/dev-up.ps1

@@ -16,14 +16,20 @@
   vite 웹 서버를 띄우지 않는다(API만 필요할 때).
 .PARAMETER NoDb
   Docker Postgres 보장을 건너뛰고 in-memory degraded 기동을 허용한다.
+.PARAMETER UseHiggsVoice
+  로컬 synthetic seed 전용 Higgs TTS 서버를 준비하고 dev API의 P1 음성 공급자로 연결한다.
 .EXAMPLE
   powershell -NoProfile -ExecutionPolicy Bypass -File scripts\dev-up.ps1
+.EXAMPLE
+  powershell -NoProfile -ExecutionPolicy Bypass -File scripts\dev-up.ps1 -UseHiggsVoice
 #>
 param(
   [int]$ApiPort = 8000,
   [switch]$NoGateway,
   [switch]$NoWeb,
-  [switch]$NoDb
+  [switch]$NoDb,
+  [switch]$UseHiggsVoice,
+  [int]$HiggsPort = 9881
 )
 $ErrorActionPreference = 'Stop'
 $repo = Split-Path -Parent $PSScriptRoot
@@ -245,6 +251,14 @@ if (-not $NoDb) {
   Ensure-DevDb
 }
 
+if ($UseHiggsVoice) {
+  Write-Host '[voice] 로컬 Higgs TTS 준비 (synthetic seed only)...'
+  $higgsLauncher = Join-Path $PSScriptRoot 'start-higgs-tts.ps1'
+  & $higgsLauncher -Port $HiggsPort -WaitReadySeconds 180
+  $env:VIGNETTE_VOICE_TTS_PROVIDER = 'higgs'
+  $env:VIGNETTE_HIGGS_TTS_URL = "http://127.0.0.1:$HiggsPort"
+}
+
 if (-not $NoGateway) {
   Write-Host '[2/4] 엔진 게이트웨이 :9099 (claude_cli)...'
   $gatewayArgs = @($PyPre) + @('-m', 'uvicorn', 'engine_gateway.gateway:app', '--host', '127.0.0.1', '--port', '9099')
@@ -256,6 +270,7 @@ if (-not $NoGateway) {
 Write-Host ('[3/4] API :{0} (단일 프로세스, degraded in-memory OK, seed 페르소나)...' -f $ApiPort)
 $env:AUTO_SEED_PERSONAS = 'true'
 $env:ALLOW_SEED_PERSONA_FALLBACK = 'true'
+$env:VIGNETTE_LIVE_CLIENT_PROVIDER = 'claude_cli'
 $env:VITE_API_PROXY_TARGET = "http://127.0.0.1:$ApiPort"
 $apiArgs = @($PyPre) + @('-m', 'uvicorn', 'app.main:app', '--host', '127.0.0.1', '--port', "$ApiPort")
 Start-Process -FilePath $Python -ArgumentList $apiArgs -WorkingDirectory $api -WindowStyle Hidden -RedirectStandardOutput (Join-Path $logs 'api.out.log') -RedirectStandardError (Join-Path $logs 'api.err.log')