feat: add expressive offline Russian book TTS

tools/tts/run_booktts_ab_windows.ps1

@@ -0,0 +1,15 @@
+param([string]$Root = 'C:\Users\seven\AletheiaBookTTS')
+
+$ErrorActionPreference = 'Stop'
+$env:PYTHONUTF8 = '1'
+$env:PYTHONIOENCODING = 'utf-8'
+$python = Join-Path $Root '.venv\Scripts\python.exe'
+$work = Join-Path $Root 'work'
+$candidate = Join-Path $work 'student-100k-v1'
+& $python (Join-Path $work 'vosk_booktts_experiment.py') compare-feeds `
+    --model (Join-Path $Root 'teacher\model.onnx') `
+    --baseline-calibration (Join-Path $candidate 'feeds-baseline-100-v2') `
+    --candidate-calibration (Join-Path $candidate 'feeds-student-int8-100-v2') `
+    --output (Join-Path $candidate 'wav-ab-100-v1') `
+    --resume
+exit $LASTEXITCODE