feat: manage venv for all backends

1 files changed, 14 insertions, 5 deletions

diff --git a/backends/common.py b/backends/common.py
index d707fdc..2529a8f 100644
--- a/backends/common.py
+++ b/backends/common.py
@@ -20,6 +20,11 @@ from typing import Dict, List, Optional, Set, Tuple
 # (./audio.cpp, ./faster-qwen3-tts) so a single tree holds everything.
 TTS_ROOT = Path(__file__).resolve().parent.parent
 
+# The project's sample-voice directory: .wav files dropped here are offered
+# as the default source when a setup/configure wizard asks for a wav
+# directory (both the TUI browser start and the --wavs flag default).
+VOICES_DIR = TTS_ROOT / "voices"
+
 # converter/config.py — rewritten in place by update_config_value so the
 # converter picks up the host/port/voice a wizard configured.
 CONFIG_PATH = TTS_ROOT / "converter" / "config.py"
@@ -249,8 +254,12 @@ def git_clone(url: str, target: Path) -> int:
 
 
 def pip_install(packages: List[str]) -> int:
-    """pip install PACKAGES (into the current environment). Returns exit code."""
-    print(f"[INFO] pip install {' '.join(packages)}...")
-    import sys
-    return run_console_subprocess([sys.executable, "-m", "pip", "install",
-                                   *packages])
+    """pip install PACKAGES into the managed venv (``envs/tts``). Returns exit code.
+
+    Delegates to ``backends.envs.pip_install`` so backend TTS packages are
+    installed alongside the app requirements in the tool-managed environment
+    rather than into whatever interpreter happens to be running the wizard.
+    The import is local to avoid a circular import (envs imports this module).
+    """
+    from backends import envs
+    return envs.pip_install(packages)